Analysis

  • max time kernel
    94s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/11/2024, 12:39

General

  • Target
    Payment Advice D 0024679526 3930.exe
  • Size 777KB
  • Sample241125-pvmtfatkhl
  • SHA256 fbc1981c8c4b453464e63ea2155aa74d2e6e6da1fd3268fd8b45e16c1d2bd0d2
  • MD5 SHA1 SHA512 SSDEEP
Score
8/10

Malware Config

Signatures

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 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.

  • 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 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • 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 20 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Payment Advice D 0024679526 3930.exe
    "C:\Users\Admin\AppData\Local\Temp\Payment Advice D 0024679526 3930.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4540
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Payment Advice D 0024679526 3930.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4192
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\OyXCaSLaAXfAKx.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1980
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\OyXCaSLaAXfAKx" /XML "C:\Users\Admin\AppData\Local\Temp\tmp376.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2904
    • C:\Users\Admin\AppData\Local\Temp\Payment Advice D 0024679526 3930.exe
      "C:\Users\Admin\AppData\Local\Temp\Payment Advice D 0024679526 3930.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:1400

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        powershell.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
        • Size 2KB
        • SHA256 6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69
        • MD5 SHA1 SHA512

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 18KB
        • SHA256 631a3cdc47f2c8d55c66df7c7569d332f31b78e424d25f839fbb447d8afaffab
        • MD5 SHA1 SHA512 SSDEEP

        __PSScriptPolicyTest_vzz12b2l.00y.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_vzz12b2l.00y.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512

        tmp376.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\tmp376.tmp
        • Size 1KB
        • SHA256 a04f1d81c8b07cab3c7fed544289821cfb99b49e857e781fade019ba37e99d4d
        • MD5 SHA1 SHA512

        memory/1400-36-0x0000000000400000-0x0000000000447000-memory.dmp

        memory/1980-77-0x0000000007740000-0x0000000007751000-memory.dmp

        memory/1980-79-0x0000000007780000-0x0000000007794000-memory.dmp

        memory/1980-78-0x0000000007770000-0x000000000777E000-memory.dmp

        memory/1980-80-0x0000000007870000-0x000000000788A000-memory.dmp

        memory/1980-76-0x00000000077A0000-0x0000000007836000-memory.dmp

        memory/1980-52-0x0000000074FF0000-0x000000007503C000-memory.dmp

        memory/1980-62-0x0000000007170000-0x000000000718E000-memory.dmp

        memory/1980-50-0x0000000007190000-0x00000000071C2000-memory.dmp

        memory/1980-81-0x0000000007860000-0x0000000007868000-memory.dmp

        memory/1980-35-0x0000000074760000-0x0000000074F10000-memory.dmp

        memory/1980-85-0x0000000074760000-0x0000000074F10000-memory.dmp

        memory/1980-34-0x0000000074760000-0x0000000074F10000-memory.dmp

        memory/4192-15-0x0000000002330000-0x0000000002366000-memory.dmp

        memory/4192-49-0x0000000005E60000-0x0000000005EAC000-memory.dmp

        memory/4192-22-0x0000000074760000-0x0000000074F10000-memory.dmp

        memory/4192-28-0x00000000056E0000-0x0000000005A34000-memory.dmp

        memory/4192-20-0x0000000004CD0000-0x0000000004D36000-memory.dmp

        memory/4192-19-0x0000000004BB0000-0x0000000004BD2000-memory.dmp

        memory/4192-18-0x0000000074760000-0x0000000074F10000-memory.dmp

        memory/4192-17-0x0000000004FB0000-0x00000000055D8000-memory.dmp

        memory/4192-21-0x0000000004DF0000-0x0000000004E56000-memory.dmp

        memory/4192-75-0x0000000007000000-0x000000000700A000-memory.dmp

        memory/4192-48-0x0000000005C60000-0x0000000005C7E000-memory.dmp

        memory/4192-16-0x0000000074760000-0x0000000074F10000-memory.dmp

        memory/4192-89-0x0000000074760000-0x0000000074F10000-memory.dmp

        memory/4192-82-0x0000000074760000-0x0000000074F10000-memory.dmp

        memory/4192-72-0x0000000006E40000-0x0000000006EE3000-memory.dmp

        memory/4192-51-0x0000000074FF0000-0x000000007503C000-memory.dmp

        memory/4192-74-0x0000000006F80000-0x0000000006F9A000-memory.dmp

        memory/4192-73-0x00000000075D0000-0x0000000007C4A000-memory.dmp

        memory/4540-47-0x0000000074760000-0x0000000074F10000-memory.dmp

        memory/4540-9-0x0000000074760000-0x0000000074F10000-memory.dmp

        memory/4540-8-0x00000000056F0000-0x0000000005702000-memory.dmp

        memory/4540-7-0x000000007476E000-0x000000007476F000-memory.dmp

        memory/4540-6-0x0000000005340000-0x00000000053DC000-memory.dmp

        memory/4540-5-0x0000000074760000-0x0000000074F10000-memory.dmp

        memory/4540-4-0x00000000050E0000-0x00000000050EA000-memory.dmp

        memory/4540-10-0x0000000006B00000-0x0000000006B92000-memory.dmp

        memory/4540-3-0x0000000005030000-0x00000000050C2000-memory.dmp

        memory/4540-2-0x0000000005730000-0x0000000005CD4000-memory.dmp

        memory/4540-1-0x00000000006B0000-0x0000000000778000-memory.dmp

        memory/4540-0-0x000000007476E000-0x000000007476F000-memory.dmp