Analysis

  • max time kernel
    153s
  • max time network
    64s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    02-10-2022 09:10

General

  • Target

    8b40040cf08471cecbad21a1199b23336bcca69d97220ef0e592fe5106d118f2.exe

  • Size

    66KB

  • MD5

    678736f0c01d5772c5fe8f17c2a2f0a0

  • SHA1

    6fd5092205a163cdd409a28a321221d4e12ebc96

  • SHA256

    8b40040cf08471cecbad21a1199b23336bcca69d97220ef0e592fe5106d118f2

  • SHA512

    8d9f62978cf91e597d4a8e19e2747a5d70fcbb42deaf3c4036a0c15454a959f59ca2350f4d30ce55cf09bd25f0cdf7f5004240d24c9ba374d72a72728fb21830

  • SSDEEP

    1536:i7hWVUJZKhG29jD4Uj2qkSZZZ3gdt7j2qkSZZZD:sWVcQA29djYUG7jYi

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

HacKed

C2

redwaneboudaa.zapto.org:1177

Mutex

6041060f82ac9ecc2165d44257f9aec8

Attributes
  • reg_key

    6041060f82ac9ecc2165d44257f9aec8

  • 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
  • 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\8b40040cf08471cecbad21a1199b23336bcca69d97220ef0e592fe5106d118f2.exe
    "C:\Users\Admin\AppData\Local\Temp\8b40040cf08471cecbad21a1199b23336bcca69d97220ef0e592fe5106d118f2.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1000
    • C:\Users\Admin\AppData\Local\Temp\rida.exe
      "C:\Users\Admin\AppData\Local\Temp\rida.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:896
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\rida.exe" "rida.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:624

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Modify Existing Service

1
T1031

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

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

    66KB

    MD5

    678736f0c01d5772c5fe8f17c2a2f0a0

    SHA1

    6fd5092205a163cdd409a28a321221d4e12ebc96

    SHA256

    8b40040cf08471cecbad21a1199b23336bcca69d97220ef0e592fe5106d118f2

    SHA512

    8d9f62978cf91e597d4a8e19e2747a5d70fcbb42deaf3c4036a0c15454a959f59ca2350f4d30ce55cf09bd25f0cdf7f5004240d24c9ba374d72a72728fb21830

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

    66KB

    MD5

    678736f0c01d5772c5fe8f17c2a2f0a0

    SHA1

    6fd5092205a163cdd409a28a321221d4e12ebc96

    SHA256

    8b40040cf08471cecbad21a1199b23336bcca69d97220ef0e592fe5106d118f2

    SHA512

    8d9f62978cf91e597d4a8e19e2747a5d70fcbb42deaf3c4036a0c15454a959f59ca2350f4d30ce55cf09bd25f0cdf7f5004240d24c9ba374d72a72728fb21830

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

    66KB

    MD5

    678736f0c01d5772c5fe8f17c2a2f0a0

    SHA1

    6fd5092205a163cdd409a28a321221d4e12ebc96

    SHA256

    8b40040cf08471cecbad21a1199b23336bcca69d97220ef0e592fe5106d118f2

    SHA512

    8d9f62978cf91e597d4a8e19e2747a5d70fcbb42deaf3c4036a0c15454a959f59ca2350f4d30ce55cf09bd25f0cdf7f5004240d24c9ba374d72a72728fb21830

  • memory/624-61-0x0000000000000000-mapping.dmp
  • memory/896-56-0x0000000000000000-mapping.dmp
  • memory/896-62-0x0000000074740000-0x0000000074CEB000-memory.dmp
    Filesize

    5.7MB

  • memory/896-64-0x0000000074740000-0x0000000074CEB000-memory.dmp
    Filesize

    5.7MB

  • memory/1000-54-0x0000000075201000-0x0000000075203000-memory.dmp
    Filesize

    8KB

  • memory/1000-60-0x0000000074740000-0x0000000074CEB000-memory.dmp
    Filesize

    5.7MB