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Winmm.dll Trojan Sabsik Analysis

Updated 1 year ago
Checked by Malware Check
winmm.dll

Technical Analysis

File Name winmm.dll
File Type
PE32 executable (DLL) (GUI) Intel 80386, for MS Windows
Scanner Version 1.0.152.174
Database Version 2023-12-25 15:02:36 UTC
⚠

Ransom.Win32.Sabsik.cld

Malware family: Sabsik

Sabsik is a malware variant capable of downloading additional payloads, including ransomware components. It can encrypt user files and initiate ransom demands. This threat represents a multi-stage attack where initial infection leads to more severe system compromise.
N/A
Detection Rate
8,295,936
File Size (bytes)
2023-12-25
Analysis Date

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File Identification

Hash Type Value Action
MD5
3a1cac062cc38026760174bccf1dc4a5
SHA1
26bf78465395fbf05098a58415a557d7cdbf133b
SHA256
46d0a03832d9ad930c52acda03078cda36d0181a26c07c3591fc9f551270c765
SHA512
6d5ffdf59561978508869662b98ef0d1a2adc0179d5e5f249f153c34ffeda2245bf45a68efc0492b37b3d01d97cb458afff551d187f9ee60b4b92dcbc4f9a520
ImpHash
d63debadcb2dbb47359fa636eeefccca

PE Analysis

Basic Information

▼
Image Base 0x10000000
Entry Point 0x10855dbc
Compilation Time 2023-04-17 00:23:01
Checksum 0x00000000 (Actual: 0x007f02b5)
OS Version 6.0
PEiD Signatures PE32 executable (DLL) (GUI) Intel 80386, for MS Windows
Digital Signature The PE file does not contain a certificate table.
Imports 17 libraries
Exports 193 functions
Resources 1 Resources
Sections 11 Sections

PE Sections

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Name Virtual Address Virtual Size Raw Size Entropy Characteristics MD5
0x00001000 217,088 bytes 86,016 bytes 8.00 (Packed/Encrypted) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE 67F309992D342284C79E41C878C4F65B
0x00036000 53,248 bytes 13,312 bytes 7.91 (Packed/Encrypted) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE 41344327B4F536E6CE760D6653ACF45B
0x00043000 8,192 bytes 1,024 bytes 6.23 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE 681A929C8172E103B35BC36586C1BEC2
0x00045000 4,096 bytes 512 bytes 0.18 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE DFD8870A9F37F00243F31C2C4FE4E8D2
0x00046000 8,192 bytes 1,536 bytes 7.30 (Compressed) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE 22463204DB8D64F6B6F31DD8BD642400
0x00048000 4,096 bytes 512 bytes 0.18 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE 014815C95A4A001B50679E5925A1C26A
0x00049000 4,096 bytes 0 bytes 0.00 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE D41D8CD98F00B204E9800998ECF8427E
0x0004a000 16,384 bytes 11,264 bytes 7.90 (Packed/Encrypted) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE B45D5A2B43A0CD6C60CE32F4B93B4BED
.rsrc 0x0004e000 4,096 bytes 512 bytes 2.53 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE C6EBA6F47D979DBA525B854A79760686
0x0004f000 6,512,640 bytes 6,268,928 bytes 8.00 (Packed/Encrypted) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE 9E6FE9118441E6133288FB693D76FB74
.data 0x00685000 1,912,832 bytes 1,910,784 bytes 7.97 (Packed/Encrypted) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE D326EFC019970AFCD49C33EE261EDED6
Entropy Analysis Alert

5 section(s) with high entropy (≥7.5) detected - possible packing/encryption

1 section(s) with elevated entropy (≥6.5) - possible compression

Resource Analysis

▼
Total Resources: 1 (145 bytes)
Resource Type Count Total Size Percentage
RT_MANIFEST 1 145 bytes
100%

Certificate Chain Analysis

▼
No Digital Signatures

This file is not digitally signed.

Security Implications:
  • Cannot verify the publisher's identity
  • Increased security risk when running this file
  • May trigger security warnings on some systems

⚠ This file either lacks a digital signature or the certificate chain could not be verified
Exercise caution when executing unsigned files from unknown sources

Certificate Verification Status

The PE file does not contain a certificate table.

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

Ransom.Win32.Sabsik.cld Removal

Gridinsoft has the capability to identify and eliminate Ransom.Win32.Sabsik.cld without requiring further user intervention.

Download Anti-Malware

Removal Instructions

Follow these steps to completely remove the threat from your system

  1. Start by downloading Gridinsoft Anti-Malware to your computer.
  2. Double-click on the gsam-en-install.exe file and follow the on-screen instructions to install the program.
  3. Once the installation of Gridinsoft Anti-Malware is complete, the program will open on the Scan screen.
  4. Click on the "Standard Scan" button to begin scanning your computer for threats.
  5. After the scanning process is finished, click on "Clean Now" to remove any detected threats.
  6. If prompted, restart your system to complete the removal process and ensure all threats are eliminated.
Important: Before You Start
Disconnect from the internet to prevent the malware from spreading or downloading additional threats. Run the scan in Safe Mode for better detection and removal of persistent threats.

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