Analysis

  • max time kernel
    147s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/11/2024, 04:40

General

  • Target

    4b68371dba131b97f5bce58054f59684.exe

  • Size

    834KB

  • MD5

    4b68371dba131b97f5bce58054f59684

  • SHA1

    0e4a34a65ff81594361188766039c1f2fa4c366a

  • SHA256

    66c525114240093bc408138d4c93c51e7c09a235e183fca73ee66ebd150e4fe1

  • SHA512

    898e2f9772146bd72934719e9b56ef40ecfb33e30a59ba1a911e2c14eb4feafab92ce68cfcd32f66ee05d7a34db58d3314e34045e038c3f0e1f6ca1b57066e20

  • SSDEEP

    12288:NaghZfmczzHzEn9k64vvAJyBJUwrh2YofbU2hHyMj1QEIl7:cg/fVHzEnvDCJTKvSMSEI

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\4b68371dba131b97f5bce58054f59684.exe
    "C:\Users\Admin\AppData\Local\Temp\4b68371dba131b97f5bce58054f59684.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2536
    • 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\4b68371dba131b97f5bce58054f59684.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2588
    • C:\Users\Admin\AppData\Local\Temp\4b68371dba131b97f5bce58054f59684.exe
      "C:\Users\Admin\AppData\Local\Temp\4b68371dba131b97f5bce58054f59684.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:3324

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\4b68371dba131b97f5bce58054f59684.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_jhpbbhfn.owz.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/2536-15-0x0000000074CF0000-0x00000000754A0000-memory.dmp

    Filesize

    7.7MB

  • memory/2536-3-0x00000000053F0000-0x0000000005482000-memory.dmp

    Filesize

    584KB

  • memory/2536-4-0x0000000005590000-0x000000000559A000-memory.dmp

    Filesize

    40KB

  • memory/2536-5-0x0000000005680000-0x000000000571C000-memory.dmp

    Filesize

    624KB

  • memory/2536-6-0x0000000074CF0000-0x00000000754A0000-memory.dmp

    Filesize

    7.7MB

  • memory/2536-7-0x0000000074CFE000-0x0000000074CFF000-memory.dmp

    Filesize

    4KB

  • memory/2536-8-0x0000000005970000-0x000000000598C000-memory.dmp

    Filesize

    112KB

  • memory/2536-9-0x0000000074CF0000-0x00000000754A0000-memory.dmp

    Filesize

    7.7MB

  • memory/2536-10-0x0000000002D40000-0x0000000002DCA000-memory.dmp

    Filesize

    552KB

  • memory/2536-2-0x00000000059A0000-0x0000000005F44000-memory.dmp

    Filesize

    5.6MB

  • memory/2536-1-0x0000000000920000-0x00000000009F6000-memory.dmp

    Filesize

    856KB

  • memory/2536-0-0x0000000074CFE000-0x0000000074CFF000-memory.dmp

    Filesize

    4KB

  • memory/2588-53-0x00000000070D0000-0x0000000007166000-memory.dmp

    Filesize

    600KB

  • memory/2588-57-0x0000000007080000-0x000000000708E000-memory.dmp

    Filesize

    56KB

  • memory/2588-18-0x0000000004D70000-0x0000000005398000-memory.dmp

    Filesize

    6.2MB

  • memory/2588-17-0x0000000074CF0000-0x00000000754A0000-memory.dmp

    Filesize

    7.7MB

  • memory/2588-19-0x0000000074CF0000-0x00000000754A0000-memory.dmp

    Filesize

    7.7MB

  • memory/2588-20-0x0000000074CF0000-0x00000000754A0000-memory.dmp

    Filesize

    7.7MB

  • memory/2588-21-0x0000000004C60000-0x0000000004C82000-memory.dmp

    Filesize

    136KB

  • memory/2588-22-0x0000000005450000-0x00000000054B6000-memory.dmp

    Filesize

    408KB

  • memory/2588-67-0x0000000074CF0000-0x00000000754A0000-memory.dmp

    Filesize

    7.7MB

  • memory/2588-62-0x0000000007170000-0x0000000007178000-memory.dmp

    Filesize

    32KB

  • memory/2588-61-0x0000000007190000-0x00000000071AA000-memory.dmp

    Filesize

    104KB

  • memory/2588-50-0x00000000074E0000-0x0000000007B5A000-memory.dmp

    Filesize

    6.5MB

  • memory/2588-35-0x0000000005420000-0x000000000543E000-memory.dmp

    Filesize

    120KB

  • memory/2588-36-0x0000000005B60000-0x0000000005BAC000-memory.dmp

    Filesize

    304KB

  • memory/2588-37-0x0000000006020000-0x0000000006052000-memory.dmp

    Filesize

    200KB

  • memory/2588-38-0x00000000705D0000-0x000000007061C000-memory.dmp

    Filesize

    304KB

  • memory/2588-48-0x0000000006060000-0x000000000607E000-memory.dmp

    Filesize

    120KB

  • memory/2588-49-0x0000000006BB0000-0x0000000006C53000-memory.dmp

    Filesize

    652KB

  • memory/2588-34-0x0000000005630000-0x0000000005984000-memory.dmp

    Filesize

    3.3MB

  • memory/2588-51-0x0000000006E60000-0x0000000006E7A000-memory.dmp

    Filesize

    104KB

  • memory/2588-52-0x0000000006EC0000-0x0000000006ECA000-memory.dmp

    Filesize

    40KB

  • memory/2588-24-0x00000000054C0000-0x0000000005526000-memory.dmp

    Filesize

    408KB

  • memory/2588-54-0x0000000007050000-0x0000000007061000-memory.dmp

    Filesize

    68KB

  • memory/2588-60-0x0000000007090000-0x00000000070A4000-memory.dmp

    Filesize

    80KB

  • memory/2588-56-0x0000000074CF0000-0x00000000754A0000-memory.dmp

    Filesize

    7.7MB

  • memory/2588-16-0x0000000000DF0000-0x0000000000E26000-memory.dmp

    Filesize

    216KB

  • memory/2588-58-0x0000000074CF0000-0x00000000754A0000-memory.dmp

    Filesize

    7.7MB

  • memory/2588-59-0x0000000074CF0000-0x00000000754A0000-memory.dmp

    Filesize

    7.7MB

  • memory/3324-55-0x0000000074CF0000-0x00000000754A0000-memory.dmp

    Filesize

    7.7MB

  • memory/3324-14-0x0000000074CF0000-0x00000000754A0000-memory.dmp

    Filesize

    7.7MB

  • memory/3324-11-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/3324-63-0x0000000006F10000-0x00000000070D2000-memory.dmp

    Filesize

    1.8MB

  • memory/3324-64-0x0000000006D90000-0x0000000006DE0000-memory.dmp

    Filesize

    320KB

  • memory/3324-23-0x0000000074CF0000-0x00000000754A0000-memory.dmp

    Filesize

    7.7MB