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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
    04/02/2024, 03:48

General

  • Target

    2024-02-04_9cc7f22455fcdb1070ad962f2d69485b_cryptolocker.exe

  • Size

    43KB

  • MD5

    9cc7f22455fcdb1070ad962f2d69485b

  • SHA1

    11a3d92d05778a300fb58b9c52be5025c4695f18

  • SHA256

    095ba3b10026f1089dd2af3002187c5c2c021011c7e305bdb75e80a52c19dad0

  • SHA512

    9661620a5d7d8d6a012752948b7015183896c10bd565501678361418f501a2a9c90b6e4e58fb49c8a8a369639708d725d8c082b50efbba8fcbde99d3059bfbde

  • SSDEEP

    768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6j4AYsqSh+DETkedm+YUS5p:YGzl5wjRQBBOsP1QMOtEvwDpjl39+D+c

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 IoCs
  • Detection of Cryptolocker Samples 4 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\2024-02-04_9cc7f22455fcdb1070ad962f2d69485b_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-04_9cc7f22455fcdb1070ad962f2d69485b_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:3028
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2316

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    44KB

    MD5

    9b9fac3a25c5455a59d642d6930056b3

    SHA1

    55d722380a87c9a256ca2f8617e03be8fbaf6b94

    SHA256

    36da78d81bccc6ba25123f4c0e9dad8bfddd574ae55c17c44293561199c5e3bb

    SHA512

    0277d1e0415cc40c04559c7751d775542bf16944cfb0916596a55bd3c3817d66eaa98b79d0709cc8a839a05c562200aa83608c765e19869948f1a51c7b14bbd6

  • memory/2316-17-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB

  • memory/2316-19-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/2316-26-0x00000000004B0000-0x00000000004B6000-memory.dmp

    Filesize

    24KB

  • memory/3028-0-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB

  • memory/3028-1-0x00000000001C0000-0x00000000001C6000-memory.dmp

    Filesize

    24KB

  • memory/3028-8-0x00000000001C0000-0x00000000001C6000-memory.dmp

    Filesize

    24KB

  • memory/3028-2-0x00000000003F0000-0x00000000003F6000-memory.dmp

    Filesize

    24KB

  • memory/3028-15-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB

  • memory/3028-16-0x0000000002BC0000-0x0000000002BCB000-memory.dmp

    Filesize

    44KB