Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20251016-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20251016-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/12/2025, 16:12

General

  • Target
    1a895996e3edf28787c2076049c1ec3ce137824bfbdff3dc6e5e020077762c85.exe
  • Size 625KB
  • Sample251208-tnn55seq4t
  • SHA256 1a895996e3edf28787c2076049c1ec3ce137824bfbdff3dc6e5e020077762c85
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • snakekeylogger

Credentials

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 1 IoCs
  • Snakekeylogger family
  • 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 4 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Looks up external IP address via web service 4 IoCs

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

  • SmartAssembly .NET packer 1 IoCs

    Detects SmartAssembly .NET packer.

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 12 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 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1a895996e3edf28787c2076049c1ec3ce137824bfbdff3dc6e5e020077762c85.exe
    "C:\Users\Admin\AppData\Local\Temp\1a895996e3edf28787c2076049c1ec3ce137824bfbdff3dc6e5e020077762c85.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: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\buKXeBnOeqf.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4032
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\buKXeBnOeqf" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDFE0.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:4348
    • C:\Users\Admin\AppData\Local\Temp\1a895996e3edf28787c2076049c1ec3ce137824bfbdff3dc6e5e020077762c85.exe
      "C:\Users\Admin\AppData\Local\Temp\1a895996e3edf28787c2076049c1ec3ce137824bfbdff3dc6e5e020077762c85.exe"
      2⤵
      • Checks computer location settings
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2896
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 3 & Del "C:\Users\Admin\AppData\Local\Temp\1a895996e3edf28787c2076049c1ec3ce137824bfbdff3dc6e5e020077762c85.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2552
        • C:\Windows\SysWOW64\choice.exe
          choice /C Y /N /D Y /T 3
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2044
  • C:\Users\Admin\AppData\Roaming\buKXeBnOeqf.exe
    C:\Users\Admin\AppData\Roaming\buKXeBnOeqf.exe
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3428
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\buKXeBnOeqf.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3640
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\buKXeBnOeqf" /XML "C:\Users\Admin\AppData\Local\Temp\tmp25B3.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:3136
    • C:\Users\Admin\AppData\Roaming\buKXeBnOeqf.exe
      "C:\Users\Admin\AppData\Roaming\buKXeBnOeqf.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:836
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 3 & Del "C:\Users\Admin\AppData\Roaming\buKXeBnOeqf.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1680
        • C:\Windows\SysWOW64\choice.exe
          choice /C Y /N /D Y /T 3
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2316

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        1a895996e3edf28787c2076049c1ec3ce137824bfbdff3dc6e5e020077762c85.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\1a895996e3edf28787c2076049c1ec3ce137824bfbdff3dc6e5e020077762c85.exe.log
        • Size 1KB
        • SHA256 7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
        • MD5 SHA1 SHA512

        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 f9271de21506d56fdd632e89812491f65dcbfedbdf0f28f521afd8708927c4ee
        • MD5 SHA1 SHA512 SSDEEP

        __PSScriptPolicyTest_z32iz5m5.0vv.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_z32iz5m5.0vv.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512

        tmpDFE0.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\tmpDFE0.tmp
        • Size 1KB
        • SHA256 ea20b6aff7be171b4598ad37b6ffe4c9c016d0204f346134d43960576161628b
        • MD5 SHA1 SHA512

        buKXeBnOeqf.exe

        • Path C:\Users\Admin\AppData\Roaming\buKXeBnOeqf.exe
        • Size 625KB
        • SHA256 1a895996e3edf28787c2076049c1ec3ce137824bfbdff3dc6e5e020077762c85
        • MD5 SHA1 SHA512 SSDEEP

        memory/2896-20-0x00000000057E0000-0x00000000057F0000-memory.dmp

        memory/2896-17-0x0000000000400000-0x0000000000426000-memory.dmp

        memory/3640-83-0x00000000078A0000-0x0000000007943000-memory.dmp

        memory/3640-75-0x0000000070240000-0x000000007028C000-memory.dmp

        memory/3640-74-0x00000000066A0000-0x00000000066EC000-memory.dmp

        memory/3640-70-0x0000000006020000-0x0000000006374000-memory.dmp

        memory/3640-84-0x0000000007B60000-0x0000000007B71000-memory.dmp

        memory/3640-85-0x0000000007BA0000-0x0000000007BB4000-memory.dmp

        memory/4032-34-0x0000000005FE0000-0x0000000005FFE000-memory.dmp

        memory/4032-55-0x00000000075A0000-0x00000000075A8000-memory.dmp

        memory/4032-21-0x0000000005030000-0x0000000005052000-memory.dmp

        memory/4032-22-0x00000000058C0000-0x0000000005926000-memory.dmp

        memory/4032-23-0x00000000059A0000-0x0000000005A06000-memory.dmp

        memory/4032-15-0x0000000002840000-0x0000000002850000-memory.dmp

        memory/4032-31-0x0000000005B10000-0x0000000005E64000-memory.dmp

        memory/4032-13-0x0000000002840000-0x0000000002850000-memory.dmp

        memory/4032-14-0x00000000026C0000-0x00000000026F6000-memory.dmp

        memory/4032-35-0x0000000006020000-0x000000000606C000-memory.dmp

        memory/4032-37-0x000000006FE20000-0x000000006FE6C000-memory.dmp

        memory/4032-36-0x00000000071B0000-0x00000000071E2000-memory.dmp

        memory/4032-45-0x00000000065D0000-0x00000000065EE000-memory.dmp

        memory/4032-46-0x00000000071F0000-0x0000000007293000-memory.dmp

        memory/4032-48-0x0000000007320000-0x000000000733A000-memory.dmp

        memory/4032-47-0x0000000007970000-0x0000000007FEA000-memory.dmp

        memory/4032-49-0x0000000007380000-0x000000000738A000-memory.dmp

        memory/4032-50-0x00000000075B0000-0x0000000007646000-memory.dmp

        memory/4032-51-0x0000000007520000-0x0000000007531000-memory.dmp

        memory/4032-52-0x0000000007550000-0x000000000755E000-memory.dmp

        memory/4032-53-0x0000000007560000-0x0000000007574000-memory.dmp

        memory/4032-54-0x0000000007670000-0x000000000768A000-memory.dmp

        memory/4032-18-0x0000000005290000-0x00000000058B8000-memory.dmp

        memory/4192-0-0x0000000000FC0000-0x0000000001060000-memory.dmp

        memory/4192-8-0x0000000007900000-0x0000000007964000-memory.dmp

        memory/4192-7-0x00000000059C0000-0x00000000059D0000-memory.dmp

        memory/4192-6-0x00000000070B0000-0x00000000070BE000-memory.dmp

        memory/4192-5-0x00000000070D0000-0x000000000716C000-memory.dmp

        memory/4192-4-0x0000000005C00000-0x0000000005C0A000-memory.dmp

        memory/4192-3-0x00000000059C0000-0x00000000059D0000-memory.dmp

        memory/4192-2-0x0000000005A60000-0x0000000005AF2000-memory.dmp

        memory/4192-1-0x0000000006010000-0x00000000065B4000-memory.dmp