Analysis

  • max time kernel
    122s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-12-2024 11:03

General

  • Target

    4733c3841f338c4b95b5226678de7358eaf8604750ee3aa3c3d55ce829db11b3.exe

  • Size

    885KB

  • MD5

    bf49fb7c260b15a61c5849a49fdee343

  • SHA1

    059f7b0a2d5f6b18a06f9ccd2995a7ecb9d69b14

  • SHA256

    4733c3841f338c4b95b5226678de7358eaf8604750ee3aa3c3d55ce829db11b3

  • SHA512

    325b8b7c2337493a69160532187177cd8c1bdb0bf341738d1f980f0367fbf68b20693c45721fc9bdf24d5552dfbe144f81607bb5aa68bd778a6e4851f826c938

  • SSDEEP

    12288:PM8dqyq2Kn6B6L/U0uQMf0zR6B8e40fh4E7joIHMopRdeCiL3Oc7mMPku+l0CPP+:kE9BGM0Sf+6arU7jPfvbiL+cZPd+p+

Malware Config

Extracted

Family

vipkeylogger

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.

  • Disables Task Manager via registry modification
  • 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4733c3841f338c4b95b5226678de7358eaf8604750ee3aa3c3d55ce829db11b3.exe
    "C:\Users\Admin\AppData\Local\Temp\4733c3841f338c4b95b5226678de7358eaf8604750ee3aa3c3d55ce829db11b3.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:1884
    • 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\4733c3841f338c4b95b5226678de7358eaf8604750ee3aa3c3d55ce829db11b3.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5068
    • C:\Users\Admin\AppData\Local\Temp\4733c3841f338c4b95b5226678de7358eaf8604750ee3aa3c3d55ce829db11b3.exe
      "C:\Users\Admin\AppData\Local\Temp\4733c3841f338c4b95b5226678de7358eaf8604750ee3aa3c3d55ce829db11b3.exe"
      2⤵
        PID:2056
      • C:\Users\Admin\AppData\Local\Temp\4733c3841f338c4b95b5226678de7358eaf8604750ee3aa3c3d55ce829db11b3.exe
        "C:\Users\Admin\AppData\Local\Temp\4733c3841f338c4b95b5226678de7358eaf8604750ee3aa3c3d55ce829db11b3.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:4988

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\4733c3841f338c4b95b5226678de7358eaf8604750ee3aa3c3d55ce829db11b3.exe.log

      Filesize

      1KB

      MD5

      b7b9acb869ccc7f7ecb5304ec0384dee

      SHA1

      6a90751c95817903ee833d59a0abbef425a613b3

      SHA256

      8cb00a15cd942a1861c573d86d6fb430512c8e2f80f6349f48b16b8709ca7aa4

      SHA512

      7bec881ac5f59ac26f1be1e7e26d63f040c06369de10c1c246e531a4395d27c335d9acc647ecdedb48ed37bdc2dc405a4cfc11762e1c00659a49be259eaf8764

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_50pwczv5.max.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • memory/1884-10-0x00000000044E0000-0x000000000456E000-memory.dmp

      Filesize

      568KB

    • memory/1884-11-0x000000000D2D0000-0x000000000D36C000-memory.dmp

      Filesize

      624KB

    • memory/1884-4-0x0000000004D00000-0x0000000005054000-memory.dmp

      Filesize

      3.3MB

    • memory/1884-5-0x0000000005150000-0x000000000515A000-memory.dmp

      Filesize

      40KB

    • memory/1884-6-0x0000000075180000-0x0000000075930000-memory.dmp

      Filesize

      7.7MB

    • memory/1884-7-0x0000000006650000-0x0000000006676000-memory.dmp

      Filesize

      152KB

    • memory/1884-8-0x000000007518E000-0x000000007518F000-memory.dmp

      Filesize

      4KB

    • memory/1884-9-0x0000000075180000-0x0000000075930000-memory.dmp

      Filesize

      7.7MB

    • memory/1884-0-0x000000007518E000-0x000000007518F000-memory.dmp

      Filesize

      4KB

    • memory/1884-3-0x0000000004B30000-0x0000000004BC2000-memory.dmp

      Filesize

      584KB

    • memory/1884-1-0x0000000000070000-0x0000000000154000-memory.dmp

      Filesize

      912KB

    • memory/1884-2-0x00000000051A0000-0x0000000005744000-memory.dmp

      Filesize

      5.6MB

    • memory/1884-16-0x0000000075180000-0x0000000075930000-memory.dmp

      Filesize

      7.7MB

    • memory/4988-15-0x0000000075180000-0x0000000075930000-memory.dmp

      Filesize

      7.7MB

    • memory/4988-65-0x0000000006360000-0x00000000063B0000-memory.dmp

      Filesize

      320KB

    • memory/4988-64-0x0000000006530000-0x00000000066F2000-memory.dmp

      Filesize

      1.8MB

    • memory/4988-63-0x0000000075180000-0x0000000075930000-memory.dmp

      Filesize

      7.7MB

    • memory/4988-12-0x0000000000400000-0x0000000000448000-memory.dmp

      Filesize

      288KB

    • memory/4988-21-0x0000000075180000-0x0000000075930000-memory.dmp

      Filesize

      7.7MB

    • memory/5068-24-0x0000000004DF0000-0x0000000004E56000-memory.dmp

      Filesize

      408KB

    • memory/5068-52-0x0000000006E90000-0x0000000006EAA000-memory.dmp

      Filesize

      104KB

    • memory/5068-20-0x0000000075180000-0x0000000075930000-memory.dmp

      Filesize

      7.7MB

    • memory/5068-30-0x0000000005620000-0x0000000005974000-memory.dmp

      Filesize

      3.3MB

    • memory/5068-35-0x0000000075180000-0x0000000075930000-memory.dmp

      Filesize

      7.7MB

    • memory/5068-22-0x0000000004BB0000-0x0000000004BD2000-memory.dmp

      Filesize

      136KB

    • memory/5068-36-0x0000000005B70000-0x0000000005B8E000-memory.dmp

      Filesize

      120KB

    • memory/5068-37-0x0000000005BA0000-0x0000000005BEC000-memory.dmp

      Filesize

      304KB

    • memory/5068-38-0x0000000006130000-0x0000000006162000-memory.dmp

      Filesize

      200KB

    • memory/5068-39-0x0000000070C10000-0x0000000070C5C000-memory.dmp

      Filesize

      304KB

    • memory/5068-49-0x0000000006190000-0x00000000061AE000-memory.dmp

      Filesize

      120KB

    • memory/5068-50-0x0000000006B60000-0x0000000006C03000-memory.dmp

      Filesize

      652KB

    • memory/5068-51-0x00000000074E0000-0x0000000007B5A000-memory.dmp

      Filesize

      6.5MB

    • memory/5068-23-0x0000000004CD0000-0x0000000004D36000-memory.dmp

      Filesize

      408KB

    • memory/5068-53-0x0000000006F00000-0x0000000006F0A000-memory.dmp

      Filesize

      40KB

    • memory/5068-54-0x0000000007130000-0x00000000071C6000-memory.dmp

      Filesize

      600KB

    • memory/5068-55-0x00000000070B0000-0x00000000070C1000-memory.dmp

      Filesize

      68KB

    • memory/5068-56-0x00000000070E0000-0x00000000070EE000-memory.dmp

      Filesize

      56KB

    • memory/5068-57-0x00000000070F0000-0x0000000007104000-memory.dmp

      Filesize

      80KB

    • memory/5068-58-0x00000000071F0000-0x000000000720A000-memory.dmp

      Filesize

      104KB

    • memory/5068-59-0x00000000071D0000-0x00000000071D8000-memory.dmp

      Filesize

      32KB

    • memory/5068-62-0x0000000075180000-0x0000000075930000-memory.dmp

      Filesize

      7.7MB

    • memory/5068-18-0x0000000075180000-0x0000000075930000-memory.dmp

      Filesize

      7.7MB

    • memory/5068-19-0x0000000004EF0000-0x0000000005518000-memory.dmp

      Filesize

      6.2MB

    • memory/5068-17-0x0000000000DD0000-0x0000000000E06000-memory.dmp

      Filesize

      216KB