Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    23-09-2022 08:41

General

  • Target

    073869f6916ea44677e40d5186bda961.exe

  • Size

    37KB

  • MD5

    073869f6916ea44677e40d5186bda961

  • SHA1

    f383b64329fd19115ad8587e8a9154cf1093ab3b

  • SHA256

    af8ac614d751b198b1fd00e75a99741d9190520dbd7825a395443354d8c8cc1a

  • SHA512

    01719f7c9569ad371c0ad197310acab7e6d670d20c868e018fb031ced840d3ab0e2828b908821740123949fe681a5664f0e49d48c05168d562af83665561a9b8

  • SSDEEP

    384:gFBZkitgZf5W9cTYXyc/SKlMA+zfzQnssItSrAF+rMRTyN/0L+EcoinblneHQM3K:2ByjjTYic/SKq8ssIErM+rMRa8Nujrt

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

HacKed

C2

4.tcp.eu.ngrok.io:11814

Mutex

556f30eecd77380f1e650174143e5dec

Attributes
  • reg_key

    556f30eecd77380f1e650174143e5dec

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Drops startup file 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 2 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 behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 19 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\073869f6916ea44677e40d5186bda961.exe
    "C:\Users\Admin\AppData\Local\Temp\073869f6916ea44677e40d5186bda961.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1048
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      "C:\Users\Admin\AppData\Roaming\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:2008
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\svchost.exe" "svchost.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:1684

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

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\svchost.exe
    Filesize

    37KB

    MD5

    073869f6916ea44677e40d5186bda961

    SHA1

    f383b64329fd19115ad8587e8a9154cf1093ab3b

    SHA256

    af8ac614d751b198b1fd00e75a99741d9190520dbd7825a395443354d8c8cc1a

    SHA512

    01719f7c9569ad371c0ad197310acab7e6d670d20c868e018fb031ced840d3ab0e2828b908821740123949fe681a5664f0e49d48c05168d562af83665561a9b8

  • C:\Users\Admin\AppData\Roaming\svchost.exe
    Filesize

    37KB

    MD5

    073869f6916ea44677e40d5186bda961

    SHA1

    f383b64329fd19115ad8587e8a9154cf1093ab3b

    SHA256

    af8ac614d751b198b1fd00e75a99741d9190520dbd7825a395443354d8c8cc1a

    SHA512

    01719f7c9569ad371c0ad197310acab7e6d670d20c868e018fb031ced840d3ab0e2828b908821740123949fe681a5664f0e49d48c05168d562af83665561a9b8

  • \Users\Admin\AppData\Roaming\svchost.exe
    Filesize

    37KB

    MD5

    073869f6916ea44677e40d5186bda961

    SHA1

    f383b64329fd19115ad8587e8a9154cf1093ab3b

    SHA256

    af8ac614d751b198b1fd00e75a99741d9190520dbd7825a395443354d8c8cc1a

    SHA512

    01719f7c9569ad371c0ad197310acab7e6d670d20c868e018fb031ced840d3ab0e2828b908821740123949fe681a5664f0e49d48c05168d562af83665561a9b8

  • memory/1048-54-0x00000000759F1000-0x00000000759F3000-memory.dmp
    Filesize

    8KB

  • memory/1048-55-0x0000000074A00000-0x0000000074FAB000-memory.dmp
    Filesize

    5.7MB

  • memory/1048-61-0x0000000074A00000-0x0000000074FAB000-memory.dmp
    Filesize

    5.7MB

  • memory/1684-63-0x0000000000000000-mapping.dmp
  • memory/2008-57-0x0000000000000000-mapping.dmp
  • memory/2008-62-0x0000000074A00000-0x0000000074FAB000-memory.dmp
    Filesize

    5.7MB

  • memory/2008-65-0x0000000074A00000-0x0000000074FAB000-memory.dmp
    Filesize

    5.7MB