Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-11-2024 23:00

General

  • Target

    53c01d4af6da8c4e7f971db1305275e521550cbb5fb50ae7122b26b91b4f7d9e.exe

  • Size

    31KB

  • MD5

    1dcca57041c8e9e0d00c989d3c9dec4c

  • SHA1

    a4d7ef9eb5756c4cb06f0760b73b169a6bf926f4

  • SHA256

    53c01d4af6da8c4e7f971db1305275e521550cbb5fb50ae7122b26b91b4f7d9e

  • SHA512

    1e5255c9ff3e0691c8581a1d0687a0b2176f6d82983414eb05d44b188544a81d5cf1e7751107c0aa662d17eb27f19a380dc9f2f91f3817ef88c02ba5386b2c6d

  • SSDEEP

    768:WFijnXuTthUzxf6rnYA/bh9vUpQmIDUu0tiwJhj:dn+K+PAQVkNj

Malware Config

Signatures

  • Njrat family
  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 2 IoCs
  • Executes dropped EXE 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).

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 36 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\53c01d4af6da8c4e7f971db1305275e521550cbb5fb50ae7122b26b91b4f7d9e.exe
    "C:\Users\Admin\AppData\Local\Temp\53c01d4af6da8c4e7f971db1305275e521550cbb5fb50ae7122b26b91b4f7d9e.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4912
    • C:\Users\Admin\AppData\Local\Temp\spoolsv.exe
      "C:\Users\Admin\AppData\Local\Temp\spoolsv.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:5072
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\spoolsv.exe" "spoolsv.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:3484

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\spoolsv.exe

    Filesize

    31KB

    MD5

    1dcca57041c8e9e0d00c989d3c9dec4c

    SHA1

    a4d7ef9eb5756c4cb06f0760b73b169a6bf926f4

    SHA256

    53c01d4af6da8c4e7f971db1305275e521550cbb5fb50ae7122b26b91b4f7d9e

    SHA512

    1e5255c9ff3e0691c8581a1d0687a0b2176f6d82983414eb05d44b188544a81d5cf1e7751107c0aa662d17eb27f19a380dc9f2f91f3817ef88c02ba5386b2c6d

  • memory/4912-0-0x0000000074FE2000-0x0000000074FE3000-memory.dmp

    Filesize

    4KB

  • memory/4912-1-0x0000000074FE0000-0x0000000075591000-memory.dmp

    Filesize

    5.7MB

  • memory/4912-2-0x0000000074FE0000-0x0000000075591000-memory.dmp

    Filesize

    5.7MB

  • memory/4912-14-0x0000000074FE0000-0x0000000075591000-memory.dmp

    Filesize

    5.7MB

  • memory/5072-15-0x0000000074FE0000-0x0000000075591000-memory.dmp

    Filesize

    5.7MB

  • memory/5072-16-0x0000000074FE0000-0x0000000075591000-memory.dmp

    Filesize

    5.7MB

  • memory/5072-18-0x0000000074FE0000-0x0000000075591000-memory.dmp

    Filesize

    5.7MB

  • memory/5072-19-0x0000000074FE0000-0x0000000075591000-memory.dmp

    Filesize

    5.7MB

  • memory/5072-20-0x0000000074FE0000-0x0000000075591000-memory.dmp

    Filesize

    5.7MB