Analysis

  • max time kernel
    120s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/12/2024, 16:33

General

  • Target

    7ad2cdfe244536e1770804b14822e67930598fbcb9c2ed8a04853a1733f46340.exe

  • Size

    20KB

  • MD5

    59502c980b553ee91bcc20ea6fa720f8

  • SHA1

    f4db3f200929072aad0c53f23dc357ab5b3099ab

  • SHA256

    7ad2cdfe244536e1770804b14822e67930598fbcb9c2ed8a04853a1733f46340

  • SHA512

    9f76231a4c9a88018365d9f92b698242a13797a4c64f1cb4088437acb763e2ab58343bcd682caefd43ae2573c07441849e3755f9c63855cc9d0ef36ea49d1f40

  • SSDEEP

    192:VjUWFh4fvYGIQnsA6psQXFaNJhLkwcud2DH9VwGfct1hM5EKU9:9KE7pXaNJawcudoD7U7S5Ev9

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • UPX packed file 4 IoCs

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

  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7ad2cdfe244536e1770804b14822e67930598fbcb9c2ed8a04853a1733f46340.exe
    "C:\Users\Admin\AppData\Local\Temp\7ad2cdfe244536e1770804b14822e67930598fbcb9c2ed8a04853a1733f46340.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:5088
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\EPURF.bat" "
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4512
      • C:\Windows\SysWOW64\reg.exe
        REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "xplorer" /t REG_SZ /d "C:\Windows\xplorer\xplorer.exe" /f
        3⤵
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        PID:2904
    • C:\Windows\xplorer\xplorer.exe
      "C:\Windows\xplorer\xplorer.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:4016

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\EPURF.txt

    Filesize

    124B

    MD5

    4e6e99d38b1264af2b53a68c7cd6d648

    SHA1

    55ffe17732d1d9c539d702a1311ef9674fe7b3cf

    SHA256

    168d9cdf4849fde3b4817db207e60934b6c877be439289f3fb3a4eb9e4326ff0

    SHA512

    bde21abed1bfc3dbdd6afc83614aa27c3f33dfbb434e139523ac57ecd84875b0e96a241f5828eda0b055f787ec7f95850b0f4ab0ee752ac36484b2bfd78a859d

  • C:\Windows\xplorer\xplorer.exe

    Filesize

    20KB

    MD5

    e6b46b676d82c058be6a5f77f7981404

    SHA1

    794c85be935e957bef383364ed8c65a2e32942f8

    SHA256

    152baee63a172b58eb32d8ddd795b9179201e6f68a45aeafe9b676c20a77da05

    SHA512

    9385c959eab65cedca4db1542cd088e96b45e0140a3626a1b956ab3d8e4ea19a823930077355a40a39ce605c36ecd41be6cff64a3fbcebf2b0c0c6f429db8721

  • memory/4016-28-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/5088-0-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/5088-26-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB