Analysis

  • max time kernel
    117s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20250207-en
  • resource tags

    arch:x64arch:x86image:win7-20250207-enlocale:en-usos:windows7-x64system
  • submitted
    28/03/2025, 13:20

General

  • Target

    bEXN0tpyU41jdD0.exe

  • Size

    864KB

  • MD5

    25b7cb7a62555ef3aaa7ecae00c8decd

  • SHA1

    a2421f5e2ae3aa20b8d11fc3076cea2400c68299

  • SHA256

    867af082ab5f5e7468aab5bca97063c60877f44c2d39c0ad02f1a1e721c92260

  • SHA512

    c7c7eeed71df83807cf9d584ee913e4661ccd7d921139a381ce4c17479420683f5ece7aa37b618d4162f39bde11c3bb2bf44fe906e9794f7d3ae0faa6c119f1b

  • SSDEEP

    24576:pg5n6cf13/iyC9LDY9uAKwOy39S741VxsUYI2f:pgB6KRCxDitSiYIU

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 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Uses the VBS compiler for execution 1 TTPs
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • 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).

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\bEXN0tpyU41jdD0.exe
    "C:\Users\Admin\AppData\Local\Temp\bEXN0tpyU41jdD0.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1852
    • 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\bEXN0tpyU41jdD0.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2440
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\TwTVLCxys.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2932
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TwTVLCxys" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3A9.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2828
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.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:1412

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp3A9.tmp

    Filesize

    1KB

    MD5

    a307ab3ce62b0d06fba0e932623b46f1

    SHA1

    3eea18fb200f47dd84a43c7949842dc698be9e0d

    SHA256

    703a65b55bb7eea2c1c56eaa8401b77ca3a55fd95f2ad4d2952ab39b5d601066

    SHA512

    d8f3f828c33cb300275c4bc3cb053af3e31827e6b9bff482443cf4cf919220d46e3fac3ea339591ec372e85a7b30bfc045da5fb5f9cb5acca14749231e942980

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

    Filesize

    7KB

    MD5

    b4c350531b7a3ead3df6bf13e3fbd58e

    SHA1

    b332898282e643f762cc96139cf95d91e40dee40

    SHA256

    65317c13e234d3bffd8c25d42c5902db5b9b08631983d54691a101983e762dcc

    SHA512

    94777dc6df885324d7d0f5b0fd739fcd62fef1e103a5de7d3b30465b5549431c076c3256c1fb5fe3e369984801dc6daf5b2a0dc7b54c8437e2ef2a46c193005b

  • memory/1412-30-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/1412-26-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/1412-24-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/1412-22-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/1412-28-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

    Filesize

    4KB

  • memory/1412-29-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/1412-31-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/1412-20-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/1852-0-0x0000000074A2E000-0x0000000074A2F000-memory.dmp

    Filesize

    4KB

  • memory/1852-2-0x0000000074A20000-0x000000007510E000-memory.dmp

    Filesize

    6.9MB

  • memory/1852-1-0x0000000000F30000-0x000000000100C000-memory.dmp

    Filesize

    880KB

  • memory/1852-7-0x0000000005860000-0x00000000058EE000-memory.dmp

    Filesize

    568KB

  • memory/1852-6-0x0000000074A20000-0x000000007510E000-memory.dmp

    Filesize

    6.9MB

  • memory/1852-3-0x0000000004CF0000-0x0000000004DAC000-memory.dmp

    Filesize

    752KB

  • memory/1852-5-0x0000000074A2E000-0x0000000074A2F000-memory.dmp

    Filesize

    4KB

  • memory/1852-4-0x00000000006D0000-0x00000000006E8000-memory.dmp

    Filesize

    96KB

  • memory/1852-32-0x0000000074A20000-0x000000007510E000-memory.dmp

    Filesize

    6.9MB