Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    29/08/2024, 14:55

General

  • Target

    GCBrnEGE22coKRz.exe

  • Size

    822KB

  • MD5

    5783a1fa182d62eb3838a2e3954a1f36

  • SHA1

    eec476fcc102b50390cf983725dbffaee693200e

  • SHA256

    a708a6cd710ba79a3dee7a91db6fedf3b3f6da1ab10d6391cc98962ee0904fd1

  • SHA512

    31d8cd0fa9f08b7ada602fdd4877c246e892f1d18fdee0cc3e49ac7f293d3b41857009c3a3b97fa14737bdcfa786ed2cdb88b4d5e6383d5f83eda69e5bd4f7d8

  • SSDEEP

    12288:XMf55k2851eTl3GpqJTWwK6WP/FlTW/Md3SlpAVF/8CxeYm8ba/DONRoT9H:Xy5xR5VKBXvTUOlNm8bkDD

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).

  • 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 19 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\GCBrnEGE22coKRz.exe
    "C:\Users\Admin\AppData\Local\Temp\GCBrnEGE22coKRz.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2772
    • 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\GCBrnEGE22coKRz.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2704
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\xdOaJTzpabdo.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2824
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xdOaJTzpabdo" /XML "C:\Users\Admin\AppData\Local\Temp\tmp845C.tmp"
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:2636
    • C:\Users\Admin\AppData\Local\Temp\GCBrnEGE22coKRz.exe
      C:\Users\Admin\AppData\Local\Temp\GCBrnEGE22coKRz.exe
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:264
      • C:\Windows\system32\WerFault.exe
        C:\Windows\system32\WerFault.exe -u -p 264 -s 1052
        3⤵
          PID:2896

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp845C.tmp

      Filesize

      1KB

      MD5

      c78839c3ed540e1eaca717dfd9c367b1

      SHA1

      1692197a9893d6d076336547b5d8ef843a59deee

      SHA256

      57fda9cfc03bfc276e7d08da01d4a4a67a1d2faf1e32be73a3499acb102e439b

      SHA512

      4499dfa6d71452db02c12cc46f1fa91c5f2a4c076bff9a44b559163a77617d5843eeadafff52961318f1928dad0d332f0ae3d2c99dc0932b73b4fff957c8e083

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\A99JPS0WH8TPD6W9PJHV.temp

      Filesize

      7KB

      MD5

      38d443d18ab948145907c60d94027feb

      SHA1

      aa2818cda85da462c7ae3b03e1d60f371c26a150

      SHA256

      704f0ed9865d5137a398708d1e052bf67736b7449636a1766579bea69f0cf3c0

      SHA512

      4a51ac42cd2dd71f897590b46dbb030d85a6fc7f782cf42f5c5754fc3913acbe963256597a42451cefad539df37f67f0eb0e9490d3d7243590da45e39f29108b

    • memory/264-28-0x0000000140000000-0x0000000140048000-memory.dmp

      Filesize

      288KB

    • memory/264-26-0x0000000140000000-0x0000000140048000-memory.dmp

      Filesize

      288KB

    • memory/264-32-0x000007FFFFFD5000-0x000007FFFFFD6000-memory.dmp

      Filesize

      4KB

    • memory/264-35-0x0000000140000000-0x0000000140048000-memory.dmp

      Filesize

      288KB

    • memory/264-30-0x0000000140000000-0x0000000140048000-memory.dmp

      Filesize

      288KB

    • memory/2704-25-0x0000000002970000-0x0000000002978000-memory.dmp

      Filesize

      32KB

    • memory/2772-1-0x000000013FED0000-0x000000013FFA0000-memory.dmp

      Filesize

      832KB

    • memory/2772-9-0x000000001BE60000-0x000000001BEEA000-memory.dmp

      Filesize

      552KB

    • memory/2772-2-0x000007FEF52B0000-0x000007FEF5C9C000-memory.dmp

      Filesize

      9.9MB

    • memory/2772-3-0x00000000007F0000-0x0000000000814000-memory.dmp

      Filesize

      144KB

    • memory/2772-8-0x000007FEF52B0000-0x000007FEF5C9C000-memory.dmp

      Filesize

      9.9MB

    • memory/2772-7-0x0000000000830000-0x0000000000844000-memory.dmp

      Filesize

      80KB

    • memory/2772-0-0x000007FEF52B3000-0x000007FEF52B4000-memory.dmp

      Filesize

      4KB

    • memory/2772-6-0x0000000000810000-0x0000000000826000-memory.dmp

      Filesize

      88KB

    • memory/2772-5-0x000007FEF52B0000-0x000007FEF5C9C000-memory.dmp

      Filesize

      9.9MB

    • memory/2772-4-0x000007FEF52B3000-0x000007FEF52B4000-memory.dmp

      Filesize

      4KB

    • memory/2772-36-0x000007FEF52B0000-0x000007FEF5C9C000-memory.dmp

      Filesize

      9.9MB

    • memory/2824-24-0x000000001B6C0000-0x000000001B9A2000-memory.dmp

      Filesize

      2.9MB