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Analysis

  • max time kernel
    94s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/12/2024, 18:01

General

  • Target

    0731d232d0af12a5320238914de6bf4a.exe

  • Size

    412KB

  • MD5

    0731d232d0af12a5320238914de6bf4a

  • SHA1

    41b1d57292fa942352373e587a638011893649ab

  • SHA256

    adc6b85fbb55624cdd9a25d9634f08d3991ac60dce86c8f3ed520a88e36371fe

  • SHA512

    a1af80997ce12df93cd17be40f78cfaced5fda36e1a601819e7e0790fa1efba13c2f818d45f83290707e3ac8e1fc54fea7f2d6a17640e83da5ba816ee629a436

  • SSDEEP

    6144:y+YH9d/Ucs7XgCbXTFm2HTMFyowl07iLC0Ga2wdyRwIfjc6YRjd66Al:y5HUcaX5Lxm2atlf0Ga2NRwI7YJbAl

Malware Config

Extracted

Family

asyncrat

Version

AWS | RxR

Botnet

EXE JDIDD

C2

5sdf23d2sdf.ddnss.eu:6606

5sdf23d2sdf.ddnss.eu:7707

5sdf23d2sdf.ddnss.eu:8808

Mutex

AsyncMutex_6SI8OkPnk

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
  • UAC bypass 3 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 2 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Windows security modification 2 TTPs 3 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0731d232d0af12a5320238914de6bf4a.exe
    "C:\Users\Admin\AppData\Local\Temp\0731d232d0af12a5320238914de6bf4a.exe"
    1⤵
    • UAC bypass
    • Windows security bypass
    • Checks computer location settings
    • Windows security modification
    • Checks whether UAC is enabled
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:4980
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\0731d232d0af12a5320238914de6bf4a.exe" -Force
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2540
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"
      2⤵
        PID:4752
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe"
        2⤵
          PID:3616
        • 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:3528
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
          2⤵
            PID:3524

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_xfharxqh.yft.ps1

          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

        • memory/2540-20-0x00007FFEF9FB0000-0x00007FFEFAA71000-memory.dmp

          Filesize

          10.8MB

        • memory/2540-16-0x00007FFEF9FB0000-0x00007FFEFAA71000-memory.dmp

          Filesize

          10.8MB

        • memory/2540-15-0x00007FFEF9FB0000-0x00007FFEFAA71000-memory.dmp

          Filesize

          10.8MB

        • memory/2540-4-0x00007FFEF9FB0000-0x00007FFEFAA71000-memory.dmp

          Filesize

          10.8MB

        • memory/2540-12-0x000001E2FE150000-0x000001E2FE172000-memory.dmp

          Filesize

          136KB

        • memory/3528-17-0x0000000000400000-0x0000000000416000-memory.dmp

          Filesize

          88KB

        • memory/3528-24-0x0000000005A60000-0x0000000005AFC000-memory.dmp

          Filesize

          624KB

        • memory/3528-25-0x00000000060B0000-0x0000000006654000-memory.dmp

          Filesize

          5.6MB

        • memory/3528-26-0x0000000005B70000-0x0000000005BD6000-memory.dmp

          Filesize

          408KB

        • memory/4980-3-0x00007FFEF9FB0000-0x00007FFEFAA71000-memory.dmp

          Filesize

          10.8MB

        • memory/4980-2-0x000001ED49B00000-0x000001ED49B68000-memory.dmp

          Filesize

          416KB

        • memory/4980-0-0x00007FFEF9FB3000-0x00007FFEF9FB5000-memory.dmp

          Filesize

          8KB

        • memory/4980-1-0x000001ED47D30000-0x000001ED47D9A000-memory.dmp

          Filesize

          424KB

        • memory/4980-21-0x00007FFEF9FB0000-0x00007FFEFAA71000-memory.dmp

          Filesize

          10.8MB