Analysis

  • max time kernel
    149s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    26-11-2022 11:40

General

  • Target

    c031c4aa33d22d49250a70fb5443ca55edc70c3465ff8309646eb80b1276e73f.exe

  • Size

    23KB

  • MD5

    7381e9658573cd91dc4bcfa8ca16b6c3

  • SHA1

    3dbdabbfd7ff982167877d195fc6575cf35063e6

  • SHA256

    c031c4aa33d22d49250a70fb5443ca55edc70c3465ff8309646eb80b1276e73f

  • SHA512

    cde152a1449c563b276c83fd4fa22c122ce2ae36bbb0ca07e5de1a54895f3c229a446702af9c55d45042fef6a8111c21c391d91b433912c7fbdc47edbdea5a68

  • SSDEEP

    384:U8aLWS0dABLYVq6RxP8MDFF09vK563gRMmJKUv0mRvR6JZlbw8hqIusZzZtM:zXcwt3tRpcnuJ

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

system

C2

127.0.0.1:5552

Mutex

312690745b3951573ca7c21d011ece33

Attributes
  • reg_key

    312690745b3951573ca7c21d011ece33

  • 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 use of AdjustPrivilegeToken 19 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c031c4aa33d22d49250a70fb5443ca55edc70c3465ff8309646eb80b1276e73f.exe
    "C:\Users\Admin\AppData\Local\Temp\c031c4aa33d22d49250a70fb5443ca55edc70c3465ff8309646eb80b1276e73f.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1000
    • C:\Users\Admin\AppData\Local\Temp\google.exe
      "C:\Users\Admin\AppData\Local\Temp\google.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1768
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\google.exe" "google.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:952

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\google.exe
    Filesize

    23KB

    MD5

    7381e9658573cd91dc4bcfa8ca16b6c3

    SHA1

    3dbdabbfd7ff982167877d195fc6575cf35063e6

    SHA256

    c031c4aa33d22d49250a70fb5443ca55edc70c3465ff8309646eb80b1276e73f

    SHA512

    cde152a1449c563b276c83fd4fa22c122ce2ae36bbb0ca07e5de1a54895f3c229a446702af9c55d45042fef6a8111c21c391d91b433912c7fbdc47edbdea5a68

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

    23KB

    MD5

    7381e9658573cd91dc4bcfa8ca16b6c3

    SHA1

    3dbdabbfd7ff982167877d195fc6575cf35063e6

    SHA256

    c031c4aa33d22d49250a70fb5443ca55edc70c3465ff8309646eb80b1276e73f

    SHA512

    cde152a1449c563b276c83fd4fa22c122ce2ae36bbb0ca07e5de1a54895f3c229a446702af9c55d45042fef6a8111c21c391d91b433912c7fbdc47edbdea5a68

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

    23KB

    MD5

    7381e9658573cd91dc4bcfa8ca16b6c3

    SHA1

    3dbdabbfd7ff982167877d195fc6575cf35063e6

    SHA256

    c031c4aa33d22d49250a70fb5443ca55edc70c3465ff8309646eb80b1276e73f

    SHA512

    cde152a1449c563b276c83fd4fa22c122ce2ae36bbb0ca07e5de1a54895f3c229a446702af9c55d45042fef6a8111c21c391d91b433912c7fbdc47edbdea5a68

  • memory/952-63-0x0000000000000000-mapping.dmp
  • memory/1000-54-0x0000000075201000-0x0000000075203000-memory.dmp
    Filesize

    8KB

  • memory/1000-55-0x0000000074740000-0x0000000074CEB000-memory.dmp
    Filesize

    5.7MB

  • memory/1000-61-0x0000000074740000-0x0000000074CEB000-memory.dmp
    Filesize

    5.7MB

  • memory/1768-57-0x0000000000000000-mapping.dmp
  • memory/1768-62-0x0000000074740000-0x0000000074CEB000-memory.dmp
    Filesize

    5.7MB

  • memory/1768-65-0x0000000074740000-0x0000000074CEB000-memory.dmp
    Filesize

    5.7MB