Overview

overview

10

Static

static

3

471f44b8dd...18.exe

windows7-x64

10

471f44b8dd...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-05-2024 16:55

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General

  • Target

    471f44b8dda9fc7d870fd9c3b0ca9e9e_JaffaCakes118.exe

  • Size

    1.1MB

  • MD5

    471f44b8dda9fc7d870fd9c3b0ca9e9e

  • SHA1

    468f47c964cb5b5f55b5815ca59933267da4dd7a

  • SHA256

    087ab14dccf27b8defe6fd4b00e60d602b42dc9bcc92d4b71eaa71d34bb146a8

  • SHA512

    3b70b76a6072b312821ae264cc77bb00ff9df08d5106339ae6fce52f416514cbd550560fd394eea0c325e821285878f1db6c414c1c936701f0aa50fd72caa6f4

  • SSDEEP

    24576:25CUuHFZER78cA3Mp2Gc/tcTG6cYKY54I66WierjjALnDj:0eHFZM7tAG2GcliG4KYR66Wi0j0Dj

Score
10/10
njrathackerevasionpersistencetrojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

HacKer

C2

91.232.111.212:7777

Mutex

4a3d67ee61b43118e4130164dec374f7

Attributes
  • reg_key

    4a3d67ee61b43118e4130164dec374f7

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

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

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

  • Drops startup file 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Drops autorun.inf file 1 TTPs 5 IoCs

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

  • Suspicious use of NtSetInformationThreadHideFromDebugger 17 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Kills process with taskkill 1 IoCs
    evasion
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 36 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\471f44b8dda9fc7d870fd9c3b0ca9e9e_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\471f44b8dda9fc7d870fd9c3b0ca9e9e_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3852
    • C:\Users\Admin\expler.exe
      "C:\Users\Admin\expler.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops autorun.inf file
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3088
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\expler.exe" "expler.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:2168
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /F /IM Exsample.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:5180

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Replication Through Removable Media

1
T1091

Execution

Persistence

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Impair Defenses

1
T1562

Disable or Modify System Firewall

1
T1562.004

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

Resource Development

Reconnaissance

Replay Monitor

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Downloads

  • C:\Users\Admin\expler.exe
    Filesize

    1.1MB

    MD5

    471f44b8dda9fc7d870fd9c3b0ca9e9e

    SHA1

    468f47c964cb5b5f55b5815ca59933267da4dd7a

    SHA256

    087ab14dccf27b8defe6fd4b00e60d602b42dc9bcc92d4b71eaa71d34bb146a8

    SHA512

    3b70b76a6072b312821ae264cc77bb00ff9df08d5106339ae6fce52f416514cbd550560fd394eea0c325e821285878f1db6c414c1c936701f0aa50fd72caa6f4

    Download Submit
  • memory/3088-26-0x0000000073F10000-0x00000000744C1000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/3088-41-0x0000000073F10000-0x00000000744C1000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/3088-40-0x0000000001000000-0x0000000001396000-memory.dmp
    Filesize

    3.6MB

    Download
  • memory/3088-28-0x0000000073F10000-0x00000000744C1000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/3088-24-0x0000000001000000-0x0000000001396000-memory.dmp
    Filesize

    3.6MB

    Download
  • memory/3088-27-0x0000000073F10000-0x00000000744C1000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/3852-3-0x0000000073F10000-0x00000000744C1000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/3852-25-0x0000000073F10000-0x00000000744C1000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/3852-23-0x0000000000E70000-0x0000000001206000-memory.dmp
    Filesize

    3.6MB

    Download
  • memory/3852-0-0x0000000000E70000-0x0000000001206000-memory.dmp
    Filesize

    3.6MB

    Download
  • memory/3852-2-0x0000000073F10000-0x00000000744C1000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/3852-1-0x0000000073F12000-0x0000000073F13000-memory.dmp
    Filesize

    4KB

    Download