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The winmm.dll (DllLoader) File Analysis

Updated 3 months ago
Checked by Malware Check
winmm.dll

Technical Analysis

File Name winmm.dll
File Type
PE32+ executable (DLL) (GUI) x86-64, for MS Windows
Scanner Version 1.0.226.174
Database Version 2025-10-02 12:00:39 UTC
✓

Clean File

No threats detected by our scanner

0%
Detection Rate
263,280
File Size (bytes)
2025-10-02
Analysis Date

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File Identification

Hash Type Value Action
MD5
c5bf99bc699a12c89783ec83c42a36c7
SHA1
acd45b08796a4932ae7ad3989c571993ebcf0352
SHA256
54a6ece54641ee6e437caa351e493ddf4435f3e23e3d4ab4655c35f57b94fc59
SHA512
2d86cf49181d66e2747dd6f8ada8eb0646b4a9767d4dc2ad5dfeed5c9737543693855a43c6c4e19334bad6116157caa0344518d2ca803ec0882ea630d9d32ebf
ImpHash
d35c16c95a55a75561ea1d764e139684

PE Analysis

Basic Information

▼
Image Base 0x180000000
Entry Point 0x180008ed4
Compilation Time 2021-03-04 01:02:37
Checksum 0x00045e55 (Actual: 0x00045e55)
OS Version 6.0
PEiD Signatures PE32+ executable (DLL) (GUI) x86-64, for MS Windows
Digital Signature Chain verification from CN=OnlineFix, OU=OnlineFix, O=OnlineFix, L=OnlineFix, ST=OnlineFix, [email protected], C=CA (serial:361051798580697185074278552919792508455156591697, sha1:50f7d45aae6b69020917aceff35d8bb5d6cabaac) failed: Unable to build a validation path for the certificate "Common Name: OnlineFix, Organizational Unit: OnlineFix, Organization: OnlineFix, Locality: OnlineFix, State/Province: OnlineFix, Email Address: [email protected], Country: CA" - no issuer matching "Common Name: Ascertia Root CA 2, Organization: Ascertia, Country: GB" was found
Imports 2 libraries
KERNEL32, USER32
Exports 193 functions
Resources 1 Resources
Sections 7 Sections

Version Information

▼
CompanyName Online-Fix
FileDescription DllLoader
FileVersion 1.0.0.0
LegalCopyright Copyright (C) 2021, 0xdeadc0de
ProductVersion 1.0.0.0
Translation 0x0007 0x04b0

PE Sections

▼
Name Virtual Address Virtual Size Raw Size Entropy Characteristics MD5
.text 0x00001000 150,548 bytes 151,040 bytes 6.42 (Normal) IMAGE_SCN_CNT_CODE|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ CE147BE92D6C04E84647231E588533ED
.rdata 0x00026000 83,168 bytes 83,456 bytes 5.18 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ 1ACCA0385DCDE193D5DF00A9C566CE02
.data 0x0003b000 12,008 bytes 5,120 bytes 2.72 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE DBD1673C58F6015265E1F7020B803FCD
.pdata 0x0003e000 10,344 bytes 10,752 bytes 5.14 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ C742D88961C6960658638B5EC3949DFD
_RDATA 0x00041000 244 bytes 512 bytes 2.02 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ D9898A153A56F062B4F054136CABA4E8
.rsrc 0x00042000 632 bytes 1,024 bytes 2.11 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ EDACACA31864002EE0788BB967C8B838
.reloc 0x00043000 2,776 bytes 3,072 bytes 5.23 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_DISCARDABLE|IMAGE_SCN_MEM_READ B92BE06D8A5438905E1CD53CAC73C0C8

Resource Analysis

▼
Total Resources: 1 (536 bytes)
Resource Type Count Total Size Percentage
RT_VERSION 1 536 bytes
100%

Certificate Chain Analysis

▼
Certificate Information
Description DllLoader
File Version 1.0.0.0
Verification Status A certificate chain could not be built to a trusted root authority.
Copyright Copyright (C) 2021, 0xdeadc0de
Certificate Chain Summary
OnlineFix #1 Primary
Validity Period: 2021-02-16 23:11:11 → 2021-03-16 23:11:11
Signature Algorithm: sha256RSA
Serial Number: 3F 3E 1F 61 F6 EF 5C 6C CD 4A 23 D6 9A CA 97 3D CE 16 2C 51
Ascertia Public CA 1 #2 Chain
Validity Period: 2009-04-21 12:15:17 → 2028-04-14 23:59:59
Signature Algorithm: sha1RSA
Serial Number: E6
DigiCert Timestamp 2021 #3 Chain
Validity Period: 2021-01-01 00:00:00 → 2031-01-06 00:00:00
Signature Algorithm: sha256RSA
Serial Number: 0D 42 4A E0 BE 3A 88 FF 60 40 21 CE 14 00 F0 DD
DigiCert SHA2 Assured ID Timestamping CA #4 Chain
Validity Period: 2016-01-07 12:00:00 → 2031-01-07 12:00:00
Signature Algorithm: sha256RSA
Serial Number: 0A A1 25 D6 D6 32 1B 7E 41 E4 05 DA 36 97 C2 15

✓ This file has been digitally signed and the certificate chain has been verified

  • The signature ensures file integrity and authenticity from the publisher
  • Timestamping proves when the signature was applied
Certificate Verification Status

Chain verification from CN=OnlineFix, OU=OnlineFix, O=OnlineFix, L=OnlineFix, ST=OnlineFix, [email protected], C=CA (serial:361051798580697185074278552919792508455156591697, sha1:50f7d45aae6b69020917aceff35d8bb5d6cabaac) failed: Unable to build a validation path for the certificate "Common Name: OnlineFix, Organizational Unit: OnlineFix, Organization: OnlineFix, Locality: OnlineFix, State/Province: OnlineFix, Email Address: [email protected], Country: CA" - no issuer matching "Common Name: Ascertia Root CA 2, Organization: Ascertia, Country: GB" was found

Recommendation: Verify the file source and ensure it comes from a trusted publisher.

Remember: This is Result of Online Virus Scanner

Gridinsoft Anti-Malware has a much more powerful virus scanning engine. We recommend using it for a more precise diagnosis of infected systems. This brief guide will help you install our flagship product for more accurate diagnostics:

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Keep Your System Protected

This file appears clean, but regular security maintenance is important

  1. Regular Scans: Run weekly system scans to detect new threats before they can cause damage.
  2. Keep Software Updated: Ensure your operating system and all applications have the latest security patches.
  3. Safe Browsing: Avoid suspicious websites and never download software from untrusted sources.
  4. Email Security: Be cautious with email attachments and links, even from known contacts.
Proactive Protection
This file passed all security checks, but stay vigilant. New malware variants appear daily that can evade detection. Always verify files come from official sources and check digital signatures when available.

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