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Resubmissions

12/01/2025, 09:31

250112-lhklrsyqem 10

12/01/2025, 03:05

250112-dlntlawjcj 10

Analysis

  • max time kernel
    900s
  • max time network
    840s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    12/01/2025, 09:31

General

  • Target

    7c66ba80afb8f7c244088b3913c0d8bb344bd77f75a6e989b5a222b8b6ece208N.exe

  • Size

    64KB

  • MD5

    a310cc04b62041888f7168a1154fc470

  • SHA1

    f565137db4db66aabb35665f05bd3a588ddeb01e

  • SHA256

    7c66ba80afb8f7c244088b3913c0d8bb344bd77f75a6e989b5a222b8b6ece208

  • SHA512

    7b7da4c34561d7cc597c148b2f91aea2a35d846a146cb5a6032f8d20e0366bcb1aebc43a0cdd45c65202793882d7de1b1d4de3846e443c8be2bef5789febcf75

  • SSDEEP

    1536:LAnX35lynODDRtC8fJcXT0/iBlYqbVPP5feFGckOggakAX7t:05COXmYJcXYalYUH5GFIOHAX7t

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

Mutex

oeSQUd5RFk09

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

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

  • Asyncrat family
  • Suspicious use of SetThreadContext 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7c66ba80afb8f7c244088b3913c0d8bb344bd77f75a6e989b5a222b8b6ece208N.exe
    C:\Users\Admin\AppData\Local\Temp\7c66ba80afb8f7c244088b3913c0d8bb344bd77f75a6e989b5a222b8b6ece208N.exe cmd /c %SIGILL% "SIGTERM|SIGKILL|SIGABRT"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1640
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:2412

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1640-0-0x0000000074B4E000-0x0000000074B4F000-memory.dmp

    Filesize

    4KB

  • memory/1640-1-0x00000000011B0000-0x00000000011C6000-memory.dmp

    Filesize

    88KB

  • memory/1640-2-0x0000000074B40000-0x000000007522E000-memory.dmp

    Filesize

    6.9MB

  • memory/1640-3-0x0000000074B40000-0x000000007522E000-memory.dmp

    Filesize

    6.9MB

  • memory/1640-4-0x00000000003F0000-0x0000000000404000-memory.dmp

    Filesize

    80KB

  • memory/1640-16-0x0000000074B40000-0x000000007522E000-memory.dmp

    Filesize

    6.9MB

  • memory/2412-11-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/2412-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2412-8-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/2412-7-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/2412-6-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/2412-5-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/2412-15-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/2412-13-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB