Analysis

  • max time kernel
    94s
  • max time network
    98s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/10/2024, 08:13

General

  • Target
    September payments.exe
  • Size 873KB
  • Sample241007-j4f5csvepj
  • SHA256 b1fb20d5857d1ca65dbacd6cb100dc2d7da8eb7ce54d4faeebafb2bbb212beca
  • 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.

  • Uses the VBS compiler for execution 1 TTPs
  • 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\September payments.exe
    "C:\Users\Admin\AppData\Local\Temp\September payments.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:2988
    • 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\September payments.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1092
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\YifGIcnmZiWfn.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1680
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YifGIcnmZiWfn" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD4F3.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:4220
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:2432

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 92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
        • MD5 SHA1 SHA512

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 18KB
        • SHA256 ad4f5b670335f4c9fcf4eaf245f4b7f65898085df1e832e7a927f927d1ad66a7
        • MD5 SHA1 SHA512 SSDEEP

        __PSScriptPolicyTest_kbid5oys.qkv.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_kbid5oys.qkv.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512

        tmpD4F3.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\tmpD4F3.tmp
        • Size 1KB
        • SHA256 2937c6a53845aadcfa4b04b9dc6043f1d6264babb2d7b9dd5e5de5a85612c556
        • MD5 SHA1 SHA512

        memory/1092-27-0x0000000074D10000-0x00000000754C0000-memory.dmp

        memory/1092-49-0x0000000005CA0000-0x0000000005CBE000-memory.dmp

        memory/1092-85-0x0000000074D10000-0x00000000754C0000-memory.dmp

        memory/1092-82-0x00000000072E0000-0x00000000072E8000-memory.dmp

        memory/1092-81-0x0000000007300000-0x000000000731A000-memory.dmp

        memory/1092-80-0x0000000007200000-0x0000000007214000-memory.dmp

        memory/1092-76-0x0000000007030000-0x000000000703A000-memory.dmp

        memory/1092-15-0x0000000004730000-0x0000000004766000-memory.dmp

        memory/1092-17-0x0000000004DA0000-0x00000000053C8000-memory.dmp

        memory/1092-16-0x0000000074D10000-0x00000000754C0000-memory.dmp

        memory/1092-18-0x0000000074D10000-0x00000000754C0000-memory.dmp

        memory/1092-73-0x0000000006E80000-0x0000000006F23000-memory.dmp

        memory/1092-51-0x0000000006260000-0x0000000006292000-memory.dmp

        memory/1092-22-0x00000000054D0000-0x0000000005536000-memory.dmp

        memory/1092-23-0x0000000005540000-0x00000000055A6000-memory.dmp

        memory/1092-21-0x0000000004CE0000-0x0000000004D02000-memory.dmp

        memory/1092-52-0x00000000755A0000-0x00000000755EC000-memory.dmp

        memory/1092-26-0x0000000005660000-0x00000000059B4000-memory.dmp

        memory/1092-63-0x0000000006240000-0x000000000625E000-memory.dmp

        memory/1092-50-0x0000000006100000-0x000000000614C000-memory.dmp

        memory/1680-75-0x0000000007760000-0x000000000777A000-memory.dmp

        memory/1680-77-0x00000000079E0000-0x0000000007A76000-memory.dmp

        memory/1680-24-0x0000000074D10000-0x00000000754C0000-memory.dmp

        memory/1680-89-0x0000000074D10000-0x00000000754C0000-memory.dmp

        memory/1680-62-0x00000000755A0000-0x00000000755EC000-memory.dmp

        memory/1680-79-0x0000000007990000-0x000000000799E000-memory.dmp

        memory/1680-78-0x0000000007960000-0x0000000007971000-memory.dmp

        memory/1680-20-0x0000000074D10000-0x00000000754C0000-memory.dmp

        memory/1680-19-0x0000000074D10000-0x00000000754C0000-memory.dmp

        memory/1680-74-0x0000000007DA0000-0x000000000841A000-memory.dmp

        memory/2432-37-0x0000000000400000-0x0000000000447000-memory.dmp

        memory/2988-3-0x0000000004C00000-0x0000000004C92000-memory.dmp

        memory/2988-10-0x000000000BBF0000-0x000000000BC8C000-memory.dmp

        memory/2988-39-0x0000000074D10000-0x00000000754C0000-memory.dmp

        memory/2988-4-0x0000000004B60000-0x0000000004B6A000-memory.dmp

        memory/2988-0-0x0000000074D1E000-0x0000000074D1F000-memory.dmp

        memory/2988-9-0x00000000045A0000-0x000000000462E000-memory.dmp

        memory/2988-8-0x0000000074D10000-0x00000000754C0000-memory.dmp

        memory/2988-7-0x0000000074D1E000-0x0000000074D1F000-memory.dmp

        memory/2988-6-0x0000000006240000-0x000000000625E000-memory.dmp

        memory/2988-2-0x0000000005110000-0x00000000056B4000-memory.dmp

        memory/2988-1-0x0000000000200000-0x00000000002E0000-memory.dmp

        memory/2988-5-0x0000000074D10000-0x00000000754C0000-memory.dmp