Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-11-2024 18:50

General

  • Target

    3f1a1db52a4fc4fcdcf257626740eb9662546e6a17592d575e4ad2bac6a3748b.exe

  • Size

    719KB

  • MD5

    6ba1202e18f970ce89c7b6462db64884

  • SHA1

    0d525a908dff61f4bbd02b4b1d206160bdffe8bc

  • SHA256

    3f1a1db52a4fc4fcdcf257626740eb9662546e6a17592d575e4ad2bac6a3748b

  • SHA512

    22e785170c12ffd8aab80b633e3c8806b000959c31e55243def82eb541783686c14076091f7be14d1485912a6c745b041e40536a265969e3282a2bd5a93ff172

  • SSDEEP

    12288:OMfzuybrVagnUtLYXGAMZKUwPZk1ad6BAKIJwNdbwbIvaHkR:OsVvGLGMkU8ks4AKISkbEP

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 2 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 5 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 18 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3f1a1db52a4fc4fcdcf257626740eb9662546e6a17592d575e4ad2bac6a3748b.exe
    "C:\Users\Admin\AppData\Local\Temp\3f1a1db52a4fc4fcdcf257626740eb9662546e6a17592d575e4ad2bac6a3748b.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:2400
    • 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\3f1a1db52a4fc4fcdcf257626740eb9662546e6a17592d575e4ad2bac6a3748b.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:560
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ZzEKJhWAzrhtW.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3316
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZzEKJhWAzrhtW" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF472.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:1296
    • C:\Users\Admin\AppData\Local\Temp\3f1a1db52a4fc4fcdcf257626740eb9662546e6a17592d575e4ad2bac6a3748b.exe
      "C:\Users\Admin\AppData\Local\Temp\3f1a1db52a4fc4fcdcf257626740eb9662546e6a17592d575e4ad2bac6a3748b.exe"
      2⤵
        PID:1160
      • C:\Users\Admin\AppData\Local\Temp\3f1a1db52a4fc4fcdcf257626740eb9662546e6a17592d575e4ad2bac6a3748b.exe
        "C:\Users\Admin\AppData\Local\Temp\3f1a1db52a4fc4fcdcf257626740eb9662546e6a17592d575e4ad2bac6a3748b.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:2152

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      2KB

      MD5

      968cb9309758126772781b83adb8a28f

      SHA1

      8da30e71accf186b2ba11da1797cf67f8f78b47c

      SHA256

      92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

      SHA512

      4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

      Filesize

      18KB

      MD5

      743802f05d9802bdb21db7892b4c9602

      SHA1

      0eff40fc38bd1d1dbf6ce803ebafafa59cb4b22a

      SHA256

      ba1fcab0618cba92b34f1e1c6dfacea5d97be4ad16ad23e49e38e8f6165e6be9

      SHA512

      615a1b26e033550e2d4f73dd1df49a4982ea64ff592e164db4af682033ee1a1140082b735b74bf089eb234ad4a1c131b66b85918724771ce3b66f5c1d392b865

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_esnfxi13.mik.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmpF472.tmp

      Filesize

      1KB

      MD5

      93fcb026e0f7850c4a810825b528ba04

      SHA1

      bf677747cbf5b65e48d5a35011eddab15994320f

      SHA256

      9287ce3d008ff96974a2acfdcebaa95905d99312060044dbec704f46e6b75c46

      SHA512

      cfbfd7cc13e95dc029c8a06775c5eddcad8f7333eb7b965a7e5a644a2d1196256550d8888cd05d717e1077d6b924aada2e5508bd6ba49c7c17524df9c3344fad

