Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-03-2024 00:32

General

  • Target

    fbd66979ce7f2ce360555a590aa834283bf80e21343f8633e54e088f3f27db1c.exe

  • Size

    747KB

  • MD5

    50a43b87a6cfe2bbd5c65c946d09dabd

  • SHA1

    8523f9311baecc47062458abecf7e3aad643fe2b

  • SHA256

    fbd66979ce7f2ce360555a590aa834283bf80e21343f8633e54e088f3f27db1c

  • SHA512

    ae2afe6d328870f1608bef44ab30788fd4289f8f3bf6aa8980660932837533683bdc9307ad009bc78d2dfc7d6f72340ff5b54d968a67e95b9246c09caa72d1f3

  • SSDEEP

    12288:tEQoS9qhvQWCdG6HfwSoZnUVJFnbiM1OyAjk2SW4ZDb5RzIfu24NAXiSk0:t2P2GIoZnUrxvOyAQ2SWK/HeMSV

Malware Config

Signatures

  • Detects executables containing possible sandbox analysis VM usernames 20 IoCs
  • UPX dump on OEP (original entry point) 22 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.

  • UPX packed file 22 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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 18 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\fbd66979ce7f2ce360555a590aa834283bf80e21343f8633e54e088f3f27db1c.exe
    "C:\Users\Admin\AppData\Local\Temp\fbd66979ce7f2ce360555a590aa834283bf80e21343f8633e54e088f3f27db1c.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:368
    • C:\Users\Admin\AppData\Local\Temp\fbd66979ce7f2ce360555a590aa834283bf80e21343f8633e54e088f3f27db1c.exe
      "C:\Users\Admin\AppData\Local\Temp\fbd66979ce7f2ce360555a590aa834283bf80e21343f8633e54e088f3f27db1c.exe"
      2⤵
      • Checks computer location settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4216
      • C:\Users\Admin\AppData\Local\Temp\fbd66979ce7f2ce360555a590aa834283bf80e21343f8633e54e088f3f27db1c.exe
        "C:\Users\Admin\AppData\Local\Temp\fbd66979ce7f2ce360555a590aa834283bf80e21343f8633e54e088f3f27db1c.exe"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:3652
    • C:\Users\Admin\AppData\Local\Temp\fbd66979ce7f2ce360555a590aa834283bf80e21343f8633e54e088f3f27db1c.exe
      "C:\Users\Admin\AppData\Local\Temp\fbd66979ce7f2ce360555a590aa834283bf80e21343f8633e54e088f3f27db1c.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:2400

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\xxx uncut redhair (Anniston,Melissa).mpeg.exe

    Filesize

    1.4MB

    MD5

    9687f9681b2ca4d3c151c4f5071d161c

    SHA1

    3dc57de433935bd706f9db23c2635b860f5880d3

    SHA256

    42bd651a6d99ffbd5359521f41d503e2ad4e1a91c18125720287eb08f34eb5e3

    SHA512

    e28c894bdcaaf22d3d0076379f855f53a5018257554f57f5a6a32f30e02a6c845a13ff0e86ae18148c6b56fd2729a6ac09fb10ae4d4eec427245bef48d61204b

  • memory/368-194-0x0000000000400000-0x000000000041D000-memory.dmp

    Filesize

    116KB

  • memory/368-230-0x0000000000400000-0x000000000041D000-memory.dmp

    Filesize

    116KB

  • memory/368-205-0x0000000000400000-0x000000000041D000-memory.dmp

    Filesize

    116KB

  • memory/368-214-0x0000000000400000-0x000000000041D000-memory.dmp

    Filesize

    116KB

  • memory/368-209-0x0000000000400000-0x000000000041D000-memory.dmp

    Filesize

    116KB

  • memory/368-246-0x0000000000400000-0x000000000041D000-memory.dmp

    Filesize

    116KB

  • memory/368-242-0x0000000000400000-0x000000000041D000-memory.dmp

    Filesize

    116KB

  • memory/368-238-0x0000000000400000-0x000000000041D000-memory.dmp

    Filesize

    116KB

  • memory/368-188-0x0000000000400000-0x000000000041D000-memory.dmp

    Filesize

    116KB

  • memory/368-0-0x0000000000400000-0x000000000041D000-memory.dmp

    Filesize

    116KB

  • memory/368-234-0x0000000000400000-0x000000000041D000-memory.dmp

    Filesize

    116KB

  • memory/368-183-0x0000000000400000-0x000000000041D000-memory.dmp

    Filesize

    116KB

  • memory/368-226-0x0000000000400000-0x000000000041D000-memory.dmp

    Filesize

    116KB

  • memory/368-218-0x0000000000400000-0x000000000041D000-memory.dmp

    Filesize

    116KB

  • memory/368-222-0x0000000000400000-0x000000000041D000-memory.dmp

    Filesize

    116KB

  • memory/2400-174-0x0000000000400000-0x000000000041D000-memory.dmp

    Filesize

    116KB

  • memory/2400-186-0x0000000000400000-0x000000000041D000-memory.dmp

    Filesize

    116KB

  • memory/3652-171-0x0000000000400000-0x000000000041D000-memory.dmp

    Filesize

    116KB

  • memory/3652-185-0x0000000000400000-0x000000000041D000-memory.dmp

    Filesize

    116KB

  • memory/4216-120-0x0000000000400000-0x000000000041D000-memory.dmp

    Filesize

    116KB

  • memory/4216-184-0x0000000000400000-0x000000000041D000-memory.dmp

    Filesize

    116KB