Analysis

  • max time kernel
    149s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/06/2024, 01:56

General

  • Target
    cb22cebed97d6363239f63cf28816b8a8c06977c6d8625a43a61f0afa8823b26.exe
  • Size 748KB
  • Sample240630-cc2tesvhrr
  • SHA256 cb22cebed97d6363239f63cf28816b8a8c06977c6d8625a43a61f0afa8823b26
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • xworm

C2
  • head-experimental.gl.at.ply.gg:46178

  • best-bird.gl.at.ply.gg:27196

  • super-nearest.gl.at.ply.gg:17835

  • wiz.bounceme.net:6000

Attributes
  • install_file

    USB.exe

aes.plain

Extracted

Family
  • asyncrat

Botnet
  • Default

C2
  • finally-grande.gl.at.ply.gg:25844

Attributes
  • delay

    1

  • install

    false

  • install_folder

    %AppData%

aes.plain

Extracted

Family
  • quasar

Version
  • 3.1.5

Botnet
  • Slave

C2
  • stop-largely.gl.at.ply.gg:27116

Mutex
  • $Sxr-kl1r656AGsPQksTmi8

Attributes
  • encryption_key

    ql4fQ8TV9ZFP9vRX2myA

  • install_name

    $sxr~Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    $77STARTUP~MSF

  • subdirectory

    $sxr~SubDir

Signatures

  • AsyncRat

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

  • Detect Xworm Payload 7 IoCs
  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar payload 2 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Async RAT payload 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 6 IoCs

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

  • Checks computer location settings 2 TTPs 5 IoCs

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

  • Executes dropped EXE 7 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

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

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

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 15 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 35 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cb22cebed97d6363239f63cf28816b8a8c06977c6d8625a43a61f0afa8823b26.exe
    "C:\Users\Admin\AppData\Local\Temp\cb22cebed97d6363239f63cf28816b8a8c06977c6d8625a43a61f0afa8823b26.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4064
    • C:\Users\Admin\AppData\Local\Temp\Part1.exe
      "C:\Users\Admin\AppData\Local\Temp\Part1.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4448
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Part1.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2856
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Part1.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious use of AdjustPrivilegeToken
        PID:3000
    • C:\Users\Admin\AppData\Local\Temp\Part2.exe
      "C:\Users\Admin\AppData\Local\Temp\Part2.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:2604
      • C:\Users\Admin\AppData\Local\Temp\Part 1.exe
        "C:\Users\Admin\AppData\Local\Temp\Part 1.exe"
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2860
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Part 1.exe'
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3956
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Part 1.exe'
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious use of AdjustPrivilegeToken
          PID:884
      • C:\Users\Admin\AppData\Local\Temp\Part 2.exe
        "C:\Users\Admin\AppData\Local\Temp\Part 2.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2140
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks" /create /tn "$77STARTUP~MSF" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\Part 2.exe" /rl HIGHEST /f
          4⤵
          • Scheduled Task/Job: Scheduled Task
          PID:772
      • C:\Users\Admin\AppData\Local\Temp\Part 3.exe
        "C:\Users\Admin\AppData\Local\Temp\Part 3.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:216
      • C:\Users\Admin\AppData\Local\Temp\Part 4.exe
        "C:\Users\Admin\AppData\Local\Temp\Part 4.exe"
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3632
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Part 4.exe'
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1972
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Part 4.exe'
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious use of AdjustPrivilegeToken
          PID:4264
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpB32E.tmp.bat""
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1332
          • C:\Windows\system32\timeout.exe
            timeout 3
            5⤵
            • Delays execution with timeout.exe
            PID:3136
      • C:\Users\Admin\AppData\Local\Temp\Windows PowerShell.exe
        "C:\Users\Admin\AppData\Local\Temp\Windows PowerShell.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4392
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3820 --field-trial-handle=2264,i,15001568551143786084,90255922961447677,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:5024

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          powershell.exe.log

          • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
          • Size 2KB
          • SHA256 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
          • MD5 SHA1 SHA512

          StartupProfileData-NonInteractive

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
          • Size 944B
          • SHA256 95d79fd575bbd21540e378fcbc1cd00d16f51af62ce15bae7080bb72c24e2010
          • MD5 SHA1 SHA512

          StartupProfileData-NonInteractive

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
          • Size 944B
          • SHA256 3b4780cb2e226f4b05643c0b512960e694f21b35bbbe84d5c5e97628e1f8909c
          • MD5 SHA1 SHA512

          StartupProfileData-NonInteractive

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
          • Size 944B
          • SHA256 b2ff191507379930b97a212f869c3774c20b274e8fc9fcc96da5c154fb0e3056
          • MD5 SHA1 SHA512

          Part 1.exe

          • Path C:\Users\Admin\AppData\Local\Temp\Part 1.exe
          • Size 67KB
          • SHA256 91431cb73305e0f1fdc698907301b6d312a350f667c50765615672e7f10a68f2
          • MD5 SHA1 SHA512 SSDEEP

