Analysis

  • max time kernel
    151s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    02-10-2022 22:44

General

  • Target

    b46fc12074f307eab9675a25fb781fbe401425a8dd57293b49e983ad94424ba9.exe

  • Size

    23KB

  • MD5

    67acdbca7c72d3969a549c414d18d630

  • SHA1

    28bb308476aa7b3f6ac8d5299a0e70bcb8b5dcfc

  • SHA256

    b46fc12074f307eab9675a25fb781fbe401425a8dd57293b49e983ad94424ba9

  • SHA512

    5e284da79589178d6e62c2863e611cb8ac6b4bde653613bf5f227a5f9a59e29dc4c4fe9bc3a438ed4580538bda0d768a66e048f3bd4b6577bc79ad6472e328a7

  • SSDEEP

    384:rcqbCK0l4h7o9SVyDGvENuh46/gJkOmMSW38mRvR6JZlbw8hqIusZzZaR:w30py6vhxaRpcnuB

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

riad1.no-ip.biz:1177

Mutex

5715416fef0cb3c7ac9c48f716dce43b

Attributes
  • reg_key

    5715416fef0cb3c7ac9c48f716dce43b

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Drops startup file 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in Windows directory 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\b46fc12074f307eab9675a25fb781fbe401425a8dd57293b49e983ad94424ba9.exe
    "C:\Users\Admin\AppData\Local\Temp\b46fc12074f307eab9675a25fb781fbe401425a8dd57293b49e983ad94424ba9.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:2036
    • C:\Windows\All2Chat.exe
      "C:\Windows\All2Chat.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1740
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Windows\All2Chat.exe" "All2Chat.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:604

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Windows\All2Chat.exe

    Filesize

    23KB

    MD5

    67acdbca7c72d3969a549c414d18d630

    SHA1

    28bb308476aa7b3f6ac8d5299a0e70bcb8b5dcfc

    SHA256

    b46fc12074f307eab9675a25fb781fbe401425a8dd57293b49e983ad94424ba9

    SHA512

    5e284da79589178d6e62c2863e611cb8ac6b4bde653613bf5f227a5f9a59e29dc4c4fe9bc3a438ed4580538bda0d768a66e048f3bd4b6577bc79ad6472e328a7

  • C:\Windows\All2Chat.exe

    Filesize

    23KB

    MD5

    67acdbca7c72d3969a549c414d18d630

    SHA1

    28bb308476aa7b3f6ac8d5299a0e70bcb8b5dcfc

    SHA256

    b46fc12074f307eab9675a25fb781fbe401425a8dd57293b49e983ad94424ba9

    SHA512

    5e284da79589178d6e62c2863e611cb8ac6b4bde653613bf5f227a5f9a59e29dc4c4fe9bc3a438ed4580538bda0d768a66e048f3bd4b6577bc79ad6472e328a7

  • memory/604-62-0x0000000000000000-mapping.dmp

  • memory/1740-56-0x0000000000000000-mapping.dmp

  • memory/1740-61-0x00000000745A0000-0x0000000074B4B000-memory.dmp

    Filesize

    5.7MB

  • memory/1740-64-0x00000000745A0000-0x0000000074B4B000-memory.dmp

    Filesize

    5.7MB

  • memory/2036-54-0x0000000075521000-0x0000000075523000-memory.dmp

    Filesize

    8KB

  • memory/2036-55-0x00000000745A0000-0x0000000074B4B000-memory.dmp

    Filesize

    5.7MB

  • memory/2036-60-0x00000000745A0000-0x0000000074B4B000-memory.dmp

    Filesize

    5.7MB