Analysis

  • max time kernel
    150s
  • max time network
    140s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    31-05-2024 01:29

General

  • Target

    85972855ff977c521b1a717a32593fdd_JaffaCakes118.exe

  • Size

    37KB

  • MD5

    85972855ff977c521b1a717a32593fdd

  • SHA1

    b0144dfb8130083922e35b70152edd83739359a9

  • SHA256

    4b0f762e2935bd48524d835f4d6eb6289f20721241a362fb51a520150fdba95e

  • SHA512

    1c81a09c3e562bbe462690d899499d187e3b52fd5d5ec759482d7dda5136c4af54f5c806d246db8a331effb633f96754987a8af03238b7cda5019c5fd17c849f

  • SSDEEP

    384:k4qBkiyjnDNGRn5IyUvapIrPbh+/VsIFzbrAF+rMRTyN/0L+EcoinblneHQM3epa:v35M5jUvairANsItrM+rMRa8NuaPt

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

HacKer

C2

91.232.111.212:7777

Mutex

47f152bbb0d9981b492589085b7b7e18

Attributes
  • reg_key

    47f152bbb0d9981b492589085b7b7e18

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Drops startup file 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops autorun.inf file 1 TTPs 5 IoCs

    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).

  • Kills process with taskkill 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 36 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\85972855ff977c521b1a717a32593fdd_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\85972855ff977c521b1a717a32593fdd_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1504
    • C:\Users\Admin\svhost.exe
      "C:\Users\Admin\svhost.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops autorun.inf file
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2324
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\svhost.exe" "svhost.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:2624
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /F /IM Exsample.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:2548

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Replication Through Removable Media

1
T1091

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

Discovery

System Information Discovery

1
T1082

Lateral Movement

Replication Through Removable Media

1
T1091

Replay Monitor

Loading Replay Monitor...

Downloads

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

    37KB

    MD5

    85972855ff977c521b1a717a32593fdd

    SHA1

    b0144dfb8130083922e35b70152edd83739359a9

    SHA256

    4b0f762e2935bd48524d835f4d6eb6289f20721241a362fb51a520150fdba95e

    SHA512

    1c81a09c3e562bbe462690d899499d187e3b52fd5d5ec759482d7dda5136c4af54f5c806d246db8a331effb633f96754987a8af03238b7cda5019c5fd17c849f

  • memory/1504-0-0x0000000074511000-0x0000000074512000-memory.dmp
    Filesize

    4KB

  • memory/1504-1-0x0000000074510000-0x0000000074ABB000-memory.dmp
    Filesize

    5.7MB

  • memory/1504-2-0x0000000074510000-0x0000000074ABB000-memory.dmp
    Filesize

    5.7MB

  • memory/1504-11-0x0000000074510000-0x0000000074ABB000-memory.dmp
    Filesize

    5.7MB

  • memory/2324-12-0x0000000074510000-0x0000000074ABB000-memory.dmp
    Filesize

    5.7MB

  • memory/2324-10-0x0000000074510000-0x0000000074ABB000-memory.dmp
    Filesize

    5.7MB

  • memory/2324-22-0x0000000074510000-0x0000000074ABB000-memory.dmp
    Filesize

    5.7MB