Analysis

  • max time kernel
    144s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-09-2022 06:09

General

  • Target

    PDF DE ARTICULO ACT.exe

  • Size

    3.4MB

  • MD5

    67354a1860bc2e6b3ff13f3f7d90343e

  • SHA1

    681da75526970d006bcbcd5fc8c6e222d4b43953

  • SHA256

    46fff582a4bd61053e727f7a77d66eab7a7c536acf3f000ad9c1721ac27949d3

  • SHA512

    eb712361877b34b541ba70bf1899ff48186a8e0c17a0b8730816ab9e7e8c9975cf7d7ad6d26e17598208f224aaa1a87996acc106e36382516c69db2c821ae868

  • SSDEEP

    98304:53coRwOlNGMJilYMLGwxEfBHnj9OB3f3:9coRwOPDJTMqcABHnj9U

Malware Config

Extracted

Family

bitrat

Version

1.38

C2

bendicion777.con-ip.com:7777

Attributes
  • communication_password

    202cb962ac59075b964b07152d234b70

  • tor_process

    tor

Signatures

  • BitRAT

    BitRAT is a remote access tool written in C++ and uses leaked source code from other families.

  • UPX packed file 6 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PDF DE ARTICULO ACT.exe
    "C:\Users\Admin\AppData\Local\Temp\PDF DE ARTICULO ACT.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4588
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMQAwAA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:540
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
      2⤵
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:4812

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/540-134-0x0000000000000000-mapping.dmp

  • memory/540-135-0x0000000002C40000-0x0000000002C76000-memory.dmp

    Filesize

    216KB

  • memory/540-136-0x0000000005470000-0x0000000005A98000-memory.dmp

    Filesize

    6.2MB

  • memory/540-137-0x00000000053E0000-0x0000000005446000-memory.dmp

    Filesize

    408KB

  • memory/540-138-0x0000000005BD0000-0x0000000005C36000-memory.dmp

    Filesize

    408KB

  • memory/540-139-0x0000000006210000-0x000000000622E000-memory.dmp

    Filesize

    120KB

  • memory/540-140-0x0000000007A60000-0x00000000080DA000-memory.dmp

    Filesize

    6.5MB

  • memory/540-141-0x0000000006710000-0x000000000672A000-memory.dmp

    Filesize

    104KB

  • memory/4588-132-0x0000000000A20000-0x0000000000D7C000-memory.dmp

    Filesize

    3.4MB

  • memory/4588-133-0x0000000005830000-0x0000000005852000-memory.dmp

    Filesize

    136KB

  • memory/4812-144-0x0000000000400000-0x00000000007E4000-memory.dmp

    Filesize

    3.9MB

  • memory/4812-149-0x0000000075400000-0x0000000075439000-memory.dmp

    Filesize

    228KB

  • memory/4812-142-0x0000000000000000-mapping.dmp

  • memory/4812-145-0x0000000000400000-0x00000000007E4000-memory.dmp

    Filesize

    3.9MB

  • memory/4812-146-0x0000000000400000-0x00000000007E4000-memory.dmp

    Filesize

    3.9MB

  • memory/4812-147-0x0000000000400000-0x00000000007E4000-memory.dmp

    Filesize

    3.9MB

  • memory/4812-148-0x0000000075080000-0x00000000750B9000-memory.dmp

    Filesize

    228KB

  • memory/4812-143-0x0000000000400000-0x00000000007E4000-memory.dmp

    Filesize

    3.9MB

  • memory/4812-150-0x0000000000400000-0x00000000007E4000-memory.dmp

    Filesize

    3.9MB

  • memory/4812-151-0x0000000075400000-0x0000000075439000-memory.dmp

    Filesize

    228KB

  • memory/4812-152-0x0000000075400000-0x0000000075439000-memory.dmp

    Filesize

    228KB

  • memory/4812-153-0x0000000075080000-0x00000000750B9000-memory.dmp

    Filesize

    228KB

  • memory/4812-154-0x0000000075400000-0x0000000075439000-memory.dmp

    Filesize

    228KB

  • memory/4812-155-0x0000000075400000-0x0000000075439000-memory.dmp

    Filesize

    228KB

  • memory/4812-156-0x0000000075400000-0x0000000075439000-memory.dmp

    Filesize

    228KB