Analysis

  • max time kernel
    121s
  • max time network
    189s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    25-05-2022 02:17

General

  • Target

    0df3ade3af4c875ce8e834ad1c4e8052148173d8d95e757454279454a11c311f.exe

  • Size

    4.8MB

  • MD5

    b34ac778e2e106c5d747e6f33f01a863

  • SHA1

    c17521f2ddb2a538158ce7f9cc44ada2f61c40aa

  • SHA256

    0df3ade3af4c875ce8e834ad1c4e8052148173d8d95e757454279454a11c311f

  • SHA512

    cee1861805d3875073410722e728570b185d5701a16d6c32c7adc54d2ad6e633f08dbc709f71ea3fbc151eb824830d6fb2ff63d08a3ccf4f15b74dc26da05c0f

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

System

C2

videobabshering.ru:3389

Mutex

b21bc800264adb97f1965cc7df1cb800

Attributes
  • reg_key

    b21bc800264adb97f1965cc7df1cb800

  • splitter

    Y262SUCZ4UJJ

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Executes dropped EXE 3 IoCs
  • Modifies Windows Firewall 1 TTPs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Drops startup file 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in Program Files directory 12 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0df3ade3af4c875ce8e834ad1c4e8052148173d8d95e757454279454a11c311f.exe
    "C:\Users\Admin\AppData\Local\Temp\0df3ade3af4c875ce8e834ad1c4e8052148173d8d95e757454279454a11c311f.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3076
    • C:\Users\Admin\AppData\Local\Temp\System.exe
      "C:\Users\Admin\AppData\Local\Temp\System.exe"
      2⤵
      • Executes dropped EXE
      • Checks computer location settings
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4576
      • C:\Windows\System.exe
        "C:\Windows\System.exe"
        3⤵
        • Executes dropped EXE
        • Drops startup file
        • Adds Run key to start application
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4588
        • C:\Windows\SysWOW64\netsh.exe
          netsh firewall add allowedprogram "C:\Windows\System.exe" "System.exe" ENABLE
          4⤵
            PID:2396
      • C:\Users\Admin\AppData\Local\Temp\Warface.exe
        "C:\Users\Admin\AppData\Local\Temp\Warface.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:3656
    • C:\Program Files\Java\jre1.8.0_66\bin\javaw.exe
      "C:\Program Files\Java\jre1.8.0_66\bin\javaw.exe" -Dfile.encoding=UTF-8 -classpath "C:\Users\Admin\AppData\Local\Temp\Warface.exe" org.develnext.jphp.ext.javafx.FXLauncher
      1⤵
      • Drops file in Program Files directory
      PID:2624

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Persistence

    Modify Existing Service

    1
    T1031

    Registry Run Keys / Startup Folder

    1
    T1060

    Defense Evasion

    Modify Registry

    1
    T1112

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    2
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\System.exe
      Filesize

      31KB

      MD5

      00850380b4844288abf6be0dfb391865

      SHA1

      bc4ec977aeacb084b50ff392868d49470ecfe841

      SHA256

      d58947ddc3ed978e0d4223382d8dc090bc69b41de5bf90ddf2885e708b8ee1d0

      SHA512

      4436c9eca2422ccc7f57cd3ff3b390c9d852e3ea10fe036b54cc2fabbcb00e459700d06fc254bb61067365348e2984d74e651cbc35a8d8036458c8f180776ad9

    • C:\Users\Admin\AppData\Local\Temp\System.exe
      Filesize

      31KB

      MD5

      00850380b4844288abf6be0dfb391865

      SHA1

      bc4ec977aeacb084b50ff392868d49470ecfe841

      SHA256

      d58947ddc3ed978e0d4223382d8dc090bc69b41de5bf90ddf2885e708b8ee1d0

      SHA512

      4436c9eca2422ccc7f57cd3ff3b390c9d852e3ea10fe036b54cc2fabbcb00e459700d06fc254bb61067365348e2984d74e651cbc35a8d8036458c8f180776ad9

