Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/10/2022, 21:56

General

  • Target
    9228D8C44CDC5CC4D82EC3FE68379C6C5938BC04702CF.exe
  • Size 6.2MB
  • Sample221025-1tb64aeadk
  • SHA256 9228d8c44cdc5cc4d82ec3fe68379c6c5938bc04702cfc86b9b8c96872b52a68
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • njrat

Version
  • Carbonblack2102

Botnet
  • batvoi

C2
  • 1368.vnh.wtf:5552

Mutex
  • 0de45b5c6627a3e65a4b2a1e68ec841b

Attributes
  • reg_key

    0de45b5c6627a3e65a4b2a1e68ec841b

  • splitter

    |'|'|

Signatures

  • Taurus Stealer

    Taurus is an infostealer first seen in June 2020.

  • Taurus Stealer payload 3 IoCs
  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Executes dropped EXE 5 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Drops startup file 2 IoCs
  • Loads dropped DLL 13 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Detects Pyinstaller 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 35 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9228D8C44CDC5CC4D82EC3FE68379C6C5938BC04702CF.exe
    "C:\Users\Admin\AppData\Local\Temp\9228D8C44CDC5CC4D82EC3FE68379C6C5938BC04702CF.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4976
    • C:\Users\Admin\AppData\Local\Temp\ANONX.EXE
      "C:\Users\Admin\AppData\Local\Temp\ANONX.EXE"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:648
      • C:\Users\Admin\AppData\Local\Temp\ANONX.EXE
        "C:\Users\Admin\AppData\Local\Temp\ANONX.EXE"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2468
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c title AnonX -- By MrHacX
          4⤵
            PID:2700
      • C:\Users\Admin\AppData\Local\Temp\WMI PERFORMANCE REVERSE ADAPTER.EXE
        "C:\Users\Admin\AppData\Local\Temp\WMI PERFORMANCE REVERSE ADAPTER.EXE"
        2⤵
        • Executes dropped EXE
        • Checks computer location settings
        • Suspicious use of WriteProcessMemory
        PID:4432
        • C:\Users\Admin\AppData\Local\Temp\WMI Performance Reverse Adapters.exe
          "C:\Users\Admin\AppData\Local\Temp\WMI Performance Reverse Adapters.exe"
          3⤵
          • Executes dropped EXE
          • Drops startup file
          • Adds Run key to start application
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:692
          • C:\Windows\SysWOW64\netsh.exe
            netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\WMI Performance Reverse Adapters.exe" "WMI Performance Reverse Adapters.exe" ENABLE
            4⤵
            • Modifies Windows Firewall
            PID:4168
      • C:\Users\Admin\AppData\Local\Temp\WMI PERFORMANCE REVERSE ADPIRE.EXE
        "C:\Users\Admin\AppData\Local\Temp\WMI PERFORMANCE REVERSE ADPIRE.EXE"
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2040
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\mscorsvw.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\mscorsvw.exe"
          3⤵
            PID:1808
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 1808 -s 196
              4⤵
              • Program crash
              PID:4236
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 1808 -ip 1808
        1⤵
          PID:3484

        Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              ANONX.EXE

              • Path C:\Users\Admin\AppData\Local\Temp\ANONX.EXE
              • Size 5.4MB
              • SHA256 38cdc722edbd753b22d727ff9e9e3408f3502b4eab611084dc07606023317de8
              • MD5 SHA1 SHA512 SSDEEP

              ANONX.EXE

              • Path C:\Users\Admin\AppData\Local\Temp\ANONX.EXE
              • Size 5.4MB
              • SHA256 38cdc722edbd753b22d727ff9e9e3408f3502b4eab611084dc07606023317de8
              • MD5 SHA1 SHA512 SSDEEP

              ANONX.EXE

              • Path C:\Users\Admin\AppData\Local\Temp\ANONX.EXE
              • Size 5.4MB
              • SHA256 38cdc722edbd753b22d727ff9e9e3408f3502b4eab611084dc07606023317de8
              • MD5 SHA1 SHA512 SSDEEP

              WMI PERFORMANCE REVERSE ADAPTER.EXE

              • Path C:\Users\Admin\AppData\Local\Temp\WMI PERFORMANCE REVERSE ADAPTER.EXE
              • Size 23KB
              • SHA256 b94a72f37633262bc036a0ff29cdd2ec4f6f26ea3dee357ef727defeffcea39b
              • MD5 SHA1 SHA512 SSDEEP

              WMI PERFORMANCE REVERSE ADAPTER.EXE

              • Path C:\Users\Admin\AppData\Local\Temp\WMI PERFORMANCE REVERSE ADAPTER.EXE
              • Size 23KB
              • SHA256 b94a72f37633262bc036a0ff29cdd2ec4f6f26ea3dee357ef727defeffcea39b
              • MD5 SHA1 SHA512 SSDEEP

