Analysis

  • max time kernel
    94s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16/01/2025, 21:02

General

  • Target

    a5ef9edcea30f251660ee2126b07d5b9ec416a9b3dbecb4ce84206e75271506f.exe

  • Size

    3.1MB

  • MD5

    ed9f57a7b0f31b5a7f5c3662f82f2965

  • SHA1

    04bd78f04abe3315ef26446ab01519e973ec0b8b

  • SHA256

    a5ef9edcea30f251660ee2126b07d5b9ec416a9b3dbecb4ce84206e75271506f

  • SHA512

    bca1118ee6a8b72212c0e93240441048a7fa72c52f308b695bf98f5bba4b140dd6be7ed7fe3d84591b1e43c2348086aff37e9967a837099e32ad9dc93ae542f1

  • SSDEEP

    49152:EGaTIbtCaIw+SgS9Xei/uNVz0aC+1RAeQK:zQCNZajvAeQK

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Default

C2

85.31.47.59:8848

Mutex

DcRatMutex_qwqdanchun

Attributes
  • delay

    1

  • install

    false

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

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

  • Asyncrat family
  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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 behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a5ef9edcea30f251660ee2126b07d5b9ec416a9b3dbecb4ce84206e75271506f.exe
    "C:\Users\Admin\AppData\Local\Temp\a5ef9edcea30f251660ee2126b07d5b9ec416a9b3dbecb4ce84206e75271506f.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2548
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:3816

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2548-1-0x00000000007E0000-0x0000000000809000-memory.dmp

    Filesize

    164KB

  • memory/2548-4-0x0000000000C10000-0x0000000000C68000-memory.dmp

    Filesize

    352KB

  • memory/3816-2-0x00000000746DE000-0x00000000746DF000-memory.dmp

    Filesize

    4KB

  • memory/3816-3-0x0000000000F10000-0x0000000000F22000-memory.dmp

    Filesize

    72KB

  • memory/3816-5-0x0000000003420000-0x0000000003430000-memory.dmp

    Filesize

    64KB

  • memory/3816-8-0x0000000006320000-0x00000000063BC000-memory.dmp

    Filesize

    624KB

  • memory/3816-9-0x0000000006970000-0x0000000006F14000-memory.dmp

    Filesize

    5.6MB

  • memory/3816-10-0x00000000063C0000-0x0000000006426000-memory.dmp

    Filesize

    408KB

  • memory/3816-11-0x00000000717C5000-0x00000000717C6000-memory.dmp

    Filesize

    4KB

  • memory/3816-12-0x00000000746DE000-0x00000000746DF000-memory.dmp

    Filesize

    4KB