    • C:\Users\Admin\AppData\Local\Temp\Warface.exe
      Filesize

      4.7MB

      MD5

      5b8b41957540a193c2d3e4849a3c1c44

      SHA1

      f558fb2ff08f93cfe3441b7637a19cebde13d3c3

      SHA256

      2bf0d866559c542912f42e23325e140b3af0fce4da8e4e4f965104ac44e54efe

      SHA512

      cd51a483d444095426f9731e55565aa2b791ccd2cd5fe1ac1d7ff69c32bf611b0ae7c6d9bc452637ee4a82e5cc03452ad7d6137b3a94d6754362bb904224f6f8

    • C:\Users\Admin\AppData\Local\Temp\Warface.exe
      Filesize

      4.7MB

      MD5

      5b8b41957540a193c2d3e4849a3c1c44

      SHA1

      f558fb2ff08f93cfe3441b7637a19cebde13d3c3

      SHA256

      2bf0d866559c542912f42e23325e140b3af0fce4da8e4e4f965104ac44e54efe

      SHA512

      cd51a483d444095426f9731e55565aa2b791ccd2cd5fe1ac1d7ff69c32bf611b0ae7c6d9bc452637ee4a82e5cc03452ad7d6137b3a94d6754362bb904224f6f8

    • C:\Windows\System.exe
      Filesize

      31KB

      MD5

      00850380b4844288abf6be0dfb391865

      SHA1

      bc4ec977aeacb084b50ff392868d49470ecfe841

      SHA256

      d58947ddc3ed978e0d4223382d8dc090bc69b41de5bf90ddf2885e708b8ee1d0

      SHA512

      4436c9eca2422ccc7f57cd3ff3b390c9d852e3ea10fe036b54cc2fabbcb00e459700d06fc254bb61067365348e2984d74e651cbc35a8d8036458c8f180776ad9

    • C:\Windows\System.exe
      Filesize

      31KB

      MD5

      00850380b4844288abf6be0dfb391865

      SHA1

      bc4ec977aeacb084b50ff392868d49470ecfe841

      SHA256

      d58947ddc3ed978e0d4223382d8dc090bc69b41de5bf90ddf2885e708b8ee1d0

      SHA512

      4436c9eca2422ccc7f57cd3ff3b390c9d852e3ea10fe036b54cc2fabbcb00e459700d06fc254bb61067365348e2984d74e651cbc35a8d8036458c8f180776ad9

    • memory/2396-152-0x0000000000000000-mapping.dmp
    • memory/2624-162-0x0000000002950000-0x0000000003950000-memory.dmp
      Filesize

      16.0MB

    • memory/2624-165-0x0000000002950000-0x0000000003950000-memory.dmp
      Filesize

      16.0MB

    • memory/2624-169-0x0000000002950000-0x0000000003950000-memory.dmp
      Filesize

      16.0MB

    • memory/2624-136-0x0000000000000000-mapping.dmp
    • memory/2624-168-0x0000000002950000-0x0000000003950000-memory.dmp
      Filesize

      16.0MB

    • memory/2624-167-0x0000000002950000-0x0000000003950000-memory.dmp
      Filesize

      16.0MB

    • memory/2624-166-0x0000000002950000-0x0000000003950000-memory.dmp
      Filesize

      16.0MB

    • memory/2624-159-0x0000000002950000-0x0000000003950000-memory.dmp
      Filesize

      16.0MB

    • memory/2624-142-0x0000000002950000-0x0000000003950000-memory.dmp
      Filesize

      16.0MB

    • memory/2624-164-0x0000000002950000-0x0000000003950000-memory.dmp
      Filesize

      16.0MB

    • memory/3656-133-0x0000000000000000-mapping.dmp
    • memory/4576-130-0x0000000000000000-mapping.dmp
    • memory/4576-137-0x0000000073D30000-0x00000000742E1000-memory.dmp
      Filesize

      5.7MB

    • memory/4588-151-0x0000000073D30000-0x00000000742E1000-memory.dmp
      Filesize

      5.7MB

    • memory/4588-148-0x0000000000000000-mapping.dmp