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The zen.installer.exe (Firefox) File Analysis

Updated 1 second ago
Checked by Malware Check
zen.installer.exe

Technical Analysis

File Name zen.installer.exe
File Type
PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed
Scanner Version 1.0.219.174
Database Version 2025-07-04 21:00:29 UTC
✓

Clean File

No threats detected by our scanner

0%
Detection Rate
77,183,784
File Size (bytes)
2025-07-04
Analysis Date

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File Identification

Hash Type Value Action
MD5
2fda04801a12f307b1cdaef56346d00b
SHA1
4bdfd34e1f1893d0a64bbd0802c4dbdde08a74c2
SHA256
af22a8b3c6d8037c5476833784e2bc7cbd163167f2ce689c45334ec70ef47069
SHA512
d69e93e9e8fa36da8f1cc37244a3c665170b371d46b4d15188a160b3fbe4d130bd9a9b790863776e135388834e6127cfb85e919f2226883c6c9d30099ab67af8
ImpHash
05d3dce2be32df01ca249872dd2cc117

PE Analysis

Basic Information

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Icon
Hash: e57d8b6832f9f054d83aa0fa2762f932
Fuzzy: ddf36ee6805648340b0e294d6cea59a8
dHash: 61e4cd1df1f0f032
Image Base 0x00400000
Entry Point 0x00434300
Compilation Time 2018-08-30 22:18:33
Checksum 0x049a1c00 (Actual: 0x049a1c00)
OS Version 4.0
PEiD Signatures PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed
Digital Signature An error occurred while validating the countersignature: The root Certum Trusted Network CA 2 lists its extended key usages, but {'time_stamping'} are not present
Imports 2 libraries
KERNEL32, MSVCRT
Exports 0 functions
Resources 12 Resources
Sections 3 Sections

Version Information

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CompanyName Mozilla
FileDescription Firefox
FileVersion 18.05
InternalName 7zS.sfx
LegalCopyright Mozilla
OriginalFilename 7zS.sfx.exe
ProductName Firefox
ProductVersion 18.05
Translation 0x0409 0x04b0

PE Sections

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Name Virtual Address Virtual Size Raw Size Entropy Characteristics MD5
UPX0 0x00001000 147,456 bytes 0 bytes 0.00 (Normal) IMAGE_SCN_CNT_UNINITIALIZED_DATA|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE D41D8CD98F00B204E9800998ECF8427E
UPX1 0x00025000 65,536 bytes 62,976 bytes 7.90 (Packed/Encrypted) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE 8273910B9F84A0CFAFEDF8ADDA9802A5
.rsrc 0x00035000 65,536 bytes 64,512 bytes 7.53 (Packed/Encrypted) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE AC4B230077159CF89C434CDE1B35B395
Entropy Analysis Alert

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

Resource Analysis

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Total Resources: 12 (64,114 bytes)
Resource Type Count Total Size Percentage
RT_ICON 4 61,507 bytes
95.9%
RT_DIALOG 1 184 bytes
0.3%
RT_STRING 4 368 bytes
0.6%
RT_GROUP_ICON 1 62 bytes
0.1%
RT_VERSION 1 628 bytes
1%
RT_MANIFEST 1 1,365 bytes
2.1%

Certificate Chain Analysis

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Certificate Information
Product Firefox
Description Firefox
File Version 18.05
Original Name 7zS.sfx.exe
Signing Date 12:47 AM 07/02/2025 (2 days ago)
Verification Status Signed
Signers Open Source Developer, OSCAR GONZALEZ MORENO; Certum Code Signing 2021 CA; Certum Trusted Network CA 2; Certum Trusted Network CA
Counter Signers Certum Timestamp 2025; Certum Timestamping 2021 CA; Certum Trusted Network CA 2; Certum Trusted Network CA
Internal Name 7zS.sfx
Copyright Mozilla
Certificate Chain Summary
Certum Trusted Network CA 2 #1 Primary
Validity Period: 2021-05-31 06:43:06 → 2029-09-17 06:43:06
Signature Algorithm: sha384RSA
Serial Number: 1B B5 8F 25 2A DF 23 00 49 28 C9 AE 3D 7E ED 27
Open Source Developer, OSCAR GONZALEZ MORENO #2 Chain
Validity Period: 2025-04-09 21:18:52 → 2025-09-09 05:33:26
Signature Algorithm: sha256RSA
Serial Number: 2E F6 8A 85 A2 1F EA C7 38 AB 27 80 FD BA 5E B5
Certum Timestamp 2025 #3 Chain
Validity Period: 2025-01-09 08:40:43 → 2036-01-07 08:40:43
Signature Algorithm: sha384RSA
Serial Number: 9E 9C 04 F6 55 A8 B4 A7 02 6D 49 8C 6C 78 8D AA
Certum Code Signing 2021 CA #4 Chain
Validity Period: 2021-05-19 05:32:18 → 2036-05-18 05:32:18
Signature Algorithm: sha384RSA
Serial Number: 99 A3 80 0A 26 55 3B 65 AB DC 6E 84 A6 B3 EA 39
Certum Timestamping 2021 CA #5 Chain
Validity Period: 2021-05-19 05:32:07 → 2036-05-18 05:32:07
Signature Algorithm: sha384RSA
Serial Number: E7 FF 69 C7 3B 35 CE 4B 91 26 D8 74 7C 68 A5 87

✓ 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

An error occurred while validating the countersignature: The root Certum Trusted Network CA 2 lists its extended key usages, but {'time_stamping'} are not present

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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