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Analysis

  • max time kernel
    0s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    05/01/2024, 05:42

General

  • Target

    2024-01-01_51864fa29ad7aacc38a616968039c082_cryptolocker.exe

  • Size

    51KB

  • MD5

    51864fa29ad7aacc38a616968039c082

  • SHA1

    f4c6e2a9504de7ab66555b68345f1abb541d797b

  • SHA256

    eacaf081a32c8c53b0e0a7f0bdf43f50867d63373a81816adf61c29150b57bda

  • SHA512

    044512a6364587e87a9cfb292badf0a99c16853b26180b662d06e1d2040d1987635dbf4f9b2a2d941b9e19bc6728c2f572d9f75adda468a0e1ddd495eb614f0d

  • SSDEEP

    768:bIDOw9UiaCHfjnE0Sfa7ilR0p9u6p4ICNBCXK9S1bk:bIDOw9a0DwitDZz11Q

Score
7/10

Malware Config

Signatures

  • 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\lossy.exe
    "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
    1⤵
    • Executes dropped EXE
    PID:2828
  • C:\Users\Admin\AppData\Local\Temp\2024-01-01_51864fa29ad7aacc38a616968039c082_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-01_51864fa29ad7aacc38a616968039c082_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2428

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    44KB

    MD5

    5526f6e6e79c51675c6b95459ccbb654

    SHA1

    2d26be5be652de1c9777c1b16f32ddc7b2913b84

    SHA256

    15dab231d018b031cd149359a6730db8040a33da61d52a47a8701e75d8a54138

    SHA512

    41418a9f6fec5c90e4d125a11ab650943872c059b345887703b49f8a1263cf4103e1122b07c5af357c10ed7c78aa9c25bd01ae75c5d2942192aa39494e5774a6

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

    Filesize

    23KB

    MD5

    00975a9a5851421b0f14436f940fc01d

    SHA1

    7103880c763db3265805e67a794ddb13854cb3d3

    SHA256

    fb8cbb25cbc502a835a424f19868b3fc7344d05a841f7c840e369c9dffa16c67

    SHA512

    2e8df770e2ed0f52be9f2f129d1ce3f72679567257f6d510ab8cfb689a0308b947298a73d9152639f1448803c686e2a24d2fc718fc5c6ffd7bae5af2b2e8a9e5

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

    Filesize

    51KB

    MD5

    48201c648425fa0e5b5c33dc25e8398b

    SHA1

    e62b1d157bff2e8f33ab8bffda5cddbfad1e4872

    SHA256

    91ee029a5cc83adcee82440a2107edb21d8ec953abe1f4c33764bd0e7e3937b2

    SHA512

    adcacdad91b0e56cf0506e5598b6a219a0ba960258a7b878fe19fb94062dddad2da98075f184ce392ad3c83befdac9bd94531acd6e735aa8b2b16c6fdc4d6ba2

  • memory/2428-8-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/2428-1-0x0000000000460000-0x0000000000466000-memory.dmp

    Filesize

    24KB

  • memory/2428-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/2828-15-0x00000000001C0000-0x00000000001C6000-memory.dmp

    Filesize

    24KB

  • memory/2828-16-0x00000000003F0000-0x00000000003F6000-memory.dmp

    Filesize

    24KB