Analysis

  • max time kernel
    152s
  • max time network
    176s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-10-2022 22:57

General

  • Target

    a447e84ff39b927c6b677fb025f89736fdc9bdeb613eed4674956f1ca800ccbb.exe

  • Size

    4.5MB

  • MD5

    1f5c1e925be09de49aa530db5c4435cd

  • SHA1

    2bc7eba78ec71016fd77124fd5e05b7557c44b88

  • SHA256

    a447e84ff39b927c6b677fb025f89736fdc9bdeb613eed4674956f1ca800ccbb

  • SHA512

    103c71945bbdfdb2bc0f210df17c8dbd745ec664a087e8f710beb8e18deb94e3b1f11ffa650af8ac29cc8fe8f5d1fbb8f5e53be60b742931f3d46a6b7ea2dc15

  • SSDEEP

    24576:7/MKK/93NT6JtkKM5Xqix7Z4hwinQh6LhZGGNtSzGmzS+op1jHZP4qukK0PeXAyh:16

Malware Config

Extracted

Family

bitrat

Version

1.38

C2

sddvniduchdj.con-ip.com:1880

Attributes
  • communication_password

    202cb962ac59075b964b07152d234b70

  • install_dir

    AppData

  • install_file

    Discord.exe

  • 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 4 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a447e84ff39b927c6b677fb025f89736fdc9bdeb613eed4674956f1ca800ccbb.exe
    "C:\Users\Admin\AppData\Local\Temp\a447e84ff39b927c6b677fb025f89736fdc9bdeb613eed4674956f1ca800ccbb.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4900
    • 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:4828
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
      2⤵
        PID:1828
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
        2⤵
        • Adds Run key to start application
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:4804

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1828-142-0x0000000000000000-mapping.dmp

    • memory/4804-147-0x0000000000400000-0x00000000007E4000-memory.dmp

      Filesize

      3.9MB

    • memory/4804-146-0x0000000000400000-0x00000000007E4000-memory.dmp

      Filesize

      3.9MB

    • memory/4804-143-0x0000000000000000-mapping.dmp

    • memory/4804-145-0x0000000000400000-0x00000000007E4000-memory.dmp

      Filesize

      3.9MB

    • memory/4804-144-0x0000000000400000-0x00000000007E4000-memory.dmp

      Filesize

      3.9MB

    • memory/4804-153-0x0000000074410000-0x0000000074449000-memory.dmp

      Filesize

      228KB

    • memory/4804-152-0x0000000074410000-0x0000000074449000-memory.dmp

      Filesize

      228KB

    • memory/4804-151-0x0000000000400000-0x00000000007E4000-memory.dmp

      Filesize

      3.9MB

    • memory/4804-150-0x0000000074410000-0x0000000074449000-memory.dmp

      Filesize

      228KB

    • memory/4804-149-0x0000000074750000-0x0000000074789000-memory.dmp

      Filesize

      228KB

    • memory/4804-148-0x0000000000400000-0x00000000007E4000-memory.dmp

      Filesize

      3.9MB

    • memory/4828-139-0x0000000005FF0000-0x000000000600E000-memory.dmp

      Filesize

      120KB

    • memory/4828-136-0x00000000057E0000-0x0000000005E08000-memory.dmp

      Filesize

      6.2MB

    • memory/4828-137-0x0000000005F70000-0x0000000005FD6000-memory.dmp

      Filesize

      408KB

    • memory/4828-135-0x0000000002D70000-0x0000000002DA6000-memory.dmp

      Filesize

      216KB

    • memory/4828-141-0x0000000006B80000-0x0000000006B9A000-memory.dmp

      Filesize

      104KB

    • memory/4828-140-0x0000000007E90000-0x000000000850A000-memory.dmp

      Filesize

      6.5MB

    • memory/4828-134-0x0000000000000000-mapping.dmp

    • memory/4828-138-0x0000000006050000-0x00000000060B6000-memory.dmp

      Filesize

      408KB

    • memory/4900-132-0x0000000000070000-0x00000000004EE000-memory.dmp

      Filesize

      4.5MB

    • memory/4900-133-0x0000000006D80000-0x0000000006DA2000-memory.dmp

      Filesize

      136KB