Analysis

  • max time kernel
    61s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    23-10-2024 10:04

General

  • Target

    RFQ PO 2.rtf

  • Size

    740KB

  • MD5

    f26bb424ef01ec203239aa3a6856faca

  • SHA1

    43368a01d4d0842df97c91a2aa09975f0f90a3e9

  • SHA256

    f40201743250cd62b21ea6a53c9b5cac0cbe8e7eb36b4b899321a63e5ab589ac

  • SHA512

    fba9c8b8003e92a4d4c620f8d636bb11c47e55b5277d6fd796687b4e5aeaf761156c7e65024868399213c65bd2a5e8db5836716b58a6c8a05f6516f3f26262f4

  • SSDEEP

    6144:DwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwA3wyM+3v2jBQK50iMKt6:p

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.

  • Blocklisted process makes network request 1 IoCs
  • 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.

  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • 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.

  • Drops file in System32 directory 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 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.

  • Office loads VBA resources, possible macro or embedded object present
  • Launches Equation Editor 1 TTPs 1 IoCs

    Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\RFQ PO 2.rtf"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2904
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:2756
    • C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
      "C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
      1⤵
      • Blocklisted process makes network request
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Launches Equation Editor
      • Suspicious use of WriteProcessMemory
      PID:2340
      • C:\Users\Admin\AppData\Roaming\obiddjtr.exe
        "C:\Users\Admin\AppData\Roaming\obiddjtr.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2392
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\obiddjtr.exe"
          3⤵
          • Command and Scripting Interpreter: PowerShell
          • Drops file in System32 directory
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2656
        • C:\Users\Admin\AppData\Roaming\obiddjtr.exe
          "C:\Users\Admin\AppData\Roaming\obiddjtr.exe"
          3⤵
          • Executes dropped EXE
          • Accesses Microsoft Outlook profiles
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • outlook_office_path
          • outlook_win_path
          PID:2712

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • \Users\Admin\AppData\Roaming\obiddjtr.exe

      Filesize

      759KB

      MD5

      7578316e563e8a4a2983ae041a5fff39

      SHA1

      fa5a6777784f272b191803d03a49dfe40354bcf2

      SHA256

      2b845ff4c5ee973861ccb905e73fed0bbd46ce5e311fc8910d188ec839226f58

      SHA512

      225fa056dff9c59915fbfe593d3d336c133eeab6be80f48de976f8d14cd773bde21716f489b45c007310da6eb61c9bd6681a7ec0a80559b246af07a1346dc9ba

    • memory/2392-17-0x00000000002F0000-0x00000000003B2000-memory.dmp

      Filesize

      776KB

    • memory/2392-20-0x00000000005D0000-0x000000000065C000-memory.dmp

      Filesize

      560KB

    • memory/2392-18-0x00000000003C0000-0x00000000003DE000-memory.dmp

      Filesize

      120KB

    • memory/2712-21-0x0000000000400000-0x0000000000448000-memory.dmp

      Filesize

      288KB

    • memory/2712-23-0x0000000000400000-0x0000000000448000-memory.dmp

      Filesize

      288KB

    • memory/2712-34-0x0000000000400000-0x0000000000448000-memory.dmp

      Filesize

      288KB

    • memory/2712-32-0x0000000000400000-0x0000000000448000-memory.dmp

      Filesize

      288KB

    • memory/2712-30-0x0000000000400000-0x0000000000448000-memory.dmp

      Filesize

      288KB

    • memory/2712-29-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2712-27-0x0000000000400000-0x0000000000448000-memory.dmp

      Filesize

      288KB

    • memory/2712-25-0x0000000000400000-0x0000000000448000-memory.dmp

      Filesize

      288KB

    • memory/2904-2-0x00000000716ED000-0x00000000716F8000-memory.dmp

      Filesize

      44KB

    • memory/2904-19-0x00000000716ED000-0x00000000716F8000-memory.dmp

      Filesize

      44KB

    • memory/2904-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/2904-0-0x000000002F881000-0x000000002F882000-memory.dmp

      Filesize

      4KB