Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240730-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-07-2024 04:15

General

  • Target

    SecuriteInfo.com.BackDoor.AsyncRATNET.2.12461.30500.exe

  • Size

    419KB

  • MD5

    7bfbbceb7b5955b77334d3fd947830f9

  • SHA1

    18f911e8c337868796bfd42710ef4f19e7d3b4b2

  • SHA256

    40025bd40e62004c2a2f31221052acb79559faceca5c05284d7fd7e25d2a369e

  • SHA512

    c1369e0af059762dfa9f8135de5665f5f897ce9cee7db1aa71dc29b475dfc7c8d39f1ed0840433ceda743fa4faae2713354b51e79da05fa881498564d9a01e36

  • SSDEEP

    12288:Ly2GFBmLlT2VTBor8/Qj/hR0zJgxexjTmyhW0k4:JtLou3

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Default

C2

162.212.158.246:22

Mutex

DcRatMutex_qwqdanchun

Attributes
  • delay

    1

  • install

    false

  • install_file

    Edge_UpdatePack1.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

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

  • Async RAT payload 1 IoCs
  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 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 42 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.AsyncRATNET.2.12461.30500.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.AsyncRATNET.2.12461.30500.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:1532
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1532 -s 1340
      2⤵
      • Program crash
      PID:3856
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 1532 -ip 1532
    1⤵
      PID:456

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1532-0-0x000000007523E000-0x000000007523F000-memory.dmp

      Filesize

      4KB

    • memory/1532-1-0x0000000000810000-0x000000000087E000-memory.dmp

      Filesize

      440KB

    • memory/1532-2-0x0000000005160000-0x0000000005186000-memory.dmp

      Filesize

      152KB

    • memory/1532-3-0x0000000075230000-0x00000000759E0000-memory.dmp

      Filesize

      7.7MB

    • memory/1532-4-0x0000000005250000-0x00000000052B6000-memory.dmp

      Filesize

      408KB

    • memory/1532-5-0x0000000075230000-0x00000000759E0000-memory.dmp

      Filesize

      7.7MB