Analysis

  • max time kernel
    122s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    21/08/2024, 12:01

General

  • Target

    SecuriteInfo.com.Exploit.CVE20180798.4.23716.11677.rtf

  • Size

    820KB

  • MD5

    77d04e68c46c843c399d83b858b9b46a

  • SHA1

    8f4f41f26cd7bd6b60045cc878c83d132f79193a

  • SHA256

    d718eb322dc9348cb1813a920ca739a5c4bd6b44ac32c0c085bd92148bf94161

  • SHA512

    22986daa2bd352305885276d9c000caf89c171a6187caadb1d29bbbf1e89916e4a6a199aa6500890befaa9dfc92a14d87976b470b41ec49f5f050b40f9b8b81d

  • SSDEEP

    6144:3wAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAN:uE

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\SecuriteInfo.com.Exploit.CVE20180798.4.23716.11677.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:2328
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:2292
    • 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:2312
      • C:\Users\Admin\AppData\Roaming\erdalpha03977.exe
        "C:\Users\Admin\AppData\Roaming\erdalpha03977.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2904
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\erdalpha03977.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:2712
        • C:\Users\Admin\AppData\Roaming\erdalpha03977.exe
          "C:\Users\Admin\AppData\Roaming\erdalpha03977.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:2928

    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

            659e9058c06c4be3a3125890527cb3f5

            SHA1

            65b90e1fd365334fae1db90263a2adb7fa64b6a7

            SHA256

            aff0f8aec979eb295566196e0cbc3741023f4d5e3a896393682266319c6a49b0

            SHA512

            9f244189b18b1abf34814269c03c38042d0ffe9642aafed993d3630ce3c530a126df2fef5a1f7af864aae83f2b2f862d82c78fe28bf5f3f86b62d65444b09094

          • C:\Users\Admin\AppData\Roaming\erdalpha03977.exe

            Filesize

            720KB

            MD5

            8457be7f4b6910dc68805dacb8009200

            SHA1

            a25c63862fe75623c6e69659ee7ae803ec8659b9

            SHA256

            496ba3f23ddaf5c1514228f1ca90b1de4392a159eaac3ecbd5fbe3fbb28f819f

            SHA512

            6ec632c69a19e1d36371aff5664f3c7c266bfab2fa2b321c3db2bb2e47c42fc9f0c60ebb71b7d3087d54b270368efee0a869888a325aa3d3c8af482f16b482b0

          • memory/2328-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

            Filesize

            64KB

          • memory/2328-2-0x000000007151D000-0x0000000071528000-memory.dmp

            Filesize

            44KB

          • memory/2328-4-0x000000007151D000-0x0000000071528000-memory.dmp

            Filesize

            44KB

          • memory/2328-55-0x000000007151D000-0x0000000071528000-memory.dmp

            Filesize

            44KB

          • memory/2328-0-0x000000002FCA1000-0x000000002FCA2000-memory.dmp

            Filesize

            4KB

          • memory/2328-54-0x000000005FFF0000-0x0000000060000000-memory.dmp

            Filesize

            64KB

          • memory/2904-15-0x00000000000C0000-0x0000000000176000-memory.dmp

            Filesize

            728KB

          • memory/2904-16-0x0000000000480000-0x0000000000492000-memory.dmp

            Filesize

            72KB

          • memory/2904-17-0x0000000000490000-0x00000000004A0000-memory.dmp

            Filesize

            64KB

          • memory/2904-18-0x00000000021D0000-0x000000000225C000-memory.dmp

            Filesize

            560KB

          • memory/2928-21-0x0000000000400000-0x000000000044A000-memory.dmp

            Filesize

            296KB

          • memory/2928-28-0x0000000000400000-0x000000000044A000-memory.dmp

            Filesize

            296KB

          • memory/2928-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

            Filesize

            4KB

          • memory/2928-25-0x0000000000400000-0x000000000044A000-memory.dmp

            Filesize

            296KB

          • memory/2928-23-0x0000000000400000-0x000000000044A000-memory.dmp

            Filesize

            296KB

          • memory/2928-30-0x0000000000400000-0x000000000044A000-memory.dmp

            Filesize

            296KB

          • memory/2928-31-0x0000000000400000-0x000000000044A000-memory.dmp

            Filesize

            296KB

          • memory/2928-19-0x0000000000400000-0x000000000044A000-memory.dmp

            Filesize

            296KB