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Analysis

  • max time kernel
    150s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/05/2024, 02:59

General

  • Target

    55e47629a6d2667bc3be22c2d4384480_NEAS.exe

  • Size

    146KB

  • MD5

    55e47629a6d2667bc3be22c2d4384480

  • SHA1

    b0f0c50cc39cf681c5edcf8072109d73fcc4211b

  • SHA256

    63d2589a6f40b01c512b72da1348ccb501740a27a8ec3be4edef6765db8bb679

  • SHA512

    387087a8a088c8754916621d48f03203c75d88b3e5ddfcaf846740d2bd8c85bb3215110370d6bc7c0f70167c3f0d12d1a3b329c613406b107168b1766fd13deb

  • SSDEEP

    3072:+nymCAIuZAIuYSMjoqtMHfhflixisXxXk:JmCAIuZAIuDMVtM/ih0

Score
9/10

Malware Config

Signatures

  • Renames multiple (4844) files with added filename extension

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

  • 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\55e47629a6d2667bc3be22c2d4384480_NEAS.exe
    "C:\Users\Admin\AppData\Local\Temp\55e47629a6d2667bc3be22c2d4384480_NEAS.exe"
    1⤵
    • Drops file in Program Files directory
    PID:1696

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • C:\$Recycle.Bin\S-1-5-21-877519540-908060166-1852957295-1000\desktop.ini.tmp

    Filesize

    147KB

    MD5

    9d790104e69f8d16e022f3c348859477

    SHA1

    279eb32368a65cd645fcc60762f834c528c20cb6

    SHA256

    f9c1bf01c1f66c1e3a3b8783aad5dd7bbf6f9950b392dc3d29bd3b62a63ffc4d

    SHA512

    22b33be56d3ab584dad5f01a1215dfc44ce8e59fff83f619010ca51bf2f5d6460351f53d52c5461888e8eac707103fd8bb645b5bb882c927aa5dbd99225295af

  • C:\Program Files\7-Zip\7-zip.dll.tmp

    Filesize

    245KB

    MD5

    7ebb20aa685e8816c538bc3d8956d63e

    SHA1

    dfea5df51677f5926cf2da02ef49d7e81dcd6b21

    SHA256

    059294bcfadeeafc49f4baca3242f1ccc847e08d0a6e70622d3e6a5d11cf3b87

    SHA512

    1b8a99db4758f6b96d630dd1c2f21b5b4fae146fa4f37695fd799696e2fb55b2265d7fd2cf59d27aeb5f112fb50716eae6185cf09f1752ebb78e967c594c2e45

  • memory/1696-0-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1696-1632-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB