Analysis

  • max time kernel
    126s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-12-2024 11:55

General

  • Target

    obigfdsdf.exe

  • Size

    692KB

  • MD5

    66ff1390c2cb8e18a5ed550f8dce6a34

  • SHA1

    17f102c8ec11b0435b158ed898f9d95f2cd31638

  • SHA256

    bc4f57934371fb9a46fe4ca5166ab1a4e16d523c4a43c28e4a7eded85839166b

  • SHA512

    ae1c0e214b31d4613e74b4c59f2d670cf32a039c2eb0cf92a1c2b71a652c436c891a3abc52a1ea80ef4c7cff1cf009ccc2149cb2765ed596b48e8f84cee242fd

  • SSDEEP

    12288:a3HI6t/p4clg97O1fD19dU7V0Um5h2gc/aYFHXIR76vZ6tFJnYrCdpqIRInTzp:UHIE/uogs1zUPmfSaYF4Ri65nCdIgv

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:2888
    • 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:4968
    • 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:624

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_z03egxw1.qxb.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/624-32-0x0000000074C90000-0x0000000075440000-memory.dmp

    Filesize

    7.7MB

  • memory/624-11-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/624-64-0x0000000074C90000-0x0000000075440000-memory.dmp

    Filesize

    7.7MB

  • memory/624-62-0x0000000006410000-0x00000000065D2000-memory.dmp

    Filesize

    1.8MB

  • memory/624-63-0x00000000062B0000-0x0000000006300000-memory.dmp

    Filesize

    320KB

  • memory/624-15-0x0000000074C90000-0x0000000075440000-memory.dmp

    Filesize

    7.7MB

  • memory/2888-5-0x0000000074C90000-0x0000000075440000-memory.dmp

    Filesize

    7.7MB

  • memory/2888-1-0x0000000000A40000-0x0000000000AF2000-memory.dmp

    Filesize

    712KB

  • memory/2888-10-0x0000000008320000-0x00000000083AE000-memory.dmp

    Filesize

    568KB

  • memory/2888-8-0x0000000074C9E000-0x0000000074C9F000-memory.dmp

    Filesize

    4KB

  • memory/2888-2-0x0000000005B40000-0x00000000060E4000-memory.dmp

    Filesize

    5.6MB

  • memory/2888-7-0x0000000005890000-0x00000000058A2000-memory.dmp

    Filesize

    72KB

  • memory/2888-14-0x0000000074C90000-0x0000000075440000-memory.dmp

    Filesize

    7.7MB

  • memory/2888-4-0x0000000005630000-0x00000000056CC000-memory.dmp

    Filesize

    624KB

  • memory/2888-0-0x0000000074C9E000-0x0000000074C9F000-memory.dmp

    Filesize

    4KB

  • memory/2888-9-0x0000000074C90000-0x0000000075440000-memory.dmp

    Filesize

    7.7MB

  • memory/2888-3-0x0000000005590000-0x0000000005622000-memory.dmp

    Filesize

    584KB

  • memory/2888-6-0x0000000005710000-0x000000000571A000-memory.dmp

    Filesize

    40KB

  • memory/4968-36-0x0000000005B20000-0x0000000005B6C000-memory.dmp

    Filesize

    304KB

  • memory/4968-51-0x0000000006DA0000-0x0000000006DBA000-memory.dmp

    Filesize

    104KB

  • memory/4968-20-0x0000000004BD0000-0x0000000004C36000-memory.dmp

    Filesize

    408KB

  • memory/4968-21-0x0000000005430000-0x0000000005496000-memory.dmp

    Filesize

    408KB

  • memory/4968-18-0x0000000074C90000-0x0000000075440000-memory.dmp

    Filesize

    7.7MB

  • memory/4968-34-0x0000000074C90000-0x0000000075440000-memory.dmp

    Filesize

    7.7MB

  • memory/4968-35-0x0000000005A80000-0x0000000005A9E000-memory.dmp

    Filesize

    120KB

  • memory/4968-33-0x0000000074C90000-0x0000000075440000-memory.dmp

    Filesize

    7.7MB

  • memory/4968-37-0x0000000006040000-0x0000000006072000-memory.dmp

    Filesize

    200KB

  • memory/4968-38-0x00000000706A0000-0x00000000706EC000-memory.dmp

    Filesize

    304KB

  • memory/4968-48-0x0000000006A40000-0x0000000006A5E000-memory.dmp

    Filesize

    120KB

  • memory/4968-49-0x0000000006A60000-0x0000000006B03000-memory.dmp

    Filesize

    652KB

  • memory/4968-50-0x00000000073E0000-0x0000000007A5A000-memory.dmp

    Filesize

    6.5MB

  • memory/4968-19-0x00000000049B0000-0x00000000049D2000-memory.dmp

    Filesize

    136KB

  • memory/4968-52-0x0000000006E10000-0x0000000006E1A000-memory.dmp

    Filesize

    40KB

  • memory/4968-53-0x0000000007020000-0x00000000070B6000-memory.dmp

    Filesize

    600KB

  • memory/4968-54-0x0000000006FA0000-0x0000000006FB1000-memory.dmp

    Filesize

    68KB

  • memory/4968-55-0x0000000006FD0000-0x0000000006FDE000-memory.dmp

    Filesize

    56KB

  • memory/4968-56-0x0000000006FE0000-0x0000000006FF4000-memory.dmp

    Filesize

    80KB

  • memory/4968-57-0x00000000070E0000-0x00000000070FA000-memory.dmp

    Filesize

    104KB

  • memory/4968-58-0x00000000070C0000-0x00000000070C8000-memory.dmp

    Filesize

    32KB

  • memory/4968-61-0x0000000074C90000-0x0000000075440000-memory.dmp

    Filesize

    7.7MB

  • memory/4968-31-0x00000000054A0000-0x00000000057F4000-memory.dmp

    Filesize

    3.3MB

  • memory/4968-17-0x0000000004C50000-0x0000000005278000-memory.dmp

    Filesize

    6.2MB

  • memory/4968-16-0x0000000002150000-0x0000000002186000-memory.dmp

    Filesize

    216KB