Analysis

  • max time kernel
    142s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-05-2024 01:04

General

  • Target

    Invoice.exe

  • Size

    557KB

  • MD5

    7ccea594742ef8616d4329ae4b13d65f

  • SHA1

    2cc66eb1781ca1389e5b961f6904ba819770cf62

  • SHA256

    3235c0cc1e4c983e8e11ad3f9fe6af66cf5cda2d4f4730f84cd290d877136b6c

  • SHA512

    59eef8e1cbedf34393b262f3d84e61a67e552db3ce8d95c492d5559449694d2d6324882c84b844d496b2ae9a7a81dd42df81b6a0a4ff74a8c02e964a680d4a3d

  • SSDEEP

    12288:dVTlZnKl3tPs75yJfVtHNrx8ACBUtjKxisU9zJDs1K4YJHg6gi/:nZZKlCYJdBN98AC65izUrow9H+i

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.speedhouseoman.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    SpH@0084

Extracted

Family

snakekeylogger

Credentials

  • Protocol:
    smtp
  • Host:
    mail.speedhouseoman.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    SpH@0084
C2

https://scratchdreams.tk

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 1 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs
  • Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs
  • Detects executables with potential process hoocking 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 6 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:4484
    • 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:1020
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xHctVCfBs" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDE93.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4960
    • 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:2376
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3592 --field-trial-handle=2328,i,5873823382323802923,13134441441264702821,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:1812

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_5f3wt4qr.kon.ps1
      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmpDE93.tmp
      Filesize

      1KB

      MD5

      88fc53bb0c44fa956149772f23e8eb11

      SHA1

      66cc2e767c920447973ceec02436ee548408873f

      SHA256

      3d9b1e56c808b4ce95892a0040e38c996d56ef609d2655772bfdff61a855c018

      SHA512

      820df14ec40739c49431fea6b8ab5fb3eae79f7ee21101580894b3154d2627b0732f055cf9448b0bfe8a16a6cecab3f8f0b25d0dc73f504cd71fbc11c69c75e6

    • memory/1020-58-0x0000000007A70000-0x0000000007B06000-memory.dmp
      Filesize

      600KB

    • memory/1020-55-0x0000000007E60000-0x00000000084DA000-memory.dmp
      Filesize

      6.5MB

    • memory/1020-67-0x0000000074E00000-0x00000000755B0000-memory.dmp
      Filesize

      7.7MB

    • memory/1020-64-0x0000000007B10000-0x0000000007B18000-memory.dmp
      Filesize

      32KB

    • memory/1020-63-0x0000000007B30000-0x0000000007B4A000-memory.dmp
      Filesize

      104KB

    • memory/1020-62-0x0000000007A30000-0x0000000007A44000-memory.dmp
      Filesize

      80KB

    • memory/1020-61-0x0000000007A20000-0x0000000007A2E000-memory.dmp
      Filesize

      56KB

    • memory/1020-60-0x0000000074E00000-0x00000000755B0000-memory.dmp
      Filesize

      7.7MB

    • memory/1020-59-0x00000000079F0000-0x0000000007A01000-memory.dmp
      Filesize

      68KB

    • memory/1020-57-0x0000000007870000-0x000000000787A000-memory.dmp
      Filesize

      40KB

    • memory/1020-56-0x0000000007800000-0x000000000781A000-memory.dmp
      Filesize

      104KB

    • memory/1020-17-0x0000000004EB0000-0x0000000004EE6000-memory.dmp
      Filesize

      216KB

    • memory/1020-18-0x0000000074E00000-0x00000000755B0000-memory.dmp
      Filesize

      7.7MB

    • memory/1020-40-0x0000000006470000-0x000000000648E000-memory.dmp
      Filesize

      120KB

    • memory/1020-20-0x0000000074E00000-0x00000000755B0000-memory.dmp
      Filesize

      7.7MB

    • memory/1020-54-0x0000000007670000-0x0000000007713000-memory.dmp
      Filesize

      652KB

    • memory/1020-53-0x0000000006970000-0x000000000698E000-memory.dmp
      Filesize

      120KB

    • memory/1020-43-0x00000000708B0000-0x00000000708FC000-memory.dmp
      Filesize

      304KB

    • memory/1020-42-0x00000000069D0000-0x0000000006A02000-memory.dmp
      Filesize

      200KB

    • memory/1020-25-0x0000000005380000-0x00000000053A2000-memory.dmp
      Filesize

      136KB

    • memory/1020-27-0x0000000005420000-0x0000000005486000-memory.dmp
      Filesize

      408KB

    • memory/1020-28-0x0000000005C60000-0x0000000005CC6000-memory.dmp
      Filesize

      408KB

    • memory/1020-35-0x0000000005E40000-0x0000000006194000-memory.dmp
      Filesize

      3.3MB

    • memory/1020-41-0x0000000006500000-0x000000000654C000-memory.dmp
      Filesize

      304KB

    • memory/1020-21-0x0000000005530000-0x0000000005B58000-memory.dmp
      Filesize

      6.2MB

    • memory/2376-70-0x0000000006BD0000-0x0000000006D92000-memory.dmp
      Filesize

      1.8MB

    • memory/2376-68-0x0000000074E00000-0x00000000755B0000-memory.dmp
      Filesize

      7.7MB

    • memory/2376-71-0x00000000072D0000-0x00000000077FC000-memory.dmp
      Filesize

      5.2MB

    • memory/2376-24-0x0000000074E00000-0x00000000755B0000-memory.dmp
      Filesize

      7.7MB

    • memory/2376-34-0x0000000074E00000-0x00000000755B0000-memory.dmp
      Filesize

      7.7MB

    • memory/2376-22-0x0000000000400000-0x0000000000426000-memory.dmp
      Filesize

      152KB

    • memory/2376-69-0x00000000069B0000-0x0000000006A00000-memory.dmp
      Filesize

      320KB

    • memory/4484-9-0x0000000006490000-0x00000000064A0000-memory.dmp
      Filesize

      64KB

    • memory/4484-6-0x0000000004F70000-0x0000000004F7A000-memory.dmp
      Filesize

      40KB

    • memory/4484-0-0x0000000074E0E000-0x0000000074E0F000-memory.dmp
      Filesize

      4KB

    • memory/4484-10-0x00000000069E0000-0x0000000006A48000-memory.dmp
      Filesize

      416KB

    • memory/4484-3-0x0000000004DD0000-0x0000000004E62000-memory.dmp
      Filesize

      584KB

    • memory/4484-8-0x00000000064B0000-0x00000000064CA000-memory.dmp
      Filesize

      104KB

    • memory/4484-7-0x0000000006400000-0x0000000006486000-memory.dmp
      Filesize

      536KB

    • memory/4484-11-0x00000000090C0000-0x000000000915C000-memory.dmp
      Filesize

      624KB

    • memory/4484-5-0x0000000074E0E000-0x0000000074E0F000-memory.dmp
      Filesize

      4KB

    • memory/4484-4-0x0000000074E00000-0x00000000755B0000-memory.dmp
      Filesize

      7.7MB

    • memory/4484-12-0x0000000074E00000-0x00000000755B0000-memory.dmp
      Filesize

      7.7MB

    • memory/4484-2-0x00000000052E0000-0x0000000005884000-memory.dmp
      Filesize

      5.6MB

    • memory/4484-1-0x0000000000350000-0x00000000003E0000-memory.dmp
      Filesize

      576KB

    • memory/4484-26-0x0000000074E00000-0x00000000755B0000-memory.dmp
      Filesize

      7.7MB