Analysis

  • max time kernel
    127s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/05/2024, 02:46

General

  • Target
    af7eec6d320279b921e6ddd499055d2418352c0a41367bca037c32dac81a3a31.exe
  • Size 145KB
  • Sample240509-c9b92aec9w
  • SHA256 af7eec6d320279b921e6ddd499055d2418352c0a41367bca037c32dac81a3a31
  • MD5 SHA1 SHA512 SSDEEP
Score
9/10

Malware Config

Signatures

  • Renames multiple (594) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • UPX dump on OEP (original entry point) 4 IoCs
  • UPX packed file 4 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Program Files directory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\af7eec6d320279b921e6ddd499055d2418352c0a41367bca037c32dac81a3a31.exe
    "C:\Users\Admin\AppData\Local\Temp\af7eec6d320279b921e6ddd499055d2418352c0a41367bca037c32dac81a3a31.exe"
    1⤵
    • Drops file in Program Files directory
    PID:2964
  • 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 --no-appcompat-clear --mojo-platform-channel-handle=1348 --field-trial-handle=2280,i,716736634476467098,11449718822158202904,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:2492

    Network

          MITRE ATT&CK Matrix

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          desktop.ini.tmp

          • Path C:\$Recycle.Bin\S-1-5-21-3808065738-1666277613-1125846146-1000\desktop.ini.tmp
          • Size 145KB
          • SHA256 74a798ac7e101d1efdee8449353d59329103032548fe6292dcdc2dc6f609fe4a
          • MD5 SHA1 SHA512 SSDEEP

          libsmartscreen.dll.tmp

          • Path C:\libsmartscreen.dll.tmp
          • Size 145KB
          • SHA256 4a39e9ebb62871bd59e42693ea26b4116bb8f75eae3257382686ec643ac8b146
          • MD5 SHA1 SHA512 SSDEEP

          memory/2964-0-0x0000000000400000-0x000000000040A000-memory.dmp

          memory/2964-216-0x0000000000400000-0x000000000040A000-memory.dmp