Analysis

  • max time kernel
    143s
  • max time network
    144s
  • 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 06:57

General

  • Target

    blhbZrtqbLg6O1K.exe

  • Size

    699KB

  • MD5

    32317fa8ed09561ea6de5ee91c3a971d

  • SHA1

    a1dc40e480493d39a2335963e6d0f1e6bf9fea82

  • SHA256

    117f1bc3d9a04cc8bbc9b0f681745c480f6744ddebd5879e32a05e7c7b3c492f

  • SHA512

    49d43a2adaa04895025cba7810bcb6b980930e20307e5d8684c89b58e23e59639ded7e6a3396c54aa0475dd9f046de617f2cb16d7cf37263a1b643f7adf274c6

  • SSDEEP

    12288:gMyCGMZQ3C68gTcIeW0XS0v9q2nrGFBoK4cqDzcBFz8tcLwUjbc0Y7o:gMyQZF2T0XS0VHGFBoK4cq34Fotcdny

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\blhbZrtqbLg6O1K.exe
    "C:\Users\Admin\AppData\Local\Temp\blhbZrtqbLg6O1K.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2388
    • 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\blhbZrtqbLg6O1K.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4120
    • C:\Users\Admin\AppData\Local\Temp\blhbZrtqbLg6O1K.exe
      "C:\Users\Admin\AppData\Local\Temp\blhbZrtqbLg6O1K.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:3988

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\blhbZrtqbLg6O1K.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_xmhxjnub.krj.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/2388-6-0x0000000074B00000-0x00000000752B0000-memory.dmp

    Filesize

    7.7MB

  • memory/2388-3-0x0000000005820000-0x00000000058B2000-memory.dmp

    Filesize

    584KB

  • memory/2388-4-0x00000000058E0000-0x00000000058EA000-memory.dmp

    Filesize

    40KB

  • memory/2388-5-0x0000000005B20000-0x0000000005BBC000-memory.dmp

    Filesize

    624KB

  • memory/2388-15-0x0000000074B00000-0x00000000752B0000-memory.dmp

    Filesize

    7.7MB

  • memory/2388-7-0x0000000005AF0000-0x0000000005B02000-memory.dmp

    Filesize

    72KB

  • memory/2388-8-0x0000000074B0E000-0x0000000074B0F000-memory.dmp

    Filesize

    4KB

  • memory/2388-9-0x0000000074B00000-0x00000000752B0000-memory.dmp

    Filesize

    7.7MB

  • memory/2388-10-0x0000000006E40000-0x0000000006ECE000-memory.dmp

    Filesize

    568KB

  • memory/2388-0-0x0000000074B0E000-0x0000000074B0F000-memory.dmp

    Filesize

    4KB

  • memory/2388-2-0x0000000005EB0000-0x0000000006454000-memory.dmp

    Filesize

    5.6MB

  • memory/2388-1-0x0000000000D90000-0x0000000000E46000-memory.dmp

    Filesize

    728KB

  • memory/3988-27-0x0000000074B00000-0x00000000752B0000-memory.dmp

    Filesize

    7.7MB

  • memory/3988-14-0x0000000074B00000-0x00000000752B0000-memory.dmp

    Filesize

    7.7MB

  • memory/3988-65-0x0000000074B00000-0x00000000752B0000-memory.dmp

    Filesize

    7.7MB

  • memory/3988-64-0x00000000066C0000-0x0000000006710000-memory.dmp

    Filesize

    320KB

  • memory/3988-63-0x0000000006830000-0x00000000069F2000-memory.dmp

    Filesize

    1.8MB

  • memory/3988-62-0x0000000074B00000-0x00000000752B0000-memory.dmp

    Filesize

    7.7MB

  • memory/3988-11-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/4120-48-0x00000000074E0000-0x00000000074FE000-memory.dmp

    Filesize

    120KB

  • memory/4120-52-0x00000000078A0000-0x00000000078AA000-memory.dmp

    Filesize

    40KB

  • memory/4120-33-0x0000000074B00000-0x00000000752B0000-memory.dmp

    Filesize

    7.7MB

  • memory/4120-32-0x0000000005F70000-0x00000000062C4000-memory.dmp

    Filesize

    3.3MB

  • memory/4120-34-0x0000000006500000-0x000000000651E000-memory.dmp

    Filesize

    120KB

  • memory/4120-36-0x0000000074B00000-0x00000000752B0000-memory.dmp

    Filesize

    7.7MB

  • memory/4120-35-0x0000000006550000-0x000000000659C000-memory.dmp

    Filesize

    304KB

  • memory/4120-37-0x0000000006AD0000-0x0000000006B02000-memory.dmp

    Filesize

    200KB

  • memory/4120-16-0x0000000002BE0000-0x0000000002C16000-memory.dmp

    Filesize

    216KB

  • memory/4120-38-0x0000000070530000-0x000000007057C000-memory.dmp

    Filesize

    304KB

  • memory/4120-49-0x0000000007500000-0x00000000075A3000-memory.dmp

    Filesize

    652KB

  • memory/4120-50-0x0000000007E70000-0x00000000084EA000-memory.dmp

    Filesize

    6.5MB

  • memory/4120-51-0x0000000007830000-0x000000000784A000-memory.dmp

    Filesize

    104KB

  • memory/4120-25-0x0000000005E20000-0x0000000005E86000-memory.dmp

    Filesize

    408KB

  • memory/4120-53-0x0000000007AB0000-0x0000000007B46000-memory.dmp

    Filesize

    600KB

  • memory/4120-54-0x0000000007A30000-0x0000000007A41000-memory.dmp

    Filesize

    68KB

  • memory/4120-55-0x0000000007A60000-0x0000000007A6E000-memory.dmp

    Filesize

    56KB

  • memory/4120-56-0x0000000007A70000-0x0000000007A84000-memory.dmp

    Filesize

    80KB

  • memory/4120-57-0x0000000007B70000-0x0000000007B8A000-memory.dmp

    Filesize

    104KB

  • memory/4120-58-0x0000000007B50000-0x0000000007B58000-memory.dmp

    Filesize

    32KB

  • memory/4120-61-0x0000000074B00000-0x00000000752B0000-memory.dmp

    Filesize

    7.7MB

  • memory/4120-26-0x0000000005F00000-0x0000000005F66000-memory.dmp

    Filesize

    408KB

  • memory/4120-19-0x0000000005650000-0x0000000005672000-memory.dmp

    Filesize

    136KB

  • memory/4120-17-0x00000000056C0000-0x0000000005CE8000-memory.dmp

    Filesize

    6.2MB

  • memory/4120-18-0x0000000074B00000-0x00000000752B0000-memory.dmp

    Filesize

    7.7MB