Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-04-2024 04:52

General

  • Target

    fe79bc594f52ebbec3f8f17d7a15bad7_JaffaCakes118.exe

  • Size

    88KB

  • MD5

    fe79bc594f52ebbec3f8f17d7a15bad7

  • SHA1

    7562533b194a1067eba8851d29b83292f7e4cfc0

  • SHA256

    f2b2bea81b451c8d2c1d4044ef75ac9da40ae52ff9f6c0787722708f23ea61ce

  • SHA512

    5342ca122862210b87affe6f803222d34309d748b9aa2d3a857bceaaa36acce6ccd13402a68ab8df8b2742cf9f2abd0a53723a348cf5f44b97d0256e246d1af2

  • SSDEEP

    1536:Rlt5szhi7nExYxQKGVMcjiK7xox7cJNutA4S1M7yaRe2BclNc:Yhiib2ANc

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

qwertyuiop45678.hopto.org:5554

Mutex

833e3978e131a7641e44155f11f4c918

Attributes
  • reg_key

    833e3978e131a7641e44155f11f4c918

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

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

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

  • Executes dropped EXE 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).

  • Suspicious use of AdjustPrivilegeToken 35 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fe79bc594f52ebbec3f8f17d7a15bad7_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\fe79bc594f52ebbec3f8f17d7a15bad7_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4568
    • C:\Users\Admin\AppData\Local\Temp\server.exe
      "C:\Users\Admin\AppData\Local\Temp\server.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2904
      • C:\Windows\SYSTEM32\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:2996

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Query Registry

1
T1012

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\server.exe
    Filesize

    88KB

    MD5

    fe79bc594f52ebbec3f8f17d7a15bad7

    SHA1

    7562533b194a1067eba8851d29b83292f7e4cfc0

    SHA256

    f2b2bea81b451c8d2c1d4044ef75ac9da40ae52ff9f6c0787722708f23ea61ce

    SHA512

    5342ca122862210b87affe6f803222d34309d748b9aa2d3a857bceaaa36acce6ccd13402a68ab8df8b2742cf9f2abd0a53723a348cf5f44b97d0256e246d1af2

  • memory/2904-20-0x0000000001130000-0x0000000001140000-memory.dmp
    Filesize

    64KB

  • memory/2904-22-0x000000001BE90000-0x000000001BF2C000-memory.dmp
    Filesize

    624KB

  • memory/2904-25-0x0000000001130000-0x0000000001140000-memory.dmp
    Filesize

    64KB

  • memory/2904-24-0x00007FF86EF50000-0x00007FF86F8F1000-memory.dmp
    Filesize

    9.6MB

  • memory/2904-23-0x00000000015B0000-0x00000000015B8000-memory.dmp
    Filesize

    32KB

  • memory/2904-21-0x00007FF86EF50000-0x00007FF86F8F1000-memory.dmp
    Filesize

    9.6MB

  • memory/2904-19-0x00007FF86EF50000-0x00007FF86F8F1000-memory.dmp
    Filesize

    9.6MB

  • memory/4568-18-0x00007FF86EF50000-0x00007FF86F8F1000-memory.dmp
    Filesize

    9.6MB

  • memory/4568-0-0x000000001BCF0000-0x000000001BD96000-memory.dmp
    Filesize

    664KB

  • memory/4568-1-0x00007FF86EF50000-0x00007FF86F8F1000-memory.dmp
    Filesize

    9.6MB

  • memory/4568-2-0x00007FF86EF50000-0x00007FF86F8F1000-memory.dmp
    Filesize

    9.6MB

  • memory/4568-5-0x000000001CA10000-0x000000001CEDE000-memory.dmp
    Filesize

    4.8MB

  • memory/4568-4-0x00000000016C0000-0x00000000016CC000-memory.dmp
    Filesize

    48KB

  • memory/4568-3-0x0000000001530000-0x0000000001540000-memory.dmp
    Filesize

    64KB