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Analysis

  • max time kernel
    138s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/08/2023, 11:09

General

  • Target

    8308ac3a67aacd5c8b31c88f4f7bdf3d_cryptolocker_JC.exe

  • Size

    71KB

  • MD5

    8308ac3a67aacd5c8b31c88f4f7bdf3d

  • SHA1

    b58f3ccc6a88f820bb23413fbbc1df3d213347e2

  • SHA256

    d9d0fc30e98448cc39be7991b9df0cd66555744214b6eab46161b77f4cb87607

  • SHA512

    8a5fbada6d44e118889158012bf0b99d44c6530f0a31965cdb4dd4adf878e03fd7d9648586886d56ee501d46060adb25584c64018152990ddb5403395126fe7c

  • SSDEEP

    1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3hvLb5V5yW:ZVxkGOtEvwDpjcalN

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8308ac3a67aacd5c8b31c88f4f7bdf3d_cryptolocker_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\8308ac3a67aacd5c8b31c88f4f7bdf3d_cryptolocker_JC.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1332
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      PID:2340

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    71KB

    MD5

    be15cdf04c1231a2afbdca43ac1513e1

    SHA1

    7131421acfbbebc5513759717fb530600aefbba0

    SHA256

    7385df4f4d1cd15372e9659989445cd8354fdfa47d60dd18e12017c61c7d7adf

    SHA512

    004deb2d85da52cc09533190c1b6fe4f6051b09f07ecd19773b7f10530a296e749e83890a4e9ceae7d67f571f6d384d28ebff44594148453934535a14e586c14

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

    Filesize

    71KB

    MD5

    be15cdf04c1231a2afbdca43ac1513e1

    SHA1

    7131421acfbbebc5513759717fb530600aefbba0

    SHA256

    7385df4f4d1cd15372e9659989445cd8354fdfa47d60dd18e12017c61c7d7adf

    SHA512

    004deb2d85da52cc09533190c1b6fe4f6051b09f07ecd19773b7f10530a296e749e83890a4e9ceae7d67f571f6d384d28ebff44594148453934535a14e586c14

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

    Filesize

    71KB

    MD5

    be15cdf04c1231a2afbdca43ac1513e1

    SHA1

    7131421acfbbebc5513759717fb530600aefbba0

    SHA256

    7385df4f4d1cd15372e9659989445cd8354fdfa47d60dd18e12017c61c7d7adf

    SHA512

    004deb2d85da52cc09533190c1b6fe4f6051b09f07ecd19773b7f10530a296e749e83890a4e9ceae7d67f571f6d384d28ebff44594148453934535a14e586c14

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1332-133-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/1332-134-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/1332-135-0x0000000000680000-0x0000000000686000-memory.dmp

    Filesize

    24KB

  • memory/2340-149-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/2340-151-0x0000000000750000-0x0000000000756000-memory.dmp

    Filesize

    24KB