Analysis

  • max time kernel
    121s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    21/08/2024, 07:05

General

  • Target

    ioqjWeKazzLuiTHfd.rtf

  • Size

    636KB

  • MD5

    16ddde7b45c040f9fb63e73863134f5c

  • SHA1

    ca18b30011b59e341eae8006d05d543e7314ce0c

  • SHA256

    05ad66d563f492c9b527602ff6c7bd9b8fa0ed8f288d0481f51ebe6b71b05242

  • SHA512

    4b6dd4b9fc79ed9639f95eeff4756e3915591fca8265c70c361709f0aa46aec542143d1966cbf746bfc4eb8efd09ccebab9ff5290719025ade090fb8b8fd2c3b

  • SSDEEP

    6144:cwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAr:P6

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.

  • 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 1 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 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.

  • 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 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\ioqjWeKazzLuiTHfd.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:1976
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:2624
    • 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:584
      • C:\Users\Admin\AppData\Roaming\hgsnwealth82664.exe
        "C:\Users\Admin\AppData\Roaming\hgsnwealth82664.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2876
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\hgsnwealth82664.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:2168
        • C:\Users\Admin\AppData\Roaming\hgsnwealth82664.exe
          "C:\Users\Admin\AppData\Roaming\hgsnwealth82664.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:944

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Roaming\Microsoft\Templates\Normal.dotm

            Filesize

            19KB

            MD5

            3790713edce531d6d8f374f07159601f

            SHA1

            7e925c68c0fc273b8e1e03de281f9c438c822e51

            SHA256

            32cb6517f489f9184a5dba9ef49efeef6cd9a7b8b59b818550ebc65dc55165bd

            SHA512

            21a24fab7c610e7e172c3b0b850cd96377ed75d08d003151581ed10f0aad432e7376dff9bb47270ea903fbb47ce69818151f8e14149d13bc85b7965059b4b664

          • \Users\Admin\AppData\Roaming\hgsnwealth82664.exe

            Filesize

            714KB

            MD5

            06ef63fcb30cb75b38e13a0a12764097

            SHA1

            fbf8ee77153177587ef1e81e36cb4adad054d208

            SHA256

            23b9b4a46c15c5fa3b7445e8041852f3dc831547903250209ca738b1a17fb7c2

            SHA512

            833722edea13277437343fd24cdfdd2b99a5c8d909a68421ee65bb0e0bbefa41aef183340cce4991d55c21d505e6bfc7e6bb429ccbb10bcdf619669e800b42d2

          • memory/944-36-0x0000000000400000-0x0000000000448000-memory.dmp

            Filesize

            288KB

          • memory/944-23-0x0000000000400000-0x0000000000448000-memory.dmp

            Filesize

            288KB

          • memory/944-25-0x0000000000400000-0x0000000000448000-memory.dmp

            Filesize

            288KB

          • memory/944-34-0x0000000000400000-0x0000000000448000-memory.dmp

            Filesize

            288KB

          • memory/944-32-0x0000000000400000-0x0000000000448000-memory.dmp

            Filesize

            288KB

          • memory/944-31-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

            Filesize

            4KB

          • memory/944-29-0x0000000000400000-0x0000000000448000-memory.dmp

            Filesize

            288KB

          • memory/944-27-0x0000000000400000-0x0000000000448000-memory.dmp

            Filesize

            288KB

          • memory/1976-2-0x00000000716FD000-0x0000000071708000-memory.dmp

            Filesize

            44KB

          • memory/1976-0-0x000000002F591000-0x000000002F592000-memory.dmp

            Filesize

            4KB

          • memory/1976-59-0x000000005FFF0000-0x0000000060000000-memory.dmp

            Filesize

            64KB

          • memory/1976-20-0x00000000716FD000-0x0000000071708000-memory.dmp

            Filesize

            44KB

          • memory/1976-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

            Filesize

            64KB

          • memory/2876-14-0x0000000000830000-0x00000000008E6000-memory.dmp

            Filesize

            728KB

          • memory/2876-22-0x00000000048C0000-0x000000000494A000-memory.dmp

            Filesize

            552KB

          • memory/2876-21-0x0000000001D40000-0x0000000001D50000-memory.dmp

            Filesize

            64KB

          • memory/2876-15-0x0000000001D30000-0x0000000001D42000-memory.dmp

            Filesize

            72KB