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Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    20/03/2024, 00:51

General

  • Target

    2024-03-20_9ef2b49bd12b03e11502f0b26f8670b7_cryptolocker.exe

  • Size

    40KB

  • MD5

    9ef2b49bd12b03e11502f0b26f8670b7

  • SHA1

    1a0fd4025e141825bbaece106ca7dc99df540f52

  • SHA256

    291335d5f0d4837fff0393264559776f2fa05d2e4b4f7229f34b1c3788b19c01

  • SHA512

    d728511e48c607c24e68a542aa1f695f231b79ebe7d9826f7c9b539b2085cc8b6cfff722e18eec849d7b7c242d00f7e9f52bdf035dbb7a795230d03f71aa4e55

  • SSDEEP

    768:TS5nQJ24LR7tOOtEvwDpjGqPhqlcnvhx5/xFRpptB:m5nkFNMOtEvwDpjG8hhXzzB

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 6 IoCs
  • Detection of Cryptolocker Samples 4 IoCs
  • Detects executables built or packed with MPress PE compressor 6 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-03-20_9ef2b49bd12b03e11502f0b26f8670b7_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-03-20_9ef2b49bd12b03e11502f0b26f8670b7_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1364
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:2168

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\misid.exe

    Filesize

    40KB

    MD5

    f7cb8aa3470a447ce980acddaad8a22c

    SHA1

    5ebe437b655199f2dd15014f896252f9ea01e296

    SHA256

    f0e7e2dfa323e101e580db1960c06930d0e0d6ceda15ff7ae8bd3af8a73f2676

    SHA512

    161365c8a9c207e3e81a1e7245600001ac0e0b8d68b2aa952811ca24f360e35e2bed7baebba9799edb012ca59c89ff39ed3f3c6e7d6f1677cdb93100de1876a4

  • memory/1364-0-0x0000000000320000-0x0000000000326000-memory.dmp

    Filesize

    24KB

  • memory/1364-1-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/1364-2-0x0000000000460000-0x0000000000466000-memory.dmp

    Filesize

    24KB

  • memory/1364-9-0x0000000000320000-0x0000000000326000-memory.dmp

    Filesize

    24KB

  • memory/1364-13-0x0000000000680000-0x000000000068E000-memory.dmp

    Filesize

    56KB

  • memory/1364-16-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/2168-17-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/2168-19-0x0000000000280000-0x0000000000286000-memory.dmp

    Filesize

    24KB

  • memory/2168-26-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2168-27-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB