Analysis

  • max time kernel
    142s
  • max time network
    124s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    30-12-2021 07:41

General

  • Target

    5a6bf2c5bcad6098f5eed902fd2ab165.exe

  • Size

    2.6MB

  • MD5

    5a6bf2c5bcad6098f5eed902fd2ab165

  • SHA1

    169330abce1185aad9001fd590f8ea6952234a85

  • SHA256

    06d093a1f7775df0391176bdee9e23b9856f95e0baa25c9d271e1854094235a2

  • SHA512

    15821189aa69e7a35c6368c0898c7532f9cf43287ba4c6ace4c09885a2d175b9fbafc0cd6b463bfbc2ca721f1463a3904800fcee1133093d4802235072de35c1

Malware Config

Extracted

Family

bitrat

Version

1.38

C2

178.20.40.235:7777

Attributes
  • communication_password

    90518ace97affc6b80a96099c2928d6a

  • install_dir

    Temp

  • install_file

    $77lsass.exe

  • tor_process

    tor

Signatures

  • BitRAT

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 7 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5a6bf2c5bcad6098f5eed902fd2ab165.exe
    "C:\Users\Admin\AppData\Local\Temp\5a6bf2c5bcad6098f5eed902fd2ab165.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2728
    • C:\Users\Admin\AppData\Local\Temp\5a6bf2c5bcad6098f5eed902fd2ab165.exe
      "C:\Users\Admin\AppData\Local\Temp\5a6bf2c5bcad6098f5eed902fd2ab165.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:3960

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2728-135-0x000000000094A000-0x000000000094C000-memory.dmp
    Filesize

    8KB

  • memory/2728-153-0x0000000000850000-0x0000000000852000-memory.dmp
    Filesize

    8KB

  • memory/2728-119-0x000000000093C000-0x000000000093E000-memory.dmp
    Filesize

    8KB

  • memory/2728-117-0x000000000093C000-0x000000000093E000-memory.dmp
    Filesize

    8KB

  • memory/2728-121-0x00000000007F0000-0x00000000007F1000-memory.dmp
    Filesize

    4KB

  • memory/2728-122-0x000000000093E000-0x0000000000943000-memory.dmp
    Filesize

    20KB

  • memory/2728-123-0x000000000093E000-0x0000000000943000-memory.dmp
    Filesize

    20KB

  • memory/2728-124-0x000000000093C000-0x000000000093E000-memory.dmp
    Filesize

    8KB

  • memory/2728-125-0x0000000000947000-0x000000000094A000-memory.dmp
    Filesize

    12KB

  • memory/2728-126-0x0000000000947000-0x000000000094A000-memory.dmp
    Filesize

    12KB

  • memory/2728-127-0x000000000093E000-0x0000000000943000-memory.dmp
    Filesize

    20KB

  • memory/2728-128-0x000000000094A000-0x000000000094C000-memory.dmp
    Filesize

    8KB

  • memory/2728-129-0x000000000094A000-0x000000000094C000-memory.dmp
    Filesize

    8KB

  • memory/2728-130-0x0000000000947000-0x000000000094A000-memory.dmp
    Filesize

    12KB

  • memory/2728-131-0x0000000000947000-0x000000000094A000-memory.dmp
    Filesize

    12KB

  • memory/2728-132-0x0000000000947000-0x000000000094A000-memory.dmp
    Filesize

    12KB

  • memory/2728-133-0x000000000094A000-0x000000000094C000-memory.dmp
    Filesize

    8KB

  • memory/2728-134-0x000000000094A000-0x000000000094C000-memory.dmp
    Filesize

    8KB

  • memory/2728-120-0x000000000093C000-0x000000000093E000-memory.dmp
    Filesize

    8KB

  • memory/2728-118-0x000000000093C000-0x000000000093E000-memory.dmp
    Filesize

    8KB

  • memory/2728-139-0x000000000094A000-0x000000000094C000-memory.dmp
    Filesize

    8KB

  • memory/2728-138-0x0000000000947000-0x000000000094A000-memory.dmp
    Filesize

    12KB

  • memory/2728-140-0x000000000094A000-0x000000000094C000-memory.dmp
    Filesize

    8KB

  • memory/2728-141-0x000000000094A000-0x000000000094C000-memory.dmp
    Filesize

    8KB

  • memory/2728-142-0x0000000000947000-0x000000000094A000-memory.dmp
    Filesize

    12KB

  • memory/2728-143-0x0000000000947000-0x000000000094A000-memory.dmp
    Filesize

    12KB

  • memory/2728-144-0x0000000000947000-0x000000000094A000-memory.dmp
    Filesize

    12KB

  • memory/2728-145-0x000000000094A000-0x000000000094C000-memory.dmp
    Filesize

    8KB

  • memory/2728-146-0x000000000094A000-0x000000000094C000-memory.dmp
    Filesize

    8KB

  • memory/2728-147-0x000000000094A000-0x000000000094C000-memory.dmp
    Filesize

    8KB

  • memory/2728-148-0x0000000000947000-0x000000000094A000-memory.dmp
    Filesize

    12KB

  • memory/2728-149-0x0000000000947000-0x000000000094A000-memory.dmp
    Filesize

    12KB

  • memory/2728-150-0x0000000000947000-0x000000000094A000-memory.dmp
    Filesize

    12KB

  • memory/2728-136-0x0000000000947000-0x000000000094A000-memory.dmp
    Filesize

    12KB

  • memory/3960-154-0x0000000000400000-0x00000000007CE000-memory.dmp
    Filesize

    3.8MB

  • memory/3960-152-0x000000000068A488-mapping.dmp
  • memory/3960-155-0x0000000000030000-0x0000000000031000-memory.dmp
    Filesize

    4KB