Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    27/02/2025, 17:03

General

  • Target

    r3849023.exe

  • Size

    789KB

  • MD5

    3d6c55d8cf9c0229344c818ab9d6b49d

  • SHA1

    95b09d6ffebcac2642c11b50756637cc9c80d258

  • SHA256

    fbf0138afa653833d5a479a84738698e41d7c9565f368583e9a607867a94fad4

  • SHA512

    f7a014b4a939e5d16e74663648d9d4388ca8ae83013a5dabe993f8c0a268d8e23ca0d406ac98c78d93f0e5a13d71f2b8901d567c30860bc4d0279ea4ba09552d

  • SSDEEP

    24576:rf2qeCrhMS8iikUQ0Mt+x6khIhuDmbF0jMvode:rfhrUQCFK0SCMgI

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 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 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 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\r3849023.exe
    "C:\Users\Admin\AppData\Local\Temp\r3849023.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2512
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\VHTfwSDOqIgZQz.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2884
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VHTfwSDOqIgZQz" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF1BE.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:592
    • C:\Users\Admin\AppData\Local\Temp\r3849023.exe
      "C:\Users\Admin\AppData\Local\Temp\r3849023.exe"
      2⤵
        PID:2856
      • C:\Users\Admin\AppData\Local\Temp\r3849023.exe
        "C:\Users\Admin\AppData\Local\Temp\r3849023.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:2864

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmpF1BE.tmp

      Filesize

      1KB

      MD5

      43cded08df953b39fe9e41bedef0d17b

      SHA1

      2ba5213feb41f1c76464a4f9e7b6fe8bb766298f

      SHA256

      16a45e4f8269d07796dc9300e1656d9c4945cdc87bcb7e9f10691a07f6b35aa6

      SHA512

      09e94c4ec130a35911b78a2f24e39faf162b8c3031f8c661361195bc3f0e625dc583f1c17f49e908d38c1ccc004952d3a4a970d1e64c8713c864298512072be4

    • memory/2512-26-0x00000000745E0000-0x0000000074CCE000-memory.dmp

      Filesize

      6.9MB

    • memory/2512-1-0x00000000002E0000-0x00000000003AC000-memory.dmp

      Filesize

      816KB

    • memory/2512-2-0x00000000745E0000-0x0000000074CCE000-memory.dmp

      Filesize

      6.9MB

    • memory/2512-3-0x0000000001E40000-0x0000000001E58000-memory.dmp

      Filesize

      96KB

    • memory/2512-4-0x00000000745EE000-0x00000000745EF000-memory.dmp

      Filesize

      4KB

    • memory/2512-5-0x00000000745E0000-0x0000000074CCE000-memory.dmp

      Filesize

      6.9MB

    • memory/2512-6-0x0000000007DD0000-0x0000000007E5E000-memory.dmp

      Filesize

      568KB

    • memory/2512-0-0x00000000745EE000-0x00000000745EF000-memory.dmp

      Filesize

      4KB

    • memory/2864-17-0x0000000000400000-0x000000000044A000-memory.dmp

      Filesize

      296KB

    • memory/2864-24-0x0000000000400000-0x000000000044A000-memory.dmp

      Filesize

      296KB

    • memory/2864-23-0x0000000000400000-0x000000000044A000-memory.dmp

      Filesize

      296KB

    • memory/2864-22-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2864-20-0x0000000000400000-0x000000000044A000-memory.dmp

      Filesize

      296KB

    • memory/2864-18-0x0000000000400000-0x000000000044A000-memory.dmp

      Filesize

      296KB

    • memory/2864-14-0x0000000000400000-0x000000000044A000-memory.dmp

      Filesize

      296KB

    • memory/2864-25-0x0000000000400000-0x000000000044A000-memory.dmp

      Filesize

      296KB