Analysis

  • max time kernel
    151s
  • 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
    26-05-2024 02:48

General

  • Target

    c633bcc73e050283da7455256090729a754c59fa7635211caf38764ea4514935.exe

  • Size

    111KB

  • MD5

    249f717a57ab49043a653346999e379e

  • SHA1

    38be4ed07e8bcfd81d8114ead5babde30bccdbb2

  • SHA256

    c633bcc73e050283da7455256090729a754c59fa7635211caf38764ea4514935

  • SHA512

    bd8d30e0fef51f84704f38cc30875e50f2f3038691059f7215611d38bc90e71233d03c32ef5cc8b92df90a847c7d6ac8e154fada5637227603415ea578ea523a

  • SSDEEP

    1536:Isz1++PJHJXFAIuZAIuekc9zBfA1OjBWgOI3uicwa+shcBEN2iqxtdSCow8hf0xx:hfAIuZAIuYSMjoqtMHfhf8

Score
9/10

Malware Config

Signatures

  • Renames multiple (1339) 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\c633bcc73e050283da7455256090729a754c59fa7635211caf38764ea4514935.exe
    "C:\Users\Admin\AppData\Local\Temp\c633bcc73e050283da7455256090729a754c59fa7635211caf38764ea4514935.exe"
    1⤵
    • Drops file in Program Files directory
    PID:3176
  • 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=3692 --field-trial-handle=3192,i,2785050981002401924,4037047756083432660,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:2996

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\$Recycle.Bin\S-1-5-21-3808065738-1666277613-1125846146-1000\desktop.ini.tmp

      Filesize

      112KB

      MD5

      5d94627e049bd46fc0ab4005896d7cc0

      SHA1

      d0c56351efc2dcb699fb49fd6acb3ca170d59a2a

      SHA256

      5025e7b83584fc6246a3e614ba94864660cbf43176f68f1d37fc93be4899a45b

      SHA512

      2b3f57949a7de2cc7097b8d915ac3e5d026080a6ced41e1bed744de88b006cd99dd925e9d1636b3f59a783565de6e2e6003ba50562f8cebf85e3c4c2d0587c3a

    • C:\libsmartscreen.dll.tmp

      Filesize

      111KB

      MD5

      31fbd185ac52ea0b221353bc3fccdb80

      SHA1

      fdf755ce8818c4b564ff92e1dd19dd4351af138c

      SHA256

      03df1262c86a02be79a5780fa6c98815e975d770c63fc7d04bbe29ad4fef0211

      SHA512

      001f6ed35d9c3c35ef4847171a99068527f1e11e3ec313a8ad4600bc45bc3291307142036c11ef507f52c124c2d9c9833e44bc6a545188308fd0d3bd4eb46c89

    • memory/3176-0-0x0000000000400000-0x000000000040A000-memory.dmp

      Filesize

      40KB

    • memory/3176-157-0x0000000000400000-0x000000000040A000-memory.dmp

      Filesize

      40KB