Overview

overview

10

Static

static

10

086d0beffb...cc.exe

windows7_x64

10

086d0beffb...cc.exe

windows10-2004_x64

1

Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20220331-en
  • submitted
    07-04-2022 09:27

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General

  • Target

    086d0beffb9ac2f9e7c502496dfffacc.exe

  • Size

    37KB

  • MD5

    086d0beffb9ac2f9e7c502496dfffacc

  • SHA1

    8ab427c8509c644b276db5edca504bd739eb135e

  • SHA256

    266dc410718f70b5c26f84779f65f09d0d6d73cc8404285dd4e0d48a90959c5e

  • SHA512

    be8ad234c1aab5619107bb27b8f6905629b435062e56189472f602d51363c16a65ca6be5bbc0282ccac6044be4e4c377eae393f1ff823d4d2bb3cbb11639c9b2

Score
10/10
njrathackevasionpersistencetrojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

hack

C2

6.tcp.ngrok.io:13420

Mutex

2bafb35469254e19405da7b6b658f17c

Attributes
  • reg_key

    2bafb35469254e19405da7b6b658f17c

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat
  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs
    evasion
  • Drops startup file 2 IoCs
  • Loads dropped DLL 1 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.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 19 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\086d0beffb9ac2f9e7c502496dfffacc.exe
    "C:\Users\Admin\AppData\Local\Temp\086d0beffb9ac2f9e7c502496dfffacc.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1220
    • C:\Users\Admin\AppData\Roaming\System.exe
      "C:\Users\Admin\AppData\Roaming\System.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:1204
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\System.exe" "System.exe" ENABLE
        3⤵
          PID:1732

    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

    System Information Discovery

    1
    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\Roaming\System.exe
      Filesize

      37KB

      MD5

      086d0beffb9ac2f9e7c502496dfffacc

      SHA1

      8ab427c8509c644b276db5edca504bd739eb135e

      SHA256

      266dc410718f70b5c26f84779f65f09d0d6d73cc8404285dd4e0d48a90959c5e

      SHA512

      be8ad234c1aab5619107bb27b8f6905629b435062e56189472f602d51363c16a65ca6be5bbc0282ccac6044be4e4c377eae393f1ff823d4d2bb3cbb11639c9b2

      Download Submit
    • C:\Users\Admin\AppData\Roaming\System.exe
      Filesize

      37KB

      MD5

      086d0beffb9ac2f9e7c502496dfffacc

      SHA1

      8ab427c8509c644b276db5edca504bd739eb135e

      SHA256

      266dc410718f70b5c26f84779f65f09d0d6d73cc8404285dd4e0d48a90959c5e

      SHA512

      be8ad234c1aab5619107bb27b8f6905629b435062e56189472f602d51363c16a65ca6be5bbc0282ccac6044be4e4c377eae393f1ff823d4d2bb3cbb11639c9b2

      Download Submit
    • \Users\Admin\AppData\Roaming\System.exe
      Filesize

      37KB

      MD5

      086d0beffb9ac2f9e7c502496dfffacc

      SHA1

      8ab427c8509c644b276db5edca504bd739eb135e

      SHA256

      266dc410718f70b5c26f84779f65f09d0d6d73cc8404285dd4e0d48a90959c5e

      SHA512

      be8ad234c1aab5619107bb27b8f6905629b435062e56189472f602d51363c16a65ca6be5bbc0282ccac6044be4e4c377eae393f1ff823d4d2bb3cbb11639c9b2

      Download Submit
    • memory/1204-57-0x0000000000000000-mapping.dmp
      Download
    • memory/1204-61-0x0000000074870000-0x0000000074E1B000-memory.dmp
      Filesize

      5.7MB

      Download
    • memory/1220-54-0x0000000075901000-0x0000000075903000-memory.dmp
      Filesize

      8KB

      Download
    • memory/1220-55-0x0000000074870000-0x0000000074E1B000-memory.dmp
      Filesize

      5.7MB

      Download
    • memory/1732-62-0x0000000000000000-mapping.dmp
      Download