    • memory/560-31-0x0000000075140000-0x00000000758F0000-memory.dmp

      Filesize

      7.7MB

    • memory/560-22-0x0000000005580000-0x00000000055E6000-memory.dmp

      Filesize

      408KB

    • memory/560-88-0x0000000075140000-0x00000000758F0000-memory.dmp

      Filesize

      7.7MB

    • memory/560-64-0x0000000071820000-0x000000007186C000-memory.dmp

      Filesize

      304KB

    • memory/560-49-0x0000000006570000-0x000000000658E000-memory.dmp

      Filesize

      120KB

    • memory/560-79-0x0000000007AE0000-0x0000000007AEE000-memory.dmp

      Filesize

      56KB

    • memory/560-23-0x0000000005D60000-0x0000000005DC6000-memory.dmp

      Filesize

      408KB

    • memory/560-15-0x0000000005010000-0x0000000005046000-memory.dmp

      Filesize

      216KB

    • memory/560-17-0x0000000005680000-0x0000000005CA8000-memory.dmp

      Filesize

      6.2MB

    • memory/560-16-0x0000000075140000-0x00000000758F0000-memory.dmp

      Filesize

      7.7MB

    • memory/560-18-0x0000000075140000-0x00000000758F0000-memory.dmp

      Filesize

      7.7MB

    • memory/560-21-0x00000000054E0000-0x0000000005502000-memory.dmp

      Filesize

      136KB

    • memory/560-32-0x0000000005FD0000-0x0000000006324000-memory.dmp

      Filesize

      3.3MB

    • memory/560-50-0x0000000006600000-0x000000000664C000-memory.dmp

      Filesize

      304KB

    • memory/2152-91-0x0000000006230000-0x0000000006280000-memory.dmp

      Filesize

      320KB

    • memory/2152-90-0x0000000006390000-0x0000000006552000-memory.dmp

      Filesize

      1.8MB

    • memory/2152-37-0x0000000000400000-0x0000000000448000-memory.dmp

      Filesize

      288KB

    • memory/2400-4-0x0000000075140000-0x00000000758F0000-memory.dmp

      Filesize

      7.7MB

    • memory/2400-3-0x00000000049A0000-0x0000000004A32000-memory.dmp

      Filesize

      584KB

    • memory/2400-5-0x0000000004A40000-0x0000000004A4A000-memory.dmp

      Filesize

      40KB

    • memory/2400-0-0x000000007514E000-0x000000007514F000-memory.dmp

      Filesize

      4KB

    • memory/2400-10-0x0000000004420000-0x00000000044AC000-memory.dmp

      Filesize

      560KB

    • memory/2400-7-0x0000000004E50000-0x0000000004E6E000-memory.dmp

      Filesize

      120KB

    • memory/2400-9-0x0000000075140000-0x00000000758F0000-memory.dmp

      Filesize

      7.7MB

    • memory/2400-8-0x000000007514E000-0x000000007514F000-memory.dmp

      Filesize

      4KB

    • memory/2400-1-0x0000000000020000-0x00000000000D6000-memory.dmp

      Filesize

      728KB

    • memory/2400-2-0x0000000004EB0000-0x0000000005454000-memory.dmp

      Filesize

      5.6MB

    • memory/2400-48-0x0000000075140000-0x00000000758F0000-memory.dmp

      Filesize

      7.7MB

    • memory/2400-6-0x0000000004C90000-0x0000000004D2C000-memory.dmp

      Filesize

      624KB

    • memory/3316-24-0x0000000075140000-0x00000000758F0000-memory.dmp

      Filesize

      7.7MB

    • memory/3316-75-0x0000000007750000-0x000000000776A000-memory.dmp

      Filesize

      104KB

    • memory/3316-74-0x0000000007DA0000-0x000000000841A000-memory.dmp

      Filesize

      6.5MB

    • memory/3316-76-0x00000000077C0000-0x00000000077CA000-memory.dmp

      Filesize

      40KB

    • memory/3316-77-0x00000000079D0000-0x0000000007A66000-memory.dmp

      Filesize

      600KB

    • memory/3316-78-0x0000000007950000-0x0000000007961000-memory.dmp

      Filesize

      68KB

    • memory/3316-52-0x0000000071820000-0x000000007186C000-memory.dmp

      Filesize

      304KB

    • memory/3316-80-0x0000000007990000-0x00000000079A4000-memory.dmp

      Filesize

      80KB

    • memory/3316-81-0x0000000007A90000-0x0000000007AAA000-memory.dmp

      Filesize

      104KB

    • memory/3316-82-0x0000000007A70000-0x0000000007A78000-memory.dmp

      Filesize

      32KB

    • memory/3316-62-0x00000000073B0000-0x00000000073CE000-memory.dmp

      Filesize

      120KB

    • memory/3316-89-0x0000000075140000-0x00000000758F0000-memory.dmp

      Filesize

      7.7MB

    • memory/3316-63-0x0000000007630000-0x00000000076D3000-memory.dmp

      Filesize

      652KB

    • memory/3316-51-0x00000000073F0000-0x0000000007422000-memory.dmp

      Filesize

      200KB

    • memory/3316-33-0x0000000075140000-0x00000000758F0000-memory.dmp

      Filesize

      7.7MB

    • memory/3316-19-0x0000000075140000-0x00000000758F0000-memory.dmp

      Filesize

      7.7MB