Analysis

  • max time kernel
    189s
  • max time network
    180s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-10-2022 22:53

General

  • Target

    f25392c066f5415339b577d577308279e318a015832a9560993a2e7edf0d3373.exe

  • Size

    93KB

  • MD5

    50af32f41c22abf955a2f1116583ccc0

  • SHA1

    000a7f9a8af1a0d165593cf1b4764f4b2ce53447

  • SHA256

    f25392c066f5415339b577d577308279e318a015832a9560993a2e7edf0d3373

  • SHA512

    355239639ad417df36d07934ba70e54a0e978454f4b8772b64166365bf3bcda5df86bf555a34eb44698543b94e94b8a9f9f20cadb08970821e8ae9033de0deff

  • SSDEEP

    1536:ubytW3PcsuXg8Jw8AerxxZkASHjwxleHQPV6OHNPajCtq4hXoG9nxRcC0g2njpv6:syqcsuXgYw8vxRSHj28HQw8tZejPW5n

Malware Config

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

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

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

  • 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). Likely ransomware behaviour.

  • Suspicious use of AdjustPrivilegeToken 25 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f25392c066f5415339b577d577308279e318a015832a9560993a2e7edf0d3373.exe
    "C:\Users\Admin\AppData\Local\Temp\f25392c066f5415339b577d577308279e318a015832a9560993a2e7edf0d3373.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:5044
    • C:\Users\Admin\AppData\Local\Temp\server.exe
      "C:\Users\Admin\AppData\Local\Temp\server.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4948
      • C:\Windows\SYSTEM32\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:1816

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    93KB

    MD5

    50af32f41c22abf955a2f1116583ccc0

    SHA1

    000a7f9a8af1a0d165593cf1b4764f4b2ce53447

    SHA256

    f25392c066f5415339b577d577308279e318a015832a9560993a2e7edf0d3373

    SHA512

    355239639ad417df36d07934ba70e54a0e978454f4b8772b64166365bf3bcda5df86bf555a34eb44698543b94e94b8a9f9f20cadb08970821e8ae9033de0deff

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

    Filesize

    93KB

    MD5

    50af32f41c22abf955a2f1116583ccc0

    SHA1

    000a7f9a8af1a0d165593cf1b4764f4b2ce53447

    SHA256

    f25392c066f5415339b577d577308279e318a015832a9560993a2e7edf0d3373

    SHA512

    355239639ad417df36d07934ba70e54a0e978454f4b8772b64166365bf3bcda5df86bf555a34eb44698543b94e94b8a9f9f20cadb08970821e8ae9033de0deff

  • memory/1816-143-0x0000000000000000-mapping.dmp

  • memory/4948-138-0x0000000000000000-mapping.dmp

  • memory/4948-141-0x00007FFB3D0E0000-0x00007FFB3DBA1000-memory.dmp

    Filesize

    10.8MB

  • memory/4948-144-0x00007FFB3D0E0000-0x00007FFB3DBA1000-memory.dmp

    Filesize

    10.8MB

  • memory/5044-135-0x00000000003F0000-0x000000000040E000-memory.dmp

    Filesize

    120KB

  • memory/5044-136-0x00007FFB3D0E0000-0x00007FFB3DBA1000-memory.dmp

    Filesize

    10.8MB

  • memory/5044-137-0x00007FFB3D0E0000-0x00007FFB3DBA1000-memory.dmp

    Filesize

    10.8MB

  • memory/5044-142-0x00007FFB3D0E0000-0x00007FFB3DBA1000-memory.dmp

    Filesize

    10.8MB