Analysis

  • max time kernel
    120s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    30/08/2024, 19:13

General

  • Target

    Invoice-2238562.pdf.exe

  • Size

    697KB

  • MD5

    ffce60d577ed0b67ba4f4a590fa1aabc

  • SHA1

    b3ed06cb9856f457fd161efee573e3d9695cccb3

  • SHA256

    5827d53c05670c0d0f65d0ce989000b410cfbfb5a9831107d8dfbb13280501cb

  • SHA512

    cb5bd447f3c2d281ff93cb49c82f961e9a9edfa7efc1b6acb5bb6e9ac3fba7d20fe5ebb0b386c0b1582787d0aa40a370700b86629dcdb9638dcfe9e60e2fadb8

  • SSDEEP

    12288:3kVV5pxDntgsVsuhtng2RcAxzCUZk/25J/l4FZGb4jmoMA+d7CvWZMWMPagvk:325rp/zRcKPZk/O/lsZGHoMA6eoMzpvk

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.

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • 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.

  • 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 2 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Invoice-2238562.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Invoice-2238562.pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2120
    • 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\Invoice-2238562.pdf.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2996
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\QyszliywyYQPNQ.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2364
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QyszliywyYQPNQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCE37.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2764
    • C:\Users\Admin\AppData\Local\Temp\Invoice-2238562.pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\Invoice-2238562.pdf.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:2780

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpCE37.tmp

    Filesize

    1KB

    MD5

    1f239a175a76edd493a62e9c1f816761

    SHA1

    dad33e377ec3e4a739acd08980ea7232af989191

    SHA256

    f3b07b6a05c4c7a1bf48dd3396b59564cf45b147c87aed56481199bbc82b443c

    SHA512

    52ba203f38d46964ce67e7b4bf38c963a20168bacce18e464f6d05c0d06f3d44285f5267f0461fc092a26f792606809c50344f9b578aed85b2b9993f073f626a

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

    Filesize

    7KB

    MD5

    24d96762694cbb577d5b8bfe6dce4187

    SHA1

    fa3ae7a201bf0a1b1fd7cf296668c266d712a90a

    SHA256

    c55f41aceb4391b50a2b1a7b37baf3335f246a37d9c9e2ab6cf4269b1eaa1815

    SHA512

    50eec32905f808786515a35d9e6173d0ca7d2f92d00a4680d5437864ae66794a196ed95036e573306eefe8d62d7ddfa62e56e5ea3cf84306d3a1e7f6f09172ab

  • memory/2120-4-0x000000007402E000-0x000000007402F000-memory.dmp

    Filesize

    4KB

  • memory/2120-31-0x0000000074020000-0x000000007470E000-memory.dmp

    Filesize

    6.9MB

  • memory/2120-0-0x000000007402E000-0x000000007402F000-memory.dmp

    Filesize

    4KB

  • memory/2120-5-0x0000000074020000-0x000000007470E000-memory.dmp

    Filesize

    6.9MB

  • memory/2120-6-0x0000000005B30000-0x0000000005BBC000-memory.dmp

    Filesize

    560KB

  • memory/2120-2-0x0000000074020000-0x000000007470E000-memory.dmp

    Filesize

    6.9MB

  • memory/2120-1-0x0000000000FE0000-0x0000000001094000-memory.dmp

    Filesize

    720KB

  • memory/2120-3-0x0000000000560000-0x0000000000578000-memory.dmp

    Filesize

    96KB

  • memory/2780-19-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2780-30-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2780-29-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2780-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2780-25-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2780-23-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2780-21-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2780-28-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB