Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-03-2023 04:09

General

  • Target

    bK53.exe

  • Size

    23KB

  • MD5

    bdc8185a8b270395984b7f63f1072107

  • SHA1

    03ff66716e034bd799405fb630d3f334c62534cb

  • SHA256

    502ccd94a1e7744941ab2bc6ee448107b17d026490cfdf7c02146045088efa18

  • SHA512

    e019ccfe2e28c49307e7510c1f9c90b97ffe0313b1c9f18752188bcc5df1265220b28903ae4f68b7c425b8a71b47ac3d7a883722a56aca2c76044904bcb9ab68

  • SSDEEP

    384:fcqbCK0l4h7o9SVyDGvENuh46/gJkOmMSW38mRvR6JZlbw8hqIusZzZz2:E30py6vhxaRpcnuh

Score
10/10

Malware Config

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Suspicious use of AdjustPrivilegeToken 35 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bK53.exe
    "C:\Users\Admin\AppData\Local\Temp\bK53.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3852
    • C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\bK53.exe" "bK53.exe" ENABLE
      2⤵
      • Modifies Windows Firewall
      PID:2112

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Modify Existing Service

1
T1031

Command and Control

Web Service

1
T1102

Replay Monitor

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Downloads

  • memory/3852-133-0x0000000000F40000-0x0000000000F50000-memory.dmp
    Filesize

    64KB

  • memory/3852-134-0x0000000000F40000-0x0000000000F50000-memory.dmp
    Filesize

    64KB