Overview

overview

10

Static

static

10

virussign....16.exe

windows7-x64

9

virussign....16.exe

windows10-2004-x64

9

Analysis

  • max time kernel
    157s
  • max time network
    162s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/03/2024, 09:49

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General

  • Target
    virussign.com_965f6c3e5ddc0044a4b648f1cf6ad116.exe
  • Size 530KB
  • Sample240303-ltsfragg4w
  • SHA256 c65b130c724394c748c74cdc6209e679a5613deb51134009a20115b81637b4e4
  • MD5 SHA1 SHA512 SSDEEP
Score
9/10
persistencespywarestealerupx

Malware Config

Signatures

  • Detects executables containing possible sandbox analysis VM usernames 16 IoCs
  • UPX dump on OEP (original entry point) 19 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • UPX packed file 19 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

    upx
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in System32 directory 12 IoCs
  • Drops file in Program Files directory 17 IoCs
  • Drops file in Windows directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\virussign.com_965f6c3e5ddc0044a4b648f1cf6ad116.exe
    "C:\Users\Admin\AppData\Local\Temp\virussign.com_965f6c3e5ddc0044a4b648f1cf6ad116.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Enumerates connected drives
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:920
    • C:\Users\Admin\AppData\Local\Temp\virussign.com_965f6c3e5ddc0044a4b648f1cf6ad116.exe
      "C:\Users\Admin\AppData\Local\Temp\virussign.com_965f6c3e5ddc0044a4b648f1cf6ad116.exe"
      2⤵
      • Checks computer location settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4244
      • C:\Users\Admin\AppData\Local\Temp\virussign.com_965f6c3e5ddc0044a4b648f1cf6ad116.exe
        "C:\Users\Admin\AppData\Local\Temp\virussign.com_965f6c3e5ddc0044a4b648f1cf6ad116.exe"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:4744
    • C:\Users\Admin\AppData\Local\Temp\virussign.com_965f6c3e5ddc0044a4b648f1cf6ad116.exe
      "C:\Users\Admin\AppData\Local\Temp\virussign.com_965f6c3e5ddc0044a4b648f1cf6ad116.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:4756

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        fetish [milf] feet shoes (Sarah).mpeg.exe
        • Path C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\fetish [milf] feet shoes (Sarah).mpeg.exe
        • Size 1.3MB
        • SHA256 6db770176412c2209b81ca3984fc23737d1e7e9c1aac675dfa2627a040de10b8
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        memory/920-143-0x0000000000400000-0x0000000000420000-memory.dmp
        Download

        memory/920-217-0x0000000000400000-0x0000000000420000-memory.dmp
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        memory/920-246-0x0000000000400000-0x0000000000420000-memory.dmp
        Download

        memory/920-22-0x0000000000400000-0x0000000000420000-memory.dmp
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        memory/920-242-0x0000000000400000-0x0000000000420000-memory.dmp
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        memory/920-228-0x0000000000400000-0x0000000000420000-memory.dmp
        Download

        memory/920-222-0x0000000000400000-0x0000000000420000-memory.dmp
        Download

        memory/920-0-0x0000000000400000-0x0000000000420000-memory.dmp
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        memory/920-167-0x0000000000400000-0x0000000000420000-memory.dmp
        Download

        memory/920-201-0x0000000000400000-0x0000000000420000-memory.dmp
        Download

        memory/920-197-0x0000000000400000-0x0000000000420000-memory.dmp
        Download

        memory/920-205-0x0000000000400000-0x0000000000420000-memory.dmp
        Download

        memory/920-213-0x0000000000400000-0x0000000000420000-memory.dmp
        Download

        memory/4244-86-0x0000000000400000-0x0000000000420000-memory.dmp
        Download

        memory/4744-142-0x0000000000400000-0x0000000000420000-memory.dmp
        Download

        memory/4744-21-0x0000000000400000-0x0000000000420000-memory.dmp
        Download

        memory/4756-18-0x0000000000400000-0x0000000000420000-memory.dmp
        Download

        memory/4756-141-0x0000000000400000-0x0000000000420000-memory.dmp
        Download