Analysis

  • max time kernel
    152s
  • max time network
    44s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    03-10-2022 00:30

General

  • Target

    e9fcf30398488762d2a51dee752480e71b9ac9da5ab2f961ae9b0f2dc3b747d1.exe

  • Size

    29KB

  • MD5

    30c6d818e5ac01e4e9a998d7ec4ab5df

  • SHA1

    5fed4519e25031b968eec619b761618d52bcd265

  • SHA256

    e9fcf30398488762d2a51dee752480e71b9ac9da5ab2f961ae9b0f2dc3b747d1

  • SHA512

    ea9c48c09bd8c668b038a9f4b6d94c50d661081bffee286b946a675135f5d5f2d6d18adb6321fd036b717331938ebc15602c587787f246ecf124be9a7492db05

  • SSDEEP

    384:2xUHEBl7p3hUw2s7bD55gEKemqDSqre/IDGBsbh0w4wlAokw9OhgOL1vYRGOZzCI:217bUw2C3kEcqNreHBKh0p29SgRzj

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

HacKed

C2

ahmed124.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
  • Loads dropped DLL 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). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e9fcf30398488762d2a51dee752480e71b9ac9da5ab2f961ae9b0f2dc3b747d1.exe
    "C:\Users\Admin\AppData\Local\Temp\e9fcf30398488762d2a51dee752480e71b9ac9da5ab2f961ae9b0f2dc3b747d1.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1228
    • 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:1608
      • 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:1596

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

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

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

    29KB

    MD5

    30c6d818e5ac01e4e9a998d7ec4ab5df

    SHA1

    5fed4519e25031b968eec619b761618d52bcd265

    SHA256

    e9fcf30398488762d2a51dee752480e71b9ac9da5ab2f961ae9b0f2dc3b747d1

    SHA512

    ea9c48c09bd8c668b038a9f4b6d94c50d661081bffee286b946a675135f5d5f2d6d18adb6321fd036b717331938ebc15602c587787f246ecf124be9a7492db05

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

    29KB

    MD5

    30c6d818e5ac01e4e9a998d7ec4ab5df

    SHA1

    5fed4519e25031b968eec619b761618d52bcd265

    SHA256

    e9fcf30398488762d2a51dee752480e71b9ac9da5ab2f961ae9b0f2dc3b747d1

    SHA512

    ea9c48c09bd8c668b038a9f4b6d94c50d661081bffee286b946a675135f5d5f2d6d18adb6321fd036b717331938ebc15602c587787f246ecf124be9a7492db05

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

    29KB

    MD5

    30c6d818e5ac01e4e9a998d7ec4ab5df

    SHA1

    5fed4519e25031b968eec619b761618d52bcd265

    SHA256

    e9fcf30398488762d2a51dee752480e71b9ac9da5ab2f961ae9b0f2dc3b747d1

    SHA512

    ea9c48c09bd8c668b038a9f4b6d94c50d661081bffee286b946a675135f5d5f2d6d18adb6321fd036b717331938ebc15602c587787f246ecf124be9a7492db05

  • memory/1228-54-0x0000000075561000-0x0000000075563000-memory.dmp
    Filesize

    8KB

  • memory/1228-55-0x0000000074260000-0x000000007480B000-memory.dmp
    Filesize

    5.7MB

  • memory/1228-61-0x0000000074260000-0x000000007480B000-memory.dmp
    Filesize

    5.7MB

  • memory/1596-62-0x0000000000000000-mapping.dmp
  • memory/1608-57-0x0000000000000000-mapping.dmp
  • memory/1608-63-0x0000000074260000-0x000000007480B000-memory.dmp
    Filesize

    5.7MB

  • memory/1608-65-0x0000000074260000-0x000000007480B000-memory.dmp
    Filesize

    5.7MB