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Analysis

  • max time kernel
    134s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/01/2025, 04:12

General

  • Target

    c7a9a258ebcce8d059be3d43911b8150cba636c9111224f29924460ffaf0bf33.exe

  • Size

    836KB

  • MD5

    c2fed4eb83e71081a2d50875a519cdd8

  • SHA1

    7dd2cc60334b0eabe6dea6576c0456b6aac05b0a

  • SHA256

    c7a9a258ebcce8d059be3d43911b8150cba636c9111224f29924460ffaf0bf33

  • SHA512

    75482be16caf260dae875d43428cd0f465f85e31def79afcbd69402017122c0d9a69d5f0fe8a0d33b4278aef6c0869d5545581413acb405fd7db40cdfc21683f

  • SSDEEP

    12288:L3LWvY7t2ikRpkGjKm2hy8Vr4yGM1aUIQVo+H6PpH60iXCHX7i8HjffOXDxjr/o0:Ow7tsRpRjKmZUIko8bANHQxw

Malware Config

Extracted

Family

vipkeylogger

C2

https://api.telegram.org/bot8161253841:AAGRHYxgiSkOebv0FuCGL9evrRdWU0PY_rw/sendMessage?chat_id=6851554211

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
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Looks up external IP address via web service 3 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).

  • 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 7 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c7a9a258ebcce8d059be3d43911b8150cba636c9111224f29924460ffaf0bf33.exe
    "C:\Users\Admin\AppData\Local\Temp\c7a9a258ebcce8d059be3d43911b8150cba636c9111224f29924460ffaf0bf33.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:904
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\c7a9a258ebcce8d059be3d43911b8150cba636c9111224f29924460ffaf0bf33.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4888
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\YEjNzKzBGpIz.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4524
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YEjNzKzBGpIz" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFCEE.tmp"
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:1004
    • C:\Users\Admin\AppData\Local\Temp\c7a9a258ebcce8d059be3d43911b8150cba636c9111224f29924460ffaf0bf33.exe
      C:\Users\Admin\AppData\Local\Temp\c7a9a258ebcce8d059be3d43911b8150cba636c9111224f29924460ffaf0bf33.exe
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:4092

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    2KB

    MD5

    d85ba6ff808d9e5444a4b369f5bc2730

    SHA1

    31aa9d96590fff6981b315e0b391b575e4c0804a

    SHA256

    84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

    SHA512

    8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

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

    Filesize

    944B

    MD5

    6d3e9c29fe44e90aae6ed30ccf799ca8

    SHA1

    c7974ef72264bbdf13a2793ccf1aed11bc565dce

    SHA256

    2360634e63e8f0b5748e2c56ebb8f4aa78e71008ea7b5c9ca1c49be03b49557d

    SHA512

    60c38c4367352537545d859f64b9c5cbada94240478d1d039fd27b5ecba4dc1c90051557c16d802269703b873546ead416279c0a80c6fd5e49ad361cef22596a

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ynjzhwt0.ypw.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

    Filesize

    1KB

    MD5

    6006f3e86da3b1ce955e56757255857f

    SHA1

    dceaafc71f39f526ae9c35c1af9e4a333ba88ffb

    SHA256

    202dddead1002482da62282fabcffd3be9e3ccb06828205ff1ac7f3855cb6286

    SHA512

    5f56bdd848b3efe71146072b9273784a2d9f4d0ab12a59c006d2e2296e15a4b677196ce023af255a6e970c996386aa3e65998ec8dee2ac75986d884267e2eef6

  • memory/904-5-0x00007FFC50C40000-0x00007FFC51701000-memory.dmp

    Filesize

    10.8MB

  • memory/904-0-0x00007FFC50C43000-0x00007FFC50C45000-memory.dmp

    Filesize

    8KB

  • memory/904-6-0x0000000001970000-0x0000000001984000-memory.dmp

    Filesize

    80KB

  • memory/904-7-0x000000001DD60000-0x000000001DDEE000-memory.dmp

    Filesize

    568KB

  • memory/904-1-0x0000000000AA0000-0x0000000000B74000-memory.dmp

    Filesize

    848KB

  • memory/904-2-0x00007FFC50C40000-0x00007FFC51701000-memory.dmp

    Filesize

    10.8MB

  • memory/904-4-0x00007FFC50C43000-0x00007FFC50C45000-memory.dmp

    Filesize

    8KB

  • memory/904-3-0x000000001C7A0000-0x000000001C7C6000-memory.dmp

    Filesize

    152KB

  • memory/904-37-0x00007FFC50C40000-0x00007FFC51701000-memory.dmp

    Filesize

    10.8MB

  • memory/4092-34-0x0000000140000000-0x000000014004A000-memory.dmp

    Filesize

    296KB

  • memory/4092-44-0x000000001E590000-0x000000001E752000-memory.dmp

    Filesize

    1.8MB

  • memory/4092-45-0x0000000002D30000-0x0000000002D80000-memory.dmp

    Filesize

    320KB

  • memory/4092-46-0x000000001EC90000-0x000000001F1B8000-memory.dmp

    Filesize

    5.2MB

  • memory/4524-35-0x00007FFC50C40000-0x00007FFC51701000-memory.dmp

    Filesize

    10.8MB

  • memory/4524-33-0x00007FFC50C40000-0x00007FFC51701000-memory.dmp

    Filesize

    10.8MB

  • memory/4524-12-0x00007FFC50C40000-0x00007FFC51701000-memory.dmp

    Filesize

    10.8MB

  • memory/4524-43-0x00007FFC50C40000-0x00007FFC51701000-memory.dmp

    Filesize

    10.8MB

  • memory/4888-13-0x000001F47BF40000-0x000001F47BF62000-memory.dmp

    Filesize

    136KB