Analysis

  • max time kernel
    146s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    16-11-2022 18:00

General

  • Target

    siparis.scr.exe

  • Size

    11KB

  • MD5

    feceb2ae0c628f6e7a6da6b029182864

  • SHA1

    1932702f8a920893a470bbbd02d788cdf7cac52a

  • SHA256

    8be298e99ae5cf904714dbfe1df10a43b948130a5e08b494e4196665d9047b74

  • SHA512

    386e558190d4dff8af841c1c94dc010212048d058151187201d9fa40d42e969b7c77696e7b47fac4f4d7906090a42eff37d8bc8c45d1060c22e2f5d975bb5eee

  • SSDEEP

    192:onc1utNkXRDmQCa3F1mGQ8Or3O1TTgJMRqIcuuukbrP:P1uvkXRga3Qn6TEKRA

Malware Config

Extracted

Family

bitrat

Version

1.38

C2

37.139.128.233:3569

Attributes
  • communication_password

    ce952068942604a6d6df06ed5002fad6

  • 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 5 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.

  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\siparis.scr.exe
    "C:\Users\Admin\AppData\Local\Temp\siparis.scr.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1652
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAANQAwAA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1500
    • C:\Users\Admin\AppData\Local\Temp\siparis.scr.exe
      C:\Users\Admin\AppData\Local\Temp\siparis.scr.exe
      2⤵
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:688

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

2
T1112

Install Root Certificate

1
T1130

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/688-75-0x000000000068A488-mapping.dmp
  • memory/688-77-0x0000000000400000-0x00000000007CE000-memory.dmp
    Filesize

    3.8MB

  • memory/688-67-0x0000000000400000-0x00000000007CE000-memory.dmp
    Filesize

    3.8MB

  • memory/688-69-0x0000000000400000-0x00000000007CE000-memory.dmp
    Filesize

    3.8MB

  • memory/688-83-0x0000000000100000-0x000000000010A000-memory.dmp
    Filesize

    40KB

  • memory/688-82-0x0000000000400000-0x00000000007CE000-memory.dmp
    Filesize

    3.8MB

  • memory/688-81-0x0000000000100000-0x000000000010A000-memory.dmp
    Filesize

    40KB

  • memory/688-62-0x0000000000400000-0x00000000007CE000-memory.dmp
    Filesize

    3.8MB

  • memory/688-63-0x0000000000400000-0x00000000007CE000-memory.dmp
    Filesize

    3.8MB

  • memory/688-71-0x0000000000400000-0x00000000007CE000-memory.dmp
    Filesize

    3.8MB

  • memory/688-80-0x0000000000100000-0x000000000010A000-memory.dmp
    Filesize

    40KB

  • memory/688-84-0x0000000000100000-0x000000000010A000-memory.dmp
    Filesize

    40KB

  • memory/688-65-0x0000000000400000-0x00000000007CE000-memory.dmp
    Filesize

    3.8MB

  • memory/688-72-0x0000000000400000-0x00000000007CE000-memory.dmp
    Filesize

    3.8MB

  • memory/688-74-0x0000000000400000-0x00000000007CE000-memory.dmp
    Filesize

    3.8MB

  • memory/688-79-0x0000000000400000-0x00000000007CE000-memory.dmp
    Filesize

    3.8MB

  • memory/1500-61-0x000000006E360000-0x000000006E90B000-memory.dmp
    Filesize

    5.7MB

  • memory/1500-60-0x000000006E360000-0x000000006E90B000-memory.dmp
    Filesize

    5.7MB

  • memory/1500-59-0x000000006E360000-0x000000006E90B000-memory.dmp
    Filesize

    5.7MB

  • memory/1500-57-0x0000000000000000-mapping.dmp
  • memory/1652-55-0x0000000076041000-0x0000000076043000-memory.dmp
    Filesize

    8KB

  • memory/1652-54-0x0000000000BA0000-0x0000000000BA8000-memory.dmp
    Filesize

    32KB

  • memory/1652-56-0x000000000B7B0000-0x000000000BB7C000-memory.dmp
    Filesize

    3.8MB