Analysis

  • max time kernel
    140s
  • max time network
    129s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/09/2024, 01:14

General

  • Target
    af94d879e66657616e0f863c29a0e46392a73d68ffdd8ec5104961b98f44baa3.exe
  • Size 824KB
  • Sample240910-blppsa1fqd
  • SHA256 af94d879e66657616e0f863c29a0e46392a73d68ffdd8ec5104961b98f44baa3
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Signatures

  • Detects Renamer worm. 2 IoCs

    Renamer aka Grename is worm written in Delphi.

  • Renamer, Grenam

    Renamer aka Grenam is a worm written in Delphi.

  • Drops startup file 1 IoCs
  • Drops autorun.inf file 1 TTPs 2 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

Processes

  • C:\Users\Admin\AppData\Local\Temp\af94d879e66657616e0f863c29a0e46392a73d68ffdd8ec5104961b98f44baa3.exe
    "C:\Users\Admin\AppData\Local\Temp\af94d879e66657616e0f863c29a0e46392a73d68ffdd8ec5104961b98f44baa3.exe"
    1⤵
    • Drops startup file
    • Drops autorun.inf file
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    PID:4460
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=3852,i,15436195446242760253,4000484513008731869,262144 --variations-seed-version --mojo-platform-channel-handle=3960 /prefetch:8
    1⤵
      PID:4812

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          7z.exe

          • Path C:\Program Files\7-Zip\7z.exe
          • Size 824KB
          • SHA256 af94d879e66657616e0f863c29a0e46392a73d68ffdd8ec5104961b98f44baa3
          • MD5 SHA1 SHA512 SSDEEP

          vjavaws.ico

          • Path C:\Program Files\Java\jdk-1.8\bin\vjavaws.ico
          • Size 4KB
          • SHA256 611f2cb2e03bd8dbcb584cd0a1c48accfba072dd3fc4e6d3144e2062553637f5
          • MD5 SHA1 SHA512 SSDEEP

          vIntegratedOffice.ico

          • Path C:\Program Files\Microsoft Office 15\ClientX64\vIntegratedOffice.ico
          • Size 4KB
          • SHA256 a058bfd185fe714927e15642004866449bce425d34292a08af56d66cf03ebe6c
          • MD5 SHA1 SHA512 SSDEEP

          vmisc.ico

          • Path C:\Program Files\Microsoft Office\root\vfs\Windows\Installer\{90160000-001F-0C0A-1000-0000000FF1CE}\vmisc.ico
          • Size 4KB
          • SHA256 3cc5043caa157e5f9b1870527b8c323850bdae1e58d6760e4e895d2ab8a35a05
          • MD5 SHA1 SHA512 SSDEEP

          autorun.inf

          • Path F:\autorun.inf
          • Size 102B
          • SHA256 94e323bd9071db7369ade16f45454e7a0dbfb6a39efddc1234c4719d1f7ee4c2
          • MD5 SHA1 SHA512

          memory/4460-0-0x0000000002290000-0x0000000002291000-memory.dmp

          memory/4460-268-0x0000000000400000-0x00000000004DB000-memory.dmp

          memory/4460-269-0x0000000002290000-0x0000000002291000-memory.dmp