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Analysis

  • max time kernel
    143s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/01/2025, 04:19

General

  • Target

    8f42d1e07595808544eed18a45e8d7220dff40597d4d53d0f63fab47554afbdf.exe

  • Size

    945KB

  • MD5

    bc18b6803a287e63b3668b5817f12419

  • SHA1

    bc21190df092d93629068c705ea8dc630d3db4a4

  • SHA256

    8f42d1e07595808544eed18a45e8d7220dff40597d4d53d0f63fab47554afbdf

  • SHA512

    2c29abcd294fd09e39cb604192628c2e4aa71241575ac38644c0fd7e5ac6b77c1f12302003636f166747d7b44649c7a9d31915e1b2c6c5fa09201428187c59e2

  • SSDEEP

    24576:nu6J33O0c+JY5UZ+XC0kGso6FaNXpPkMeCWY:hu0c++OCvkGs9FaNhkZY

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

69.174.100.131:6606

Mutex

abkZfsCYRZhk

Attributes
  • delay

    10

  • install

    false

  • install_file

    order.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

  • Asyncrat family
  • Drops startup file 1 IoCs
  • Executes dropped EXE 1 IoCs
  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • 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: MapViewOfSection 1 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8f42d1e07595808544eed18a45e8d7220dff40597d4d53d0f63fab47554afbdf.exe
    "C:\Users\Admin\AppData\Local\Temp\8f42d1e07595808544eed18a45e8d7220dff40597d4d53d0f63fab47554afbdf.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:3876
    • C:\Users\Admin\AppData\Local\preinhered\Wausaukee.exe
      "C:\Users\Admin\AppData\Local\Temp\8f42d1e07595808544eed18a45e8d7220dff40597d4d53d0f63fab47554afbdf.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:1400
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "C:\Users\Admin\AppData\Local\Temp\8f42d1e07595808544eed18a45e8d7220dff40597d4d53d0f63fab47554afbdf.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4880
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1400 -s 668
        3⤵
        • Program crash
        PID:2812
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 1400 -ip 1400
    1⤵
      PID:3320

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\preinhered\Wausaukee.exe

      Filesize

      945KB

      MD5

      bc18b6803a287e63b3668b5817f12419

      SHA1

      bc21190df092d93629068c705ea8dc630d3db4a4

      SHA256

      8f42d1e07595808544eed18a45e8d7220dff40597d4d53d0f63fab47554afbdf

      SHA512

      2c29abcd294fd09e39cb604192628c2e4aa71241575ac38644c0fd7e5ac6b77c1f12302003636f166747d7b44649c7a9d31915e1b2c6c5fa09201428187c59e2

    • memory/1400-18-0x0000000001310000-0x0000000001710000-memory.dmp

      Filesize

      4.0MB

    • memory/3876-6-0x0000000001000000-0x0000000001400000-memory.dmp

      Filesize

      4.0MB

    • memory/4880-20-0x0000000000400000-0x0000000000412000-memory.dmp

      Filesize

      72KB

    • memory/4880-21-0x00000000745EE000-0x00000000745EF000-memory.dmp

      Filesize

      4KB

    • memory/4880-22-0x00000000745E0000-0x0000000074D90000-memory.dmp

      Filesize

      7.7MB

    • memory/4880-23-0x00000000745E0000-0x0000000074D90000-memory.dmp

      Filesize

      7.7MB