Analysis

  • max time kernel
    144s
  • max time network
    157s
  • platform
    windows7_x64
  • resource
    win7-20220718-en
  • resource tags

    arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
  • submitted
    10-08-2022 09:08

General

  • Target

    ACTA CITATORIA PROCESO 00268379472731.exe

  • Size

    4.1MB

  • MD5

    2b8a731c4a792c330602580f47f0d3f1

  • SHA1

    8472b7f1033877da3b9d032c49effaa71cd22647

  • SHA256

    cbbd0f3fa74e58614002e06976eddfedae41a8d458c5410077e27b030ab31ed6

  • SHA512

    c8871c1f73834534005e7703cae7e431e85616a80e8653f53dbb6e310b4ddf186ee0d037297f0b0aef95b6da16cb81e2129ab36f8b52c25fe1643cf196c50911

Malware Config

Extracted

Family

bitrat

Version

1.38

C2

bendicionespatoelmundo.con-ip.com:3005

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 8 IoCs

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

  • 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 4 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ACTA CITATORIA PROCESO 00268379472731.exe
    "C:\Users\Admin\AppData\Local\Temp\ACTA CITATORIA PROCESO 00268379472731.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1480
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMgAwAA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1368
    • 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:1920

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1368-57-0x0000000000000000-mapping.dmp
  • memory/1368-59-0x0000000070060000-0x000000007060B000-memory.dmp
    Filesize

    5.7MB

  • memory/1368-60-0x0000000070060000-0x000000007060B000-memory.dmp
    Filesize

    5.7MB

  • memory/1368-61-0x0000000070060000-0x000000007060B000-memory.dmp
    Filesize

    5.7MB

  • memory/1480-54-0x00000000009E0000-0x0000000000E00000-memory.dmp
    Filesize

    4.1MB

  • memory/1480-55-0x0000000004DE0000-0x00000000050EC000-memory.dmp
    Filesize

    3.0MB

  • memory/1480-56-0x00000000760F1000-0x00000000760F3000-memory.dmp
    Filesize

    8KB

  • memory/1920-63-0x0000000000400000-0x00000000007E4000-memory.dmp
    Filesize

    3.9MB

  • memory/1920-62-0x0000000000400000-0x00000000007E4000-memory.dmp
    Filesize

    3.9MB

  • memory/1920-65-0x0000000000400000-0x00000000007E4000-memory.dmp
    Filesize

    3.9MB

  • memory/1920-66-0x0000000000400000-0x00000000007E4000-memory.dmp
    Filesize

    3.9MB

  • memory/1920-67-0x00000000007E2750-mapping.dmp
  • memory/1920-68-0x0000000000400000-0x00000000007E4000-memory.dmp
    Filesize

    3.9MB

  • memory/1920-69-0x0000000000400000-0x00000000007E4000-memory.dmp
    Filesize

    3.9MB

  • memory/1920-70-0x0000000000400000-0x00000000007E4000-memory.dmp
    Filesize

    3.9MB

  • memory/1920-72-0x0000000000400000-0x00000000007E4000-memory.dmp
    Filesize

    3.9MB

  • memory/1920-73-0x0000000000400000-0x00000000007E4000-memory.dmp
    Filesize

    3.9MB