Analysis

  • max time kernel
    129s
  • max time network
    137s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-12-2024 10:50

General

  • Target

    obigfdsdf.exe

  • Size

    783KB

  • MD5

    4f80565082ea4d95d933decf9cd50c61

  • SHA1

    2830f9d5f41bbecd2ae105ed0b9a8d49327c8594

  • SHA256

    d854f347061d9d7b8a9788ab8633c3f07619e29bd440924507a0147484c217c3

  • SHA512

    9dcdae5c7a5b4181ade738884e208508bf317742ca2be0726716aa71236670a50dae2bec947b3fcc12cfc85c756810f18a9f403de4eb428b4a73a4759037f227

  • SSDEEP

    24576:cmCJVCABws3ok2B3KE0cZICs/dZvo7sK:cJ0ABsB1P0wICsVIs

Malware Config

Extracted

Family

vipkeylogger

Credentials

Signatures

  • VIPKeylogger

    VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.

  • Vipkeylogger family
  • 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 3 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
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\obigfdsdf.exe
    "C:\Users\Admin\AppData\Local\Temp\obigfdsdf.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1680
    • 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\obigfdsdf.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4584
    • C:\Users\Admin\AppData\Local\Temp\obigfdsdf.exe
      "C:\Users\Admin\AppData\Local\Temp\obigfdsdf.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:232

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\obigfdsdf.exe.log

    Filesize

    1KB

    MD5

    7ef67a0a2b1e31df887adcdaf86e4bbd

    SHA1

    348aad52be33f1a0c477e2ace332ecf91bb0e1a8

    SHA256

    af207d70281cc3264107da297e00ab97d0af2f055d6065ca5936cf69db6d783f

    SHA512

    4ffab7944ec049f2597bda791de5fd3ae3578b03ef019d2222850b8f5a298e3aae8b6e33f71c38e47132d63fb58ab1b03c876b9a01665bc8bbcf01466e7d79e1

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rspyolc1.eh4.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/232-11-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/232-14-0x0000000075350000-0x0000000075B00000-memory.dmp

    Filesize

    7.7MB

  • memory/232-65-0x0000000075350000-0x0000000075B00000-memory.dmp

    Filesize

    7.7MB

  • memory/232-64-0x0000000006430000-0x0000000006480000-memory.dmp

    Filesize

    320KB

  • memory/232-63-0x00000000065B0000-0x0000000006772000-memory.dmp

    Filesize

    1.8MB

  • memory/232-62-0x0000000075350000-0x0000000075B00000-memory.dmp

    Filesize

    7.7MB

  • memory/232-34-0x0000000075350000-0x0000000075B00000-memory.dmp

    Filesize

    7.7MB

  • memory/1680-5-0x0000000075350000-0x0000000075B00000-memory.dmp

    Filesize

    7.7MB

  • memory/1680-2-0x00000000056B0000-0x0000000005C54000-memory.dmp

    Filesize

    5.6MB

  • memory/1680-0-0x000000007535E000-0x000000007535F000-memory.dmp

    Filesize

    4KB

  • memory/1680-1-0x00000000006C0000-0x000000000078A000-memory.dmp

    Filesize

    808KB

  • memory/1680-9-0x0000000075350000-0x0000000075B00000-memory.dmp

    Filesize

    7.7MB

  • memory/1680-4-0x0000000005210000-0x00000000052AC000-memory.dmp

    Filesize

    624KB

  • memory/1680-6-0x00000000050C0000-0x00000000050CA000-memory.dmp

    Filesize

    40KB

  • memory/1680-7-0x0000000006840000-0x0000000006852000-memory.dmp

    Filesize

    72KB

  • memory/1680-10-0x0000000008620000-0x00000000086AE000-memory.dmp

    Filesize

    568KB

  • memory/1680-8-0x000000007535E000-0x000000007535F000-memory.dmp

    Filesize

    4KB

  • memory/1680-15-0x0000000075350000-0x0000000075B00000-memory.dmp

    Filesize

    7.7MB

  • memory/1680-3-0x0000000005020000-0x00000000050B2000-memory.dmp

    Filesize

    584KB

  • memory/4584-37-0x0000000006630000-0x0000000006662000-memory.dmp

    Filesize

    200KB

  • memory/4584-52-0x0000000007400000-0x000000000740A000-memory.dmp

    Filesize

    40KB

  • memory/4584-21-0x0000000005140000-0x00000000051A6000-memory.dmp

    Filesize

    408KB

  • memory/4584-20-0x0000000004FA0000-0x0000000004FC2000-memory.dmp

    Filesize

    136KB

  • memory/4584-18-0x0000000005310000-0x0000000005938000-memory.dmp

    Filesize

    6.2MB

  • memory/4584-35-0x0000000006070000-0x000000000608E000-memory.dmp

    Filesize

    120KB

  • memory/4584-36-0x0000000006350000-0x000000000639C000-memory.dmp

    Filesize

    304KB

  • memory/4584-19-0x0000000075350000-0x0000000075B00000-memory.dmp

    Filesize

    7.7MB

  • memory/4584-38-0x0000000070D80000-0x0000000070DCC000-memory.dmp

    Filesize

    304KB

  • memory/4584-48-0x0000000006670000-0x000000000668E000-memory.dmp

    Filesize

    120KB

  • memory/4584-49-0x0000000007070000-0x0000000007113000-memory.dmp

    Filesize

    652KB

  • memory/4584-50-0x00000000079E0000-0x000000000805A000-memory.dmp

    Filesize

    6.5MB

  • memory/4584-51-0x0000000007390000-0x00000000073AA000-memory.dmp

    Filesize

    104KB

  • memory/4584-22-0x0000000005A40000-0x0000000005AA6000-memory.dmp

    Filesize

    408KB

  • memory/4584-53-0x0000000007610000-0x00000000076A6000-memory.dmp

    Filesize

    600KB

  • memory/4584-54-0x0000000007590000-0x00000000075A1000-memory.dmp

    Filesize

    68KB

  • memory/4584-55-0x00000000075C0000-0x00000000075CE000-memory.dmp

    Filesize

    56KB

  • memory/4584-56-0x00000000075D0000-0x00000000075E4000-memory.dmp

    Filesize

    80KB

  • memory/4584-57-0x00000000076D0000-0x00000000076EA000-memory.dmp

    Filesize

    104KB

  • memory/4584-58-0x00000000076B0000-0x00000000076B8000-memory.dmp

    Filesize

    32KB

  • memory/4584-61-0x0000000075350000-0x0000000075B00000-memory.dmp

    Filesize

    7.7MB

  • memory/4584-17-0x0000000075350000-0x0000000075B00000-memory.dmp

    Filesize

    7.7MB

  • memory/4584-16-0x0000000002780000-0x00000000027B6000-memory.dmp

    Filesize

    216KB

  • memory/4584-32-0x0000000075350000-0x0000000075B00000-memory.dmp

    Filesize

    7.7MB

  • memory/4584-33-0x0000000005AB0000-0x0000000005E04000-memory.dmp

    Filesize

    3.3MB