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Analysis

  • max time kernel
    148s
  • max time network
    159s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/08/2023, 10:51

General

  • Target

    6b325f5ee5c7b26589e809d1af76b4c8_cryptolocker_JC.exe

  • Size

    99KB

  • MD5

    6b325f5ee5c7b26589e809d1af76b4c8

  • SHA1

    8019dba09139e31b1e33b6722087a4d288edf9af

  • SHA256

    a40ccb1a0f92a06521b2feeaccb5f4208573344f562d6c6d94709ab5f9b65f42

  • SHA512

    715ebcb8f61933f616c6a0f6601f28c2f7bb312081b8b341f6916d7d7f99811dcc8cc177630307e7bea8bd1deb454971b4ba3f57f039ca253fddf8a072318fb0

  • SSDEEP

    1536:P8mnK6QFElP6n+gymddpMOtEvwDpjIHsalRn58+g:1nK6a+qdOOtEvwDpj3

Score
7/10
upx

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • UPX packed file 6 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6b325f5ee5c7b26589e809d1af76b4c8_cryptolocker_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\6b325f5ee5c7b26589e809d1af76b4c8_cryptolocker_JC.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2872
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:4404

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    99KB

    MD5

    937b621bb3ec6356d6971e15e7f0233c

    SHA1

    a92a3c1c105ab13560f8238ca2c564845aadff06

    SHA256

    8135ee879da4db178478a4f43312bd34a489f50a788922ef6535e669c0324db4

    SHA512

    6cacb3b8033436cfac2e93eaadb07461a2d8573890a93e1a8bd04be8f491cc1b4b36e721ca8b1765579d0b21c884aaec949d497bdb905cc6f7b4325c69bcc79d

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

    Filesize

    99KB

    MD5

    937b621bb3ec6356d6971e15e7f0233c

    SHA1

    a92a3c1c105ab13560f8238ca2c564845aadff06

    SHA256

    8135ee879da4db178478a4f43312bd34a489f50a788922ef6535e669c0324db4

    SHA512

    6cacb3b8033436cfac2e93eaadb07461a2d8573890a93e1a8bd04be8f491cc1b4b36e721ca8b1765579d0b21c884aaec949d497bdb905cc6f7b4325c69bcc79d

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

    Filesize

    99KB

    MD5

    937b621bb3ec6356d6971e15e7f0233c

    SHA1

    a92a3c1c105ab13560f8238ca2c564845aadff06

    SHA256

    8135ee879da4db178478a4f43312bd34a489f50a788922ef6535e669c0324db4

    SHA512

    6cacb3b8033436cfac2e93eaadb07461a2d8573890a93e1a8bd04be8f491cc1b4b36e721ca8b1765579d0b21c884aaec949d497bdb905cc6f7b4325c69bcc79d

  • memory/2872-134-0x0000000000500000-0x000000000050F311-memory.dmp

    Filesize

    60KB

  • memory/2872-135-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/2872-136-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/2872-137-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/2872-151-0x0000000000500000-0x000000000050F311-memory.dmp

    Filesize

    60KB

  • memory/4404-154-0x0000000001FF0000-0x0000000001FF6000-memory.dmp

    Filesize

    24KB

  • memory/4404-153-0x00000000006B0000-0x00000000006B6000-memory.dmp

    Filesize

    24KB

  • memory/4404-160-0x0000000000500000-0x000000000050F311-memory.dmp

    Filesize

    60KB