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Analysis

  • max time kernel
    119s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    29/08/2024, 05:17

General

  • Target

    SMT-SMTLEE.exe

  • Size

    695KB

  • MD5

    d86d32a91cd4fbf6b7ef7ee1593333d5

  • SHA1

    de006ba907db6b0cdc0b1ffd5ce0dc34575da3f5

  • SHA256

    04b2fa83d9f55ff2b689a6f8541cd7529c7c1166bda9be8cc46d5014f41fa1e1

  • SHA512

    70d0e8dcebbf6e77280c7b1ccd060386f0e25ec6da58044c32c0d5e9d8ce741bcf7a5bf64cd6af4da2a4498c7a5b88f515f0e90551276eedccb206be76481ded

  • SSDEEP

    12288:iVVGEHMe5DzoyMhBf8O/rDtTvLrBVJLvFs0YVQQyoGeKc5g/:0GLe5D6PVdBxsRxyorKcq

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 WriteProcessMemory 21 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SMT-SMTLEE.exe
    "C:\Users\Admin\AppData\Local\Temp\SMT-SMTLEE.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1476
    • 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\SMT-SMTLEE.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2716
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\vXJvDpCf.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2676
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vXJvDpCf" /XML "C:\Users\Admin\AppData\Local\Temp\tmp38CC.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2808
    • C:\Users\Admin\AppData\Local\Temp\SMT-SMTLEE.exe
      "C:\Users\Admin\AppData\Local\Temp\SMT-SMTLEE.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:2632

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp38CC.tmp

    Filesize

    1KB

    MD5

    d90dadb8489f21dc07963a350d7e28fd

    SHA1

    edd6f0716a5cdd9aa73393cbea7deb01c6baf10c

    SHA256

    b43bf5fdb95a3fc71b3f2ad060c21d3ea762640b9588d5cb5ddae43a3ced1710

    SHA512

    07213fb76f7fc251be054d98ed3b915b48370f06496e1e61d7a1979036153002c9fef6eebac2b37ccb8ec340cba3490b90899b01ef88f3240245e6da7603eced

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

    Filesize

    7KB

    MD5

    7cb0b057734c5f08fa122faaa09d7f7d

    SHA1

    097e8f0e59f8e73470b4123d49d3cb4da02a070c

    SHA256

    d9883afcda907b28aaad937c9c6910e4540728a3b6c2342f6bd2ace54e8d4100

    SHA512

    1c0dc87f430a499a5ecf232bc26cfe69a59afaddbff916f1cfb75b1c76521da03966033549684cf18223c8366351e9e4fe924e81f600891fd986b2fd9b26e5cd

  • memory/1476-4-0x000000007494E000-0x000000007494F000-memory.dmp

    Filesize

    4KB

  • memory/1476-32-0x0000000074940000-0x000000007502E000-memory.dmp

    Filesize

    6.9MB

  • memory/1476-0-0x000000007494E000-0x000000007494F000-memory.dmp

    Filesize

    4KB

  • memory/1476-5-0x0000000074940000-0x000000007502E000-memory.dmp

    Filesize

    6.9MB

  • memory/1476-6-0x0000000004EE0000-0x0000000004F6C000-memory.dmp

    Filesize

    560KB

  • memory/1476-2-0x0000000074940000-0x000000007502E000-memory.dmp

    Filesize

    6.9MB

  • memory/1476-1-0x0000000000900000-0x00000000009B2000-memory.dmp

    Filesize

    712KB

  • memory/1476-3-0x0000000001E60000-0x0000000001E78000-memory.dmp

    Filesize

    96KB

  • memory/2632-23-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2632-31-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2632-29-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2632-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2632-25-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2632-21-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2632-19-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2632-28-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB