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SumatraPDF-prerel-64.exe Trojan Heuristic Analysis

Updated 0 seconds ago
Checked by Malware Check
SumatraPDF-prerel-64.exe

Technical Analysis

File Name SumatraPDF-prerel-64.exe
File Type
PE32+ executable (GUI) x86-64, for MS Windows
Scanner Version 1.0.220.174
Database Version 2025-07-19 00:00:24 UTC
⚠

Trojan.Heur!.00014023

Malware family: Heuristic

Heuristic detection uses behavioral analysis and pattern recognition to identify potential threats without specific signatures. This proactive approach detects suspicious code behavior that may indicate malware presence. Detection may occasionally produce false positives when legitimate software exhibits similar behavioral patterns.
N/A
Detection Rate
18,390,168
File Size (bytes)
2025-07-19
Analysis Date

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File Identification

Hash Type Value Action
MD5
37c4b5c2c5ecec21e5fb7115685b4845
SHA1
92fdf4aa53b3525f5fe71eaf2f8da91f820a7808
SHA256
8ad3479c59bcaeeb39b1a122266dd5f311e6e564cd685c28092531515a459f1d
SHA512
1ebde0d6ba5100d5d6f4ae739fed0b23ec38a3deaf27d8f18ffe9ac08f6752c241b2a612a2d453cafde90a91998010152d05c19594503a5dd95a566213b2f526
ImpHash
87846d2f1a06d71955f3e1ee53c2d290

PE Analysis

Basic Information

▼
Icon
Hash: e1ad7ef80a02b2db41667c9dc01738ca
Fuzzy: 31aa66190d87a4033e593a30507edc5c
dHash: 0080f0a4b698a400
Image Base 0x140000000
Entry Point 0x140599718
Compilation Time 2025-07-10 19:36:20
Checksum 0x01196431 (Actual: 0x01196431)
OS Version 6.0
PEiD Signatures PE32+ executable (GUI) x86-64, for MS Windows
PDB Path C:\Users\kjk\src\sumatrapdf\out\rel64\SumatraPDF.pdb
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 12 libraries
Exports 0 functions
Resources 46 Resources
Sections 7 Sections

Version Information

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FileDescription SumatraPDF
FileVersion 3.6
LegalCopyright Copyright 2006-2025 all authors (GPLv3)
ProductName SumatraPDF
ProductVersion 3.6
CompanyName Krzysztof Kowalczyk
Translation 0x0409 0x04e4

PE Sections

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Name Virtual Address Virtual Size Raw Size Entropy Characteristics MD5
.text 0x00001000 6,151,808 bytes 6,152,192 bytes 6.70 (Compressed) IMAGE_SCN_CNT_CODE|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ B27256E83BE2D2AFB054039DAFCC7E53
.rdata 0x005df000 2,675,976 bytes 2,676,224 bytes 6.82 (Compressed) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ E5806D95406E12FD1DB762E5CFB75E29
.data 0x0086d000 8,064,408 bytes 7,531,008 bytes 6.70 (Compressed) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE D67624715F2C95E1275E41BC60152B1D
.pdata 0x0101e000 150,708 bytes 151,040 bytes 6.32 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ FCA2248A8B9D2BE68138D696A5CC2000
.fptable 0x01043000 256 bytes 512 bytes 0.00 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE BF619EAC0CDF3F68D496EA9344137E8B
.rsrc 0x01044000 1,829,576 bytes 1,829,888 bytes 7.51 (Packed/Encrypted) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ 33D8AD6BF575B90CE6337AAB83467605
.reloc 0x01203000 37,644 bytes 37,888 bytes 5.46 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_DISCARDABLE|IMAGE_SCN_MEM_READ 02E58A5CCBBDC74F1A3E2304F6699AD2
Entropy Analysis Alert

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

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

Resource Analysis

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Total Resources: 46 (1,827,057 bytes)
Resource Type Count Total Size Percentage
RT_CURSOR 1 308 bytes
0%
RT_BITMAP 1 808 bytes
0%
RT_ICON 26 355,589 bytes
19.5%
RT_DIALOG 9 4,126 bytes
0.2%
RT_RCDATA 2 1,463,389 bytes
80.1%
RT_GROUP_CURSOR 1 20 bytes
0%
RT_GROUP_ICON 4 388 bytes
0%
RT_VERSION 1 612 bytes
0%
RT_MANIFEST 1 1,817 bytes
0.1%

Certificate Chain Analysis

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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

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.

Trojan.Heur!.00014023 Removal

Gridinsoft has the capability to identify and eliminate Trojan.Heur!.00014023 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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