              WMI PERFORMANCE REVERSE ADPIRE.EXE

              • Path C:\Users\Admin\AppData\Local\Temp\WMI PERFORMANCE REVERSE ADPIRE.EXE
              • Size 622KB
              • SHA256 c499e93433a8ff462799108ac5462ce05fa93bf716f3723fbccb7ff13dbebb9f
              • MD5 SHA1 SHA512 SSDEEP

              WMI PERFORMANCE REVERSE ADPIRE.EXE

              • Path C:\Users\Admin\AppData\Local\Temp\WMI PERFORMANCE REVERSE ADPIRE.EXE
              • Size 622KB
              • SHA256 c499e93433a8ff462799108ac5462ce05fa93bf716f3723fbccb7ff13dbebb9f
              • MD5 SHA1 SHA512 SSDEEP

              WMI Performance Reverse Adapters.exe

              • Path C:\Users\Admin\AppData\Local\Temp\WMI Performance Reverse Adapters.exe
              • Size 23KB
              • SHA256 b94a72f37633262bc036a0ff29cdd2ec4f6f26ea3dee357ef727defeffcea39b
              • MD5 SHA1 SHA512 SSDEEP

              WMI Performance Reverse Adapters.exe

              • Path C:\Users\Admin\AppData\Local\Temp\WMI Performance Reverse Adapters.exe
              • Size 23KB
              • SHA256 b94a72f37633262bc036a0ff29cdd2ec4f6f26ea3dee357ef727defeffcea39b
              • MD5 SHA1 SHA512 SSDEEP

              VCRUNTIME140.dll

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI6482\VCRUNTIME140.dll
              • Size 84KB
              • SHA256 1b372f064eacb455a0351863706e6326ca31b08e779a70de5de986b5be8069a1
              • MD5 SHA1 SHA512 SSDEEP

              VCRUNTIME140.dll

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI6482\VCRUNTIME140.dll
              • Size 84KB
              • SHA256 1b372f064eacb455a0351863706e6326ca31b08e779a70de5de986b5be8069a1
              • MD5 SHA1 SHA512 SSDEEP

              _bz2.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI6482\_bz2.pyd
              • Size 71KB
              • SHA256 b94f64fcb49f40682ed794fa1940a1dc0c8a28f24a1768d3bfe774cf75f59b62
              • MD5 SHA1 SHA512 SSDEEP

              _bz2.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI6482\_bz2.pyd
              • Size 71KB
              • SHA256 b94f64fcb49f40682ed794fa1940a1dc0c8a28f24a1768d3bfe774cf75f59b62
              • MD5 SHA1 SHA512 SSDEEP

              _hashlib.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI6482\_hashlib.pyd
              • Size 31KB
              • SHA256 2fcb297733e6080480ac24cf073ff5e239fb02a1ce9694313c5047f9c58d781b
              • MD5 SHA1 SHA512 SSDEEP

              _hashlib.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI6482\_hashlib.pyd
              • Size 31KB
              • SHA256 2fcb297733e6080480ac24cf073ff5e239fb02a1ce9694313c5047f9c58d781b
              • MD5 SHA1 SHA512 SSDEEP

              _lzma.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI6482\_lzma.pyd
              • Size 180KB
              • SHA256 a71366b95d89d1539a6ee751d48a969c1bca1aa75116424cc5f905f32a625eea
              • MD5 SHA1 SHA512 SSDEEP

              _lzma.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI6482\_lzma.pyd
              • Size 180KB
              • SHA256 a71366b95d89d1539a6ee751d48a969c1bca1aa75116424cc5f905f32a625eea
              • MD5 SHA1 SHA512 SSDEEP

              _queue.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI6482\_queue.pyd
              • Size 23KB
              • SHA256 b7ed6dfb6882e8ec4267d9f80cd5b1dc0a43519382fcb72ab5e74c47875c209d
              • MD5 SHA1 SHA512 SSDEEP

              _queue.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI6482\_queue.pyd
              • Size 23KB
              • SHA256 b7ed6dfb6882e8ec4267d9f80cd5b1dc0a43519382fcb72ab5e74c47875c209d
              • MD5 SHA1 SHA512 SSDEEP

              _socket.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI6482\_socket.pyd
              • Size 65KB
              • SHA256 96b0a3cfc16e215f0ef5d1e206f0137b4255005052720e91a58bc98cde8c898e
              • MD5 SHA1 SHA512 SSDEEP

              _socket.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI6482\_socket.pyd
              • Size 65KB
              • SHA256 96b0a3cfc16e215f0ef5d1e206f0137b4255005052720e91a58bc98cde8c898e
              • MD5 SHA1 SHA512 SSDEEP

