Overview

overview

10

Static

static

10

72CA3E2F84...27.exe

windows7_x64

10

72CA3E2F84...27.exe

windows10_x64

10

Analysis

  • max time kernel
    151s
  • max time network
    154s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    14-01-2022 13:54

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General

  • Target

    72CA3E2F8479A075C8E089F543F79C4F1CF868D66D327.exe

  • Size

    37KB

  • MD5

    70aca878bfaac1eaf7019eddd97fc877

  • SHA1

    4997c055b582c71cbb3863c9523986b51a339797

  • SHA256

    72ca3e2f8479a075c8e089f543f79c4f1cf868d66d3272b2e6b0f0fded1bdb60

  • SHA512

    17bedcd516ba8f18b5e4d8a2a8c9d1b6e95be2158d654b3b15fe2d379cdce682c609801e1b5c01487fa732ef1591d7cde1460448ffd4ffe8a50f6c3c82cb36c2

Score
10/10
njrathackedevasionpersistencetrojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

HacKed

C2

0.tcp.ngrok.io:13467

Mutex

9156ea52d892a71a5c604fdd4141de82

Attributes
  • reg_key

    9156ea52d892a71a5c604fdd4141de82

  • 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
  • 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 33 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\72CA3E2F8479A075C8E089F543F79C4F1CF868D66D327.exe
    "C:\Users\Admin\AppData\Local\Temp\72CA3E2F8479A075C8E089F543F79C4F1CF868D66D327.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1296
    • 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:864
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\System.exe" "System.exe" ENABLE
        3⤵
          PID:1892

    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
      MD5

      70aca878bfaac1eaf7019eddd97fc877

      SHA1

      4997c055b582c71cbb3863c9523986b51a339797

      SHA256

      72ca3e2f8479a075c8e089f543f79c4f1cf868d66d3272b2e6b0f0fded1bdb60

      SHA512

      17bedcd516ba8f18b5e4d8a2a8c9d1b6e95be2158d654b3b15fe2d379cdce682c609801e1b5c01487fa732ef1591d7cde1460448ffd4ffe8a50f6c3c82cb36c2

      Download Submit
    • C:\Users\Admin\AppData\Roaming\System.exe
      MD5

      70aca878bfaac1eaf7019eddd97fc877

      SHA1

      4997c055b582c71cbb3863c9523986b51a339797

      SHA256

      72ca3e2f8479a075c8e089f543f79c4f1cf868d66d3272b2e6b0f0fded1bdb60

      SHA512

      17bedcd516ba8f18b5e4d8a2a8c9d1b6e95be2158d654b3b15fe2d379cdce682c609801e1b5c01487fa732ef1591d7cde1460448ffd4ffe8a50f6c3c82cb36c2

      Download Submit
    • memory/864-116-0x0000000000000000-mapping.dmp
      Download
    • memory/864-119-0x0000000000D20000-0x0000000000D21000-memory.dmp
      Filesize

      4KB

      Download
    • memory/1296-115-0x0000000002610000-0x0000000002611000-memory.dmp
      Filesize

      4KB

      Download
    • memory/1892-120-0x0000000000000000-mapping.dmp
      Download