          Part 2.exe

          • Path C:\Users\Admin\AppData\Local\Temp\Part 2.exe
          • Size 409KB
          • SHA256 021068ac225e479b124c33d9e7582c17fdea6e625b165b79e2c818479d8094e4
          • MD5 SHA1 SHA512 SSDEEP

          Part 3.exe

          • Path C:\Users\Admin\AppData\Local\Temp\Part 3.exe
          • Size 63KB
          • SHA256 29e13a91af9b0ac77e9b7f8b0c26e5702f46bd8aea0333ca2d191d1d09c70c5d
          • MD5 SHA1 SHA512 SSDEEP

          Part 4.exe

          • Path C:\Users\Admin\AppData\Local\Temp\Part 4.exe
          • Size 79KB
          • SHA256 4834d31394f19d42e8d2a035b4c3c9c36441340ea19fe766396848ecfb608960
          • MD5 SHA1 SHA512 SSDEEP

          Part1.exe

          • Path C:\Users\Admin\AppData\Local\Temp\Part1.exe
          • Size 74KB
          • SHA256 ecb87965ad5fdc76a30721226b1cb8a6263bbbce476a0446ff730b6399022998
          • MD5 SHA1 SHA512 SSDEEP

          Part2.exe

          • Path C:\Users\Admin\AppData\Local\Temp\Part2.exe
          • Size 661KB
          • SHA256 429c5dd3f4af9dcaa0ebaefda12281af7c84b3e3aa05d1034ddf89d2bdefb720
          • MD5 SHA1 SHA512 SSDEEP

          Windows PowerShell.exe

          • Path C:\Users\Admin\AppData\Local\Temp\Windows PowerShell.exe
          • Size 27KB
          • SHA256 25510f3aa1b879ea92a3cba9583d73e447b8765bae6dfcc4954bb72df5beaa7f
          • MD5 SHA1 SHA512 SSDEEP

          __PSScriptPolicyTest_wq4uwbe3.sl3.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_wq4uwbe3.sl3.ps1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512

          tmpB32E.tmp.bat

          • Path C:\Users\Admin\AppData\Local\Temp\tmpB32E.tmp.bat
          • Size 158B
          • SHA256 5a67c947e5ea2552960568a02770e18e0a5b839116f4769d6a78b14a4bdde6c8
          • MD5 SHA1 SHA512

          memory/216-71-0x0000000000640000-0x0000000000656000-memory.dmp

          memory/2140-93-0x0000000000C70000-0x0000000000CDC000-memory.dmp

          memory/2140-104-0x0000000005B90000-0x0000000006134000-memory.dmp

          memory/2140-170-0x0000000007280000-0x000000000728A000-memory.dmp

          memory/2140-168-0x0000000006B30000-0x0000000006B6C000-memory.dmp

          memory/2140-167-0x00000000066F0000-0x0000000006702000-memory.dmp

          memory/2140-153-0x0000000005AC0000-0x0000000005B26000-memory.dmp

          memory/2140-124-0x0000000005720000-0x00000000057B2000-memory.dmp

          memory/2604-27-0x00000000006E0000-0x000000000078C000-memory.dmp

          memory/2604-87-0x000000001B300000-0x000000001B4A9000-memory.dmp

          memory/2604-30-0x00007FFD774B0000-0x00007FFD77F71000-memory.dmp

          memory/2604-88-0x00007FFD774B0000-0x00007FFD77F71000-memory.dmp

          memory/2856-99-0x0000029B6F190000-0x0000029B6F1B2000-memory.dmp

          memory/2860-44-0x0000000000C70000-0x0000000000C88000-memory.dmp

          memory/2860-171-0x000000001CFA0000-0x000000001CFAE000-memory.dmp

          memory/3632-173-0x0000000002D40000-0x0000000002D4C000-memory.dmp

          memory/3632-86-0x0000000000CA0000-0x0000000000CBA000-memory.dmp

          memory/4064-0-0x00007FFD774B3000-0x00007FFD774B5000-memory.dmp

          memory/4064-26-0x000000001B220000-0x000000001B3C9000-memory.dmp

          memory/4064-1-0x0000000000510000-0x00000000005D2000-memory.dmp

          memory/4392-92-0x00000000004A0000-0x00000000004AE000-memory.dmp

          memory/4392-123-0x0000000000E10000-0x0000000000E20000-memory.dmp

          memory/4448-29-0x00007FFD774B0000-0x00007FFD77F71000-memory.dmp

          memory/4448-91-0x00007FFD774B0000-0x00007FFD77F71000-memory.dmp

          memory/4448-172-0x00007FFD774B0000-0x00007FFD77F71000-memory.dmp

          memory/4448-16-0x00000000004F0000-0x0000000000508000-memory.dmp