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Overview

overview

10

Static

static

3

JaffaCakes...b6.exe

windows7-x64

10

JaffaCakes...b6.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/12/2024, 20:52

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General

  • Target

    JaffaCakes118_364aa1efa31842295e6290d352390bb6.exe

  • Size

    157KB

  • MD5

    364aa1efa31842295e6290d352390bb6

  • SHA1

    d2e9f7fd925e2edcd2b8c8cc033e189c3d7e0a6c

  • SHA256

    73622b111abdbe9b630dfcadb41ffe073e9bd4dd8155751c489574eb9e5e2c0b

  • SHA512

    b39b1925a19e08bacef960190a9d5693598ad2152d96afe67025111ad8095b82cf824be9c0a20a85f3754b797e9f81b3a98dfc9365e5328f16ad164c0ac61bef

  • SSDEEP

    3072:qztOcOYZTBjW6WLPK7wIWCZZ+lHG3qwvwLj18FACXL41vrZ2r:qdjYzifilm6wv48F5bpr

Score
10/10
njratdiscoveryevasionpersistenceprivilege_escalationtrojan

Malware Config

Signatures

  • Njrat family
    njrat
  • 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
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

    persistenceprivilege_escalation
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 36 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_364aa1efa31842295e6290d352390bb6.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_364aa1efa31842295e6290d352390bb6.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3308
    • C:\Windows\WindowsServices.exe
      "C:\Windows\WindowsServices.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2444
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Windows\WindowsServices.exe" "WindowsServices.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:652

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

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

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Command and Control

Web Service

1
T1102

Exfiltration

Impact

Replay Monitor

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Downloads

  • C:\Windows\WindowsServices.exe
    Filesize

    157KB

    MD5

    364aa1efa31842295e6290d352390bb6

    SHA1

    d2e9f7fd925e2edcd2b8c8cc033e189c3d7e0a6c

    SHA256

    73622b111abdbe9b630dfcadb41ffe073e9bd4dd8155751c489574eb9e5e2c0b

    SHA512

    b39b1925a19e08bacef960190a9d5693598ad2152d96afe67025111ad8095b82cf824be9c0a20a85f3754b797e9f81b3a98dfc9365e5328f16ad164c0ac61bef

    Download Submit

  • memory/2444-15-0x0000000074730000-0x0000000074CE1000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2444-16-0x0000000074730000-0x0000000074CE1000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2444-17-0x0000000074730000-0x0000000074CE1000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2444-19-0x0000000074730000-0x0000000074CE1000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2444-20-0x0000000074730000-0x0000000074CE1000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2444-21-0x0000000074730000-0x0000000074CE1000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/3308-0-0x0000000074732000-0x0000000074733000-memory.dmp

    Filesize

    4KB

    Download

  • memory/3308-1-0x0000000074730000-0x0000000074CE1000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/3308-2-0x0000000074730000-0x0000000074CE1000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/3308-14-0x0000000074730000-0x0000000074CE1000-memory.dmp

    Filesize

    5.7MB

    Download