              _ssl.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI6482\_ssl.pyd
              • Size 102KB
              • SHA256 07ea50e536886f68473635ffefcfcaa7266e63c478ef039ba100ddf02f88ce61
              • MD5 SHA1 SHA512 SSDEEP

              _ssl.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI6482\_ssl.pyd
              • Size 102KB
              • SHA256 07ea50e536886f68473635ffefcfcaa7266e63c478ef039ba100ddf02f88ce61
              • MD5 SHA1 SHA512 SSDEEP

              base_library.zip

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI6482\base_library.zip
              • Size 768KB
              • SHA256 b282d147745176e4949593d1d95809c9d9b178cddac11308c6cf634ed18a8894
              • MD5 SHA1 SHA512 SSDEEP

              libcrypto-1_1.dll

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI6482\libcrypto-1_1.dll
              • Size 2.1MB
              • SHA256 9fefba93fa3300732b7e68fb3b4dbb57bf2726889772a1d0d6694a71820d71f3
              • MD5 SHA1 SHA512 SSDEEP

              libcrypto-1_1.dll

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI6482\libcrypto-1_1.dll
              • Size 2.1MB
              • SHA256 9fefba93fa3300732b7e68fb3b4dbb57bf2726889772a1d0d6694a71820d71f3
              • MD5 SHA1 SHA512 SSDEEP

              libcrypto-1_1.dll

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI6482\libcrypto-1_1.dll
              • Size 2.1MB
              • SHA256 9fefba93fa3300732b7e68fb3b4dbb57bf2726889772a1d0d6694a71820d71f3
              • MD5 SHA1 SHA512 SSDEEP

              libssl-1_1.dll

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI6482\libssl-1_1.dll
              • Size 524KB
              • SHA256 f4d5df50bdf3e7304c67c81ace83263c8d0f0e28087c6104c21150bfeda86b8d
              • MD5 SHA1 SHA512 SSDEEP

              libssl-1_1.dll

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI6482\libssl-1_1.dll
              • Size 524KB
              • SHA256 f4d5df50bdf3e7304c67c81ace83263c8d0f0e28087c6104c21150bfeda86b8d
              • MD5 SHA1 SHA512 SSDEEP

              python37.dll

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI6482\python37.dll
              • Size 3.4MB
              • SHA256 625ca7bb2d34a3986f77c0c5ce572a08febfcacf5050a986507e822ff694dcaa
              • MD5 SHA1 SHA512 SSDEEP

              python37.dll

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI6482\python37.dll
              • Size 3.4MB
              • SHA256 625ca7bb2d34a3986f77c0c5ce572a08febfcacf5050a986507e822ff694dcaa
              • MD5 SHA1 SHA512 SSDEEP

              select.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI6482\select.pyd
              • Size 22KB
              • SHA256 74d8e6a57090ba32cf7c82ad9a275351e421842d6ec94c44adbba629b1893fa7
              • MD5 SHA1 SHA512 SSDEEP

              select.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI6482\select.pyd
              • Size 22KB
              • SHA256 74d8e6a57090ba32cf7c82ad9a275351e421842d6ec94c44adbba629b1893fa7
              • MD5 SHA1 SHA512 SSDEEP

              unicodedata.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI6482\unicodedata.pyd
              • Size 1.0MB
              • SHA256 46876fc52f1529c2633372d8e2cea5b08b5a8582f8645cfad8f5ff8128a7f575
              • MD5 SHA1 SHA512 SSDEEP

              unicodedata.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI6482\unicodedata.pyd
              • Size 1.0MB
              • SHA256 46876fc52f1529c2633372d8e2cea5b08b5a8582f8645cfad8f5ff8128a7f575
              • MD5 SHA1 SHA512 SSDEEP

              memory/692-179-0x0000000004C90000-0x0000000004C9A000-memory.dmp

              memory/1808-189-0x0000000000570000-0x00000000005A7000-memory.dmp

              memory/1808-186-0x0000000000570000-0x00000000005A7000-memory.dmp

              memory/1808-183-0x0000000000570000-0x00000000005A7000-memory.dmp

              memory/2040-174-0x0000000005710000-0x00000000057A2000-memory.dmp

              memory/2040-158-0x0000000000CC0000-0x0000000000D62000-memory.dmp

              memory/2040-169-0x0000000005C10000-0x00000000061B4000-memory.dmp

              memory/2040-180-0x0000000006530000-0x0000000006552000-memory.dmp

              memory/4432-172-0x0000000000EB0000-0x0000000000EBC000-memory.dmp

              memory/4432-173-0x00000000057F0000-0x000000000588C000-memory.dmp