Analysis

  • max time kernel
    121s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    01-10-2024 11:25

General

  • Target

    invoices.exe

  • Size

    757KB

  • MD5

    fbe6bc03a03310d3cb73b56f26c450c4

  • SHA1

    daef2bf82d629458f58ef53c2faf93970c27644e

  • SHA256

    1ffdb5b3f3b764b20dfc66d3c70d80d25a75b3707f42cce07b032398bce7b195

  • SHA512

    55972ac403bb20d4ff8f4da07c62c0172260f3e73889b4e5069ad999920409f30c7cbca95bb953ed0d10fe0af38555b816322bcfcea79fc75ea123b0471e5ad1

  • SSDEEP

    12288:HNit1Ay2Lr/xR65Qxh1D5N1IyXHu1/NeKtmtpqgqc5kp2PLitx+xRkR:At1yQUJW2OPbnlYLQx+xM

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.

  • 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.

  • 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 4 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 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\invoices.exe
    "C:\Users\Admin\AppData\Local\Temp\invoices.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2620
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\nyQmHXV.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2956
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\nyQmHXV" /XML "C:\Users\Admin\AppData\Local\Temp\tmp80E3.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2688
    • C:\Users\Admin\AppData\Local\Temp\invoices.exe
      "C:\Users\Admin\AppData\Local\Temp\invoices.exe"
      2⤵
        PID:2568
      • C:\Users\Admin\AppData\Local\Temp\invoices.exe
        "C:\Users\Admin\AppData\Local\Temp\invoices.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:2692

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp80E3.tmp

      Filesize

      1KB

      MD5

      6ee3573030012184c376b2f5f592a0ab

      SHA1

      a17cdab7d75a2a95d324fd1073c397bd4fb3d541

      SHA256

      430e63f6964803645293550367570dce5ef9354b0301c241dc4dbad4877b69c9

      SHA512

      a84fac94f3a3f11423b41c42e30ad77adc33a1483f8764d46ffc41a9c466bb0ad48d40d75a5af1d81d6e053e99aa8b041bf72875bb69ee4c58c450b098edaadf

    • memory/2620-27-0x00000000746A0000-0x0000000074D8E000-memory.dmp

      Filesize

      6.9MB

    • memory/2620-1-0x0000000000910000-0x00000000009D0000-memory.dmp

      Filesize

      768KB

    • memory/2620-2-0x00000000746A0000-0x0000000074D8E000-memory.dmp

      Filesize

      6.9MB

    • memory/2620-3-0x00000000003B0000-0x00000000003CE000-memory.dmp

      Filesize

      120KB

    • memory/2620-4-0x00000000746AE000-0x00000000746AF000-memory.dmp

      Filesize

      4KB

    • memory/2620-5-0x00000000746A0000-0x0000000074D8E000-memory.dmp

      Filesize

      6.9MB

    • memory/2620-6-0x0000000000460000-0x00000000004EC000-memory.dmp

      Filesize

      560KB

    • memory/2620-0-0x00000000746AE000-0x00000000746AF000-memory.dmp

      Filesize

      4KB

    • memory/2692-24-0x0000000000400000-0x000000000044A000-memory.dmp

      Filesize

      296KB

    • memory/2692-21-0x0000000000400000-0x000000000044A000-memory.dmp

      Filesize

      296KB

    • memory/2692-20-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2692-18-0x0000000000400000-0x000000000044A000-memory.dmp

      Filesize

      296KB

    • memory/2692-16-0x0000000000400000-0x000000000044A000-memory.dmp

      Filesize

      296KB

    • memory/2692-14-0x0000000000400000-0x000000000044A000-memory.dmp

      Filesize

      296KB

    • memory/2692-13-0x0000000000400000-0x000000000044A000-memory.dmp

      Filesize

      296KB

    • memory/2692-22-0x0000000000400000-0x000000000044A000-memory.dmp

      Filesize

      296KB