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Analysis

  • max time kernel
    101s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/10/2022, 12:04

General

  • Target

    c9fe9e30944e70f6e5ec9ab822320e854cd0a5333b2ba0533ef0e8f082b82a2d.exe

  • Size

    1014KB

  • MD5

    93ec591bcd108f1e21d5426348295410

  • SHA1

    f9eb7085bf72b5dab61eeaed832975ff51a24c9c

  • SHA256

    c9fe9e30944e70f6e5ec9ab822320e854cd0a5333b2ba0533ef0e8f082b82a2d

  • SHA512

    9a304354967eb0baf90cbb638d1c64d4f7f72111b15d9ada556822bc0ce8eee0b50310ccdb65011c4a075496eb00ac4eb1b65f45c9ca7f325fa5e2515223150a

  • SSDEEP

    24576:y969NTTlWa8vuj18D384lX6sGkbQLmIQoTDYbu4sH+D:y96nTJWasuj18DMARrQLmIQyL4sH+

Score
8/10

Malware Config

Signatures

  • ASPack v2.12-2.42 2 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • Executes dropped EXE 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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c9fe9e30944e70f6e5ec9ab822320e854cd0a5333b2ba0533ef0e8f082b82a2d.exe
    "C:\Users\Admin\AppData\Local\Temp\c9fe9e30944e70f6e5ec9ab822320e854cd0a5333b2ba0533ef0e8f082b82a2d.exe"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4924
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bRC.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bRC.exe"
      2⤵
      • Executes dropped EXE
      PID:4472

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bRC.exe

    Filesize

    1014KB

    MD5

    93ec591bcd108f1e21d5426348295410

    SHA1

    f9eb7085bf72b5dab61eeaed832975ff51a24c9c

    SHA256

    c9fe9e30944e70f6e5ec9ab822320e854cd0a5333b2ba0533ef0e8f082b82a2d

    SHA512

    9a304354967eb0baf90cbb638d1c64d4f7f72111b15d9ada556822bc0ce8eee0b50310ccdb65011c4a075496eb00ac4eb1b65f45c9ca7f325fa5e2515223150a

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bRC.exe

    Filesize

    1014KB

    MD5

    93ec591bcd108f1e21d5426348295410

    SHA1

    f9eb7085bf72b5dab61eeaed832975ff51a24c9c

    SHA256

    c9fe9e30944e70f6e5ec9ab822320e854cd0a5333b2ba0533ef0e8f082b82a2d

    SHA512

    9a304354967eb0baf90cbb638d1c64d4f7f72111b15d9ada556822bc0ce8eee0b50310ccdb65011c4a075496eb00ac4eb1b65f45c9ca7f325fa5e2515223150a

  • memory/4472-140-0x0000000000400000-0x00000000006B4000-memory.dmp

    Filesize

    2.7MB

  • memory/4472-141-0x0000000000400000-0x00000000006B4000-memory.dmp

    Filesize

    2.7MB

  • memory/4472-143-0x0000000000400000-0x00000000006B4000-memory.dmp

    Filesize

    2.7MB

  • memory/4472-142-0x0000000000400000-0x00000000006B4000-memory.dmp

    Filesize

    2.7MB

  • memory/4472-144-0x0000000000400000-0x00000000006B4000-memory.dmp

    Filesize

    2.7MB

  • memory/4472-146-0x0000000000400000-0x00000000006B4000-memory.dmp

    Filesize

    2.7MB

  • memory/4924-135-0x0000000000400000-0x00000000006B4000-memory.dmp

    Filesize

    2.7MB

  • memory/4924-136-0x0000000000400000-0x00000000006B4000-memory.dmp

    Filesize

    2.7MB

  • memory/4924-133-0x0000000000400000-0x00000000006B4000-memory.dmp

    Filesize

    2.7MB

  • memory/4924-134-0x0000000000400000-0x00000000006B4000-memory.dmp

    Filesize

    2.7MB

  • memory/4924-132-0x0000000000400000-0x00000000006B4000-memory.dmp

    Filesize

    2.7MB

  • memory/4924-145-0x0000000000400000-0x00000000006B4000-memory.dmp

    Filesize

    2.7MB