Overview

overview

10

Static

static

10

038e4309bf...9a.exe

windows7_x64

10

038e4309bf...9a.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    152s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    20-05-2022 04:41

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General

  • Target

    038e4309bfb4abdeac86b64093eeac3cce5bb1b7a22d9850c17713a3542f069a.exe

  • Size

    37KB

  • MD5

    145b95efd39cef2d32af0809261b788a

  • SHA1

    094585413da93422445b0f7ba1eb16e42a349837

  • SHA256

    038e4309bfb4abdeac86b64093eeac3cce5bb1b7a22d9850c17713a3542f069a

  • SHA512

    4754164a7324ba148f817c6510c1c0f5773bab814e49be186bc2c232e2f558e19908fd50133955c7d6d70292ea6c414c76b014417e430153b6bc5f5a12ace842

Score
10/10
njrathackedevasionpersistencetrojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

HacKed

C2

kamenshik222.hopto.org:1604

Mutex

d36b0d643b8950fbdfbfedccba217a77

Attributes
  • reg_key

    d36b0d643b8950fbdfbfedccba217a77

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat
  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs
    evasion
  • Checks computer location settings 2 TTPs 1 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
    persistence
  • Drops autorun.inf file 1 TTPs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Enumerates physical storage devices 1 TTPs

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

  • Kills process with taskkill 1 IoCs
    evasion
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 18 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\038e4309bfb4abdeac86b64093eeac3cce5bb1b7a22d9850c17713a3542f069a.exe
    "C:\Users\Admin\AppData\Local\Temp\038e4309bfb4abdeac86b64093eeac3cce5bb1b7a22d9850c17713a3542f069a.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1476
    • C:\Users\Admin\AppData\Local\Temp\svchost.exe
      "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2516
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\svchost.exe" "svchost.exe" ENABLE
        3⤵
          PID:3268
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /F /IM WindiwsDefender
          3⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:5012

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Replication Through Removable Media

    1
    T1091

    Execution

    Persistence

    Modify Existing Service

    1
    T1031

    Registry Run Keys / Startup Folder

    1
    T1060

    Privilege Escalation

    Defense Evasion

    Modify Registry

    1
    T1112

    Credential Access

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    2
    T1082

    Lateral Movement

    Replication Through Removable Media

    1
    T1091

    Collection

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

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    Downloads

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

      37KB

      MD5

      145b95efd39cef2d32af0809261b788a

      SHA1

      094585413da93422445b0f7ba1eb16e42a349837

      SHA256

      038e4309bfb4abdeac86b64093eeac3cce5bb1b7a22d9850c17713a3542f069a

      SHA512

      4754164a7324ba148f817c6510c1c0f5773bab814e49be186bc2c232e2f558e19908fd50133955c7d6d70292ea6c414c76b014417e430153b6bc5f5a12ace842

      Download Submit
    • C:\Users\Admin\AppData\Local\Temp\svchost.exe
      Filesize

      37KB

      MD5

      145b95efd39cef2d32af0809261b788a

      SHA1

      094585413da93422445b0f7ba1eb16e42a349837

      SHA256

      038e4309bfb4abdeac86b64093eeac3cce5bb1b7a22d9850c17713a3542f069a

      SHA512

      4754164a7324ba148f817c6510c1c0f5773bab814e49be186bc2c232e2f558e19908fd50133955c7d6d70292ea6c414c76b014417e430153b6bc5f5a12ace842

      Download Submit
    • memory/1476-130-0x0000000074C00000-0x00000000751B1000-memory.dmp
      Filesize

      5.7MB

      Download
    • memory/2516-131-0x0000000000000000-mapping.dmp
      Download
    • memory/2516-134-0x0000000074C00000-0x00000000751B1000-memory.dmp
      Filesize

      5.7MB

      Download
    • memory/3268-135-0x0000000000000000-mapping.dmp
      Download
    • memory/5012-136-0x0000000000000000-mapping.dmp
      Download