Overview

overview

10

Static

static

10

svchost23.exe

windows7-x64

10

svchost23.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    146s
  • 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, 16:34

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    svchost23.exe
  • Size 63KB
  • Sample240731-t23wfstall
  • SHA256 ffe2d2e6b930f0b8f752d2a478d77cfbf9467006d294474fe33970a8c529b75a
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
asyncratdefaultrat

Malware Config

Extracted

Family

  • asyncrat

Version

  • 1.2

Botnet

  • Default

C2

  • stores-less.gl.at.ply.gg:45080

Mutex

  • AtomRatMutex_penka

Attributes
  • delay

    1

  • install

    true

  • install_file

    svchost.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

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

    ratasyncrat
  • Async RAT payload 1 IoCs
    rat
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Delays execution with timeout.exe 1 IoCs
    evasion
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistenceexecution
  • Suspicious behavior: EnumeratesProcesses 21 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\svchost23.exe
    "C:\Users\Admin\AppData\Local\Temp\svchost23.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3188
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3864
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:3828
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpE8AA.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1584
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:4180
      • C:\Users\Admin\AppData\Roaming\svchost.exe
        "C:\Users\Admin\AppData\Roaming\svchost.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:3520

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        tmpE8AA.tmp.bat
        • Path C:\Users\Admin\AppData\Local\Temp\tmpE8AA.tmp.bat
        • Size 151B
        • SHA256 0a4d91a68b56660a931a5bf8e38cf5e5b14ec2c22d8e42bebcc903d906faef0f
        • MD5 SHA1 SHA512
        Submit Download

        svchost.exe
        • Path C:\Users\Admin\AppData\Roaming\svchost.exe
        • Size 63KB
        • SHA256 ffe2d2e6b930f0b8f752d2a478d77cfbf9467006d294474fe33970a8c529b75a
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        memory/3188-0-0x00007FF8B1643000-0x00007FF8B1645000-memory.dmp
        Download

        memory/3188-1-0x000001E65E8F0000-0x000001E65E906000-memory.dmp
        Download

        memory/3188-2-0x00007FF8B1640000-0x00007FF8B2101000-memory.dmp
        Download

        memory/3188-7-0x00007FF8B1640000-0x00007FF8B2101000-memory.dmp
        Download