Analysis

  • max time kernel
    178s
  • max time network
    182s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-11-2022 18:15

General

  • Target

    dd1262ce6d8488aaea364ef7a3d2938e116c4bfce85deb6aa7fb433960a830a3.exe

  • Size

    29KB

  • MD5

    44f646bc5aba91948267b5234704b4d7

  • SHA1

    2ea965e5b8ff2ffe13353fd8df86cd12eef441dd

  • SHA256

    dd1262ce6d8488aaea364ef7a3d2938e116c4bfce85deb6aa7fb433960a830a3

  • SHA512

    722a79b5d07f78bbe5231570159cd3f93eb850d2d172e8226dcffdba7f6fb1381a176b2822971954f63dd980767d5281e96f1e36e4d2b81a4e392bf6323a546e

  • SSDEEP

    768:Qj77ucYfKQTtzjAqc3eUBKh0p29SgRvY:M7hWVUJZKhG29jvY

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

HacKed

C2

tagmoute123.no-ip.biz:1177

Mutex

5cd8f17f4086744065eb0992a09e05a2

Attributes
  • reg_key

    5cd8f17f4086744065eb0992a09e05a2

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

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

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

  • 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 42 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dd1262ce6d8488aaea364ef7a3d2938e116c4bfce85deb6aa7fb433960a830a3.exe
    "C:\Users\Admin\AppData\Local\Temp\dd1262ce6d8488aaea364ef7a3d2938e116c4bfce85deb6aa7fb433960a830a3.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4660
    • C:\Users\Admin\AppData\Local\Temp\Trojan.exe
      "C:\Users\Admin\AppData\Local\Temp\Trojan.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1284
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Trojan.exe" "Trojan.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:1468

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

Query Registry

1
T1012

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

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

    29KB

    MD5

    44f646bc5aba91948267b5234704b4d7

    SHA1

    2ea965e5b8ff2ffe13353fd8df86cd12eef441dd

    SHA256

    dd1262ce6d8488aaea364ef7a3d2938e116c4bfce85deb6aa7fb433960a830a3

    SHA512

    722a79b5d07f78bbe5231570159cd3f93eb850d2d172e8226dcffdba7f6fb1381a176b2822971954f63dd980767d5281e96f1e36e4d2b81a4e392bf6323a546e

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

    29KB

    MD5

    44f646bc5aba91948267b5234704b4d7

    SHA1

    2ea965e5b8ff2ffe13353fd8df86cd12eef441dd

    SHA256

    dd1262ce6d8488aaea364ef7a3d2938e116c4bfce85deb6aa7fb433960a830a3

    SHA512

    722a79b5d07f78bbe5231570159cd3f93eb850d2d172e8226dcffdba7f6fb1381a176b2822971954f63dd980767d5281e96f1e36e4d2b81a4e392bf6323a546e

  • memory/1284-133-0x0000000000000000-mapping.dmp
  • memory/1284-138-0x0000000075570000-0x0000000075B21000-memory.dmp
    Filesize

    5.7MB

  • memory/1284-139-0x0000000075570000-0x0000000075B21000-memory.dmp
    Filesize

    5.7MB

  • memory/1468-137-0x0000000000000000-mapping.dmp
  • memory/4660-132-0x0000000075570000-0x0000000075B21000-memory.dmp
    Filesize

    5.7MB

  • memory/4660-136-0x0000000075570000-0x0000000075B21000-memory.dmp
    Filesize

    5.7MB