Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-06-2024 23:07

General

  • Target

    6ad1912cbc7b771b829dc433db04aa8934b3c8ab429fc8891b344338dd01479f.exe

  • Size

    239KB

  • MD5

    79f16bd2267886c88ca402c815ff44da

  • SHA1

    55a9a4f672f3514f3e5dada2bdd01381384b7f1a

  • SHA256

    6ad1912cbc7b771b829dc433db04aa8934b3c8ab429fc8891b344338dd01479f

  • SHA512

    bc9ee10a21b6e55eefacca0a8d5335c4369c93013fcebe27974bd71ddf341b21b26cbd8c36539483453efa9bf47be15fb268d384b380956aac70f5f8decf8938

  • SSDEEP

    3072:enaym3AIuZAIuyxJrQulAw9mHpKZNGCLOwstyhZFChcssc56FUrgxvbSD4UQrO2S:wHm3AIuZAIuyxJrZ9UpK7ShcHUaZk

Score
9/10

Malware Config

Signatures

  • Renames multiple (1627) 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
  • Executes dropped EXE 2 IoCs
  • UPX packed file 4 IoCs

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

  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6ad1912cbc7b771b829dc433db04aa8934b3c8ab429fc8891b344338dd01479f.exe
    "C:\Users\Admin\AppData\Local\Temp\6ad1912cbc7b771b829dc433db04aa8934b3c8ab429fc8891b344338dd01479f.exe"
    1⤵
    • Drops file in System32 directory
    • Suspicious use of WriteProcessMemory
    PID:3604
    • C:\Windows\SysWOW64\Zombie.exe
      "C:\Windows\system32\Zombie.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      PID:3100
    • C:\Users\Admin\AppData\Local\Temp\_cinst.exe
      "_cinst.exe"
      2⤵
      • Executes dropped EXE
      PID:4688
  • 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=3896 --field-trial-handle=2304,i,6987730730348465820,3913273227385401271,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:220

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      96KB

      MD5

      9a0a5eab387fec57180ddabf05f87f6a

      SHA1

      a854696db7647cc576c1323fa68f04c50339920a

      SHA256

      78cca3abe2a0fecedb24714b5b6f2507bd21f6a10670b74564284534c5c4d33d

      SHA512

      8a4a93b11ab931ce32868e14e40c05e48b6c4a74423fba4486e552bbb970b5adcb45d04bec8c342f8c4a82b4129a5fa448e20b62bd91e2a0f8f2c04aa56f86d7

    • C:\Users\Admin\AppData\Local\Temp\_cinst.exe

      Filesize

      143KB

      MD5

      2fdb371d45181dff59577110ba1064e2

      SHA1

      42a5833cb0ac90e38d734d1327bb3f7c7a6aa453

      SHA256

      80d7ec8ce3913d81ea5d4f304b8609e56f0e49778c52af9279e742ea54f4a155

      SHA512

      52982041ba9ca552b90b79b251501ec6c33c5251d09ca9969a1b179af2ec17aca6eb81db6e588e12751bcea04208e1da8d5a754a979dd98ceb3f50780aadea20

    • C:\Windows\SysWOW64\Zombie.exe

      Filesize

      96KB

      MD5

      5829fa8dc997f814aec5aab48c031cf2

      SHA1

      bfcb09138d6f55824c5ccb1f3c3efa7c4b0ec180

      SHA256

      7b61abab5027b6452db8e8405e64b902d9f83aa6f65854a7055f48daad8ef6b2

      SHA512

      c61def35c728dadfbbf097cc0c06aa4f5de1663ad17003b0339c6d0d591cb1ef3adcf6eb9cf7555e5de3e0c942e514e55139dc1dee68084b399e7fdc3a782774

    • memory/3604-0-0x0000000000400000-0x000000000040B000-memory.dmp

      Filesize

      44KB

    • memory/3604-23-0x0000000000400000-0x000000000040B000-memory.dmp

      Filesize

      44KB

    • memory/4688-20-0x00007FFC3DC93000-0x00007FFC3DC95000-memory.dmp

      Filesize

      8KB

    • memory/4688-21-0x0000000000710000-0x0000000000738000-memory.dmp

      Filesize

      160KB