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Analysis

  • max time kernel
    151s
  • max time network
    155s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    23/09/2023, 10:57

General

  • Target

    2023-08-26_1ff59ec3a101a5a0b23f989d887573dc_cryptolocker_JC.exe

  • Size

    59KB

  • MD5

    1ff59ec3a101a5a0b23f989d887573dc

  • SHA1

    26b077e5b63e6d6ad45189918ec56013422bfff8

  • SHA256

    cbd7f6295daf3341817303ed7976c45f04fb5fa14043b9d489a6c19d71c93ce0

  • SHA512

    d3962bbae00807301ecdb996dc8ba3b9805148c599671814f4b9215f6970abd06fe915355f25fa7335791060f927078a4c341d02802589a3b139c62ce5b187a7

  • SSDEEP

    1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF293w:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7e

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 UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2023-08-26_1ff59ec3a101a5a0b23f989d887573dc_cryptolocker_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\2023-08-26_1ff59ec3a101a5a0b23f989d887573dc_cryptolocker_JC.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2128
    • C:\Users\Admin\AppData\Local\Temp\hurok.exe
      "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of UnmapMainImage
      PID:2452

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    60KB

    MD5

    c014a87bca544a7b18e49271c4fe547c

    SHA1

    41f878fa3ef7fc855b2afb359684d61b2fbb7018

    SHA256

    e44df987a2cf72a73631dc04590612f520221c6264f5c131444dedc1b1b142d5

    SHA512

    63993954bb56a383253a089f6caeb8a6a087850790fbce99bb1c2d46045ed4b3f0c540f62b82c76631155eed5b89d617adedf7da2c20e69ecca63199b61a7919

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

    Filesize

    60KB

    MD5

    c014a87bca544a7b18e49271c4fe547c

    SHA1

    41f878fa3ef7fc855b2afb359684d61b2fbb7018

    SHA256

    e44df987a2cf72a73631dc04590612f520221c6264f5c131444dedc1b1b142d5

    SHA512

    63993954bb56a383253a089f6caeb8a6a087850790fbce99bb1c2d46045ed4b3f0c540f62b82c76631155eed5b89d617adedf7da2c20e69ecca63199b61a7919

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

    Filesize

    60KB

    MD5

    c014a87bca544a7b18e49271c4fe547c

    SHA1

    41f878fa3ef7fc855b2afb359684d61b2fbb7018

    SHA256

    e44df987a2cf72a73631dc04590612f520221c6264f5c131444dedc1b1b142d5

    SHA512

    63993954bb56a383253a089f6caeb8a6a087850790fbce99bb1c2d46045ed4b3f0c540f62b82c76631155eed5b89d617adedf7da2c20e69ecca63199b61a7919

  • memory/2128-0-0x0000000000230000-0x0000000000236000-memory.dmp

    Filesize

    24KB

  • memory/2128-1-0x0000000000400000-0x0000000000406000-memory.dmp

    Filesize

    24KB

  • memory/2128-2-0x0000000000230000-0x0000000000236000-memory.dmp

    Filesize

    24KB