Analysis

  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-02-2024 21:41

General

  • Target

    021b477ace5e87113272fd8b16830051.exe

  • Size

    184KB

  • MD5

    021b477ace5e87113272fd8b16830051

  • SHA1

    d55ddb61b67e53245adc5bd12822ea56f1602820

  • SHA256

    e31f4f05884e97c569d6641257f40c4634004565874178c122817538e89948bd

  • SHA512

    ef8c8ff1ff3326848becef2615bd2a629dd1eced13c9b9776d75f3a5cfd2e913324422f806264126befdd0d6908d16be081218ab61fe20ef95111cf9a41c8817

  • SSDEEP

    3072:qUZiBJUB7JXbbkiTIR4JQffGaJNnN7SD+631zmh6Ty1:hiBWBdbkiTIR4ufGaJNnN7SC631zmh6+

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

18.ip.gl.ply.gg:43389

Mutex

4ac5522ba6619835b9ac056e603570c4

Attributes
  • reg_key

    4ac5522ba6619835b9ac056e603570c4

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 35 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe
    "C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5024
    • C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe
      C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe
      2⤵
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:2040
      • C:\Users\Admin\AppData\Local\Temp\server.exe
        "C:\Users\Admin\AppData\Local\Temp\server.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:3108
        • C:\Users\Admin\AppData\Local\Temp\server.exe
          C:\Users\Admin\AppData\Local\Temp\server.exe
          4⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1128
          • C:\Windows\SysWOW64\netsh.exe
            netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
            5⤵
            • Modifies Windows Firewall
            PID:1428
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3540 --field-trial-handle=3088,i,14310325015283915034,7660943942870463106,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:3140

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\021b477ace5e87113272fd8b16830051.exe.log

      Filesize

      224B

      MD5

      9c4b66f77f12558c48b620ddfb44029d

      SHA1

      446651db643b943ec37b9b3599655e211a4bc73e

      SHA256

      42f723d18283fda6a0904046cc29ee8d10e562d20c7615259a46ae9c0e4c9708

      SHA512

      983aed0ec15a79b716ac6dc080146e4ed098c117c31167053fb5971649dc621d1db5292fdd76f3010f094b75d57ea0bdb35bc829c6ba37e4d276b266361dee8e

    • C:\Users\Admin\AppData\Local\Temp\server.exe

      Filesize

      184KB

      MD5

      021b477ace5e87113272fd8b16830051

      SHA1

      d55ddb61b67e53245adc5bd12822ea56f1602820

      SHA256

      e31f4f05884e97c569d6641257f40c4634004565874178c122817538e89948bd

      SHA512

      ef8c8ff1ff3326848becef2615bd2a629dd1eced13c9b9776d75f3a5cfd2e913324422f806264126befdd0d6908d16be081218ab61fe20ef95111cf9a41c8817

    • memory/1128-29-0x0000000074CC0000-0x0000000075271000-memory.dmp

      Filesize

      5.7MB

    • memory/1128-33-0x0000000074CC0000-0x0000000075271000-memory.dmp

      Filesize

      5.7MB

    • memory/1128-32-0x0000000074CC0000-0x0000000075271000-memory.dmp

      Filesize

      5.7MB

    • memory/1128-31-0x00000000015A0000-0x00000000015B0000-memory.dmp

      Filesize

      64KB

    • memory/2040-3-0x0000000000400000-0x000000000040C000-memory.dmp

      Filesize

      48KB

    • memory/2040-6-0x0000000074CC0000-0x0000000075271000-memory.dmp

      Filesize

      5.7MB

    • memory/2040-7-0x00000000018F0000-0x0000000001900000-memory.dmp

      Filesize

      64KB

    • memory/2040-8-0x0000000074CC0000-0x0000000075271000-memory.dmp

      Filesize

      5.7MB

    • memory/2040-22-0x0000000074CC0000-0x0000000075271000-memory.dmp

      Filesize

      5.7MB

    • memory/3108-23-0x0000000074CC0000-0x0000000075271000-memory.dmp

      Filesize

      5.7MB

    • memory/3108-24-0x0000000001000000-0x0000000001010000-memory.dmp

      Filesize

      64KB

    • memory/3108-30-0x0000000074CC0000-0x0000000075271000-memory.dmp

      Filesize

      5.7MB

    • memory/3108-21-0x0000000074CC0000-0x0000000075271000-memory.dmp

      Filesize

      5.7MB

    • memory/5024-0-0x0000000074CC0000-0x0000000075271000-memory.dmp

      Filesize

      5.7MB

    • memory/5024-9-0x0000000074CC0000-0x0000000075271000-memory.dmp

      Filesize

      5.7MB

    • memory/5024-1-0x0000000074CC0000-0x0000000075271000-memory.dmp

      Filesize

      5.7MB

    • memory/5024-2-0x0000000001640000-0x0000000001650000-memory.dmp

      Filesize

      64KB