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Analysis

  • max time kernel
    65s
  • max time network
    68s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/01/2024, 18:24

General

  • Target

    судуыешфд с.exe

  • Size

    134KB

  • MD5

    503f3a5d4022a3b571b08e10e54dd1cf

  • SHA1

    82a127195cce3a5315fb3e809ca0c57e38f9f996

  • SHA256

    0bf5b69ec22efaf0227f0579074bcf0b1d4b33403eb1bf9b4ca286d85b0893ef

  • SHA512

    21d9ae1e4cf09fb605df13165c462c79b79a4e8a98ef4387b2c8a76b8bfbeef00b78d05703b035bfa123809b5b0cb87c1ac31799d88e71d9f524bf18cf7c825d

  • SSDEEP

    3072:FV28wLn+yJpxUKKA8foBVaM8SKfbzxcwg7es6/Vsb8VKTu:K8wqZKGgBdUhcX7elbKTu

Score
8/10

Malware Config

Signatures

  • 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.

  • Drops startup file 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Drops autorun.inf file 1 TTPs 5 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 13 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\судуыешфд с.exe
    "C:\Users\Admin\AppData\Local\Temp\судуыешфд с.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1700
    • C:\Users\Admin\AppData\Local\Temp\77$.exe
      "C:\Users\Admin\AppData\Local\Temp\77$.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops autorun.inf file
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2692
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\77$.exe" "77$.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:1524

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\77$.exe

    Filesize

    134KB

    MD5

    503f3a5d4022a3b571b08e10e54dd1cf

    SHA1

    82a127195cce3a5315fb3e809ca0c57e38f9f996

    SHA256

    0bf5b69ec22efaf0227f0579074bcf0b1d4b33403eb1bf9b4ca286d85b0893ef

    SHA512

    21d9ae1e4cf09fb605df13165c462c79b79a4e8a98ef4387b2c8a76b8bfbeef00b78d05703b035bfa123809b5b0cb87c1ac31799d88e71d9f524bf18cf7c825d

  • memory/1700-0-0x0000000074D70000-0x0000000075321000-memory.dmp

    Filesize

    5.7MB

  • memory/1700-1-0x0000000074D70000-0x0000000075321000-memory.dmp

    Filesize

    5.7MB

  • memory/1700-2-0x00000000013F0000-0x0000000001400000-memory.dmp

    Filesize

    64KB

  • memory/1700-12-0x0000000074D70000-0x0000000075321000-memory.dmp

    Filesize

    5.7MB

  • memory/2692-13-0x0000000074D70000-0x0000000075321000-memory.dmp

    Filesize

    5.7MB

  • memory/2692-14-0x0000000001900000-0x0000000001910000-memory.dmp

    Filesize

    64KB

  • memory/2692-15-0x0000000074D70000-0x0000000075321000-memory.dmp

    Filesize

    5.7MB

  • memory/2692-25-0x0000000001900000-0x0000000001910000-memory.dmp

    Filesize

    64KB

  • memory/2692-26-0x0000000074D70000-0x0000000075321000-memory.dmp

    Filesize

    5.7MB

  • memory/2692-27-0x0000000001900000-0x0000000001910000-memory.dmp

    Filesize

    64KB

  • memory/2692-28-0x0000000001900000-0x0000000001910000-memory.dmp

    Filesize

    64KB