Analysis

  • max time kernel
    134s
  • max time network
    117s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/05/2024, 12:15

General

  • Target
    Invoice.exe
  • Size 557KB
  • Sample240523-pexzgagg88
  • SHA256 3235c0cc1e4c983e8e11ad3f9fe6af66cf5cda2d4f4730f84cd290d877136b6c
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Credentials
  • Protocol

    smtp

  • Host

    mail.speedhouseoman.com

  • Port

    587

  • Password

    SpH@0084

Extracted

Family
  • snakekeylogger

Credentials
  • Protocol

    smtp

  • Host

    mail.speedhouseoman.com

  • Port

    587

  • Password

    SpH@0084

C2
  • https://scratchdreams.tk

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 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.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 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.

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

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Invoice.exe
    "C:\Users\Admin\AppData\Local\Temp\Invoice.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3264
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\xHctVCfBs.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1688
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xHctVCfBs" /XML "C:\Users\Admin\AppData\Local\Temp\tmp608F.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3424
    • C:\Users\Admin\AppData\Local\Temp\Invoice.exe
      "C:\Users\Admin\AppData\Local\Temp\Invoice.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:3232

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        Invoice.exe.log

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

        __PSScriptPolicyTest_4rdw24oh.hx4.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_4rdw24oh.hx4.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512

        tmp608F.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\tmp608F.tmp
        • Size 1KB
        • SHA256 f533a0ba0a65c4c8b1dfbc699604919c05d1b4e4f2fe5498a23cc22c8836755a
        • MD5 SHA1 SHA512

        memory/1688-54-0x00000000078E0000-0x0000000007F5A000-memory.dmp

        memory/1688-19-0x0000000004FB0000-0x0000000004FD2000-memory.dmp

        memory/1688-65-0x0000000075140000-0x00000000758F0000-memory.dmp

        memory/1688-62-0x00000000075B0000-0x00000000075B8000-memory.dmp

        memory/1688-61-0x00000000075D0000-0x00000000075EA000-memory.dmp

        memory/1688-60-0x00000000074D0000-0x00000000074E4000-memory.dmp

        memory/1688-59-0x00000000074C0000-0x00000000074CE000-memory.dmp

        memory/1688-58-0x0000000007490000-0x00000000074A1000-memory.dmp

        memory/1688-15-0x0000000002640000-0x0000000002676000-memory.dmp

        memory/1688-16-0x0000000075140000-0x00000000758F0000-memory.dmp

        memory/1688-17-0x0000000005490000-0x0000000005AB8000-memory.dmp

        memory/1688-18-0x0000000075140000-0x00000000758F0000-memory.dmp

        memory/1688-22-0x00000000050C0000-0x0000000005126000-memory.dmp

        memory/1688-57-0x0000000007510000-0x00000000075A6000-memory.dmp

        memory/1688-23-0x0000000075140000-0x00000000758F0000-memory.dmp

        memory/1688-56-0x0000000007300000-0x000000000730A000-memory.dmp

        memory/1688-29-0x0000000005AC0000-0x0000000005E14000-memory.dmp

        memory/1688-20-0x0000000005050000-0x00000000050B6000-memory.dmp

        memory/1688-55-0x0000000007290000-0x00000000072AA000-memory.dmp

        memory/1688-53-0x0000000007180000-0x0000000007223000-memory.dmp

        memory/1688-52-0x0000000006550000-0x000000000656E000-memory.dmp

        memory/1688-41-0x0000000007140000-0x0000000007172000-memory.dmp

        memory/1688-42-0x00000000759D0000-0x0000000075A1C000-memory.dmp

        memory/1688-39-0x0000000005F70000-0x0000000005F8E000-memory.dmp

        memory/1688-40-0x00000000063F0000-0x000000000643C000-memory.dmp

        memory/3232-31-0x0000000000400000-0x0000000000426000-memory.dmp

        memory/3232-69-0x0000000007180000-0x00000000076AC000-memory.dmp

        memory/3232-68-0x0000000006A80000-0x0000000006C42000-memory.dmp

        memory/3232-67-0x0000000006860000-0x00000000068B0000-memory.dmp

        memory/3232-37-0x0000000075140000-0x00000000758F0000-memory.dmp

        memory/3232-66-0x0000000075140000-0x00000000758F0000-memory.dmp

        memory/3264-9-0x0000000006D20000-0x0000000006D88000-memory.dmp

        memory/3264-2-0x0000000005D40000-0x00000000062E4000-memory.dmp

        memory/3264-3-0x0000000005830000-0x00000000058C2000-memory.dmp

        memory/3264-4-0x0000000005800000-0x000000000580A000-memory.dmp

        memory/3264-8-0x0000000005B80000-0x0000000005B90000-memory.dmp

        memory/3264-7-0x0000000005BA0000-0x0000000005BBA000-memory.dmp

        memory/3264-6-0x00000000063F0000-0x0000000006476000-memory.dmp

        memory/3264-5-0x0000000075140000-0x00000000758F0000-memory.dmp

        memory/3264-0-0x000000007514E000-0x000000007514F000-memory.dmp

        memory/3264-38-0x0000000075140000-0x00000000758F0000-memory.dmp

        memory/3264-10-0x00000000094E0000-0x000000000957C000-memory.dmp

        memory/3264-1-0x0000000000D80000-0x0000000000E10000-memory.dmp