Analysis

  • max time kernel
    139s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230824-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230824-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/08/2023, 15:36

General

  • Target

    81b68ac19403f706cd0cb6678b2bc97b_cryptolocker_JC.exe

  • Size

    117KB

  • MD5

    81b68ac19403f706cd0cb6678b2bc97b

  • SHA1

    969b875fdab4d470de3f1c4a8c423853469282e4

  • SHA256

    06fc338df2bdc6038e24069e94f4e9979bd1f3c961d75dac1e2ac51566a9b9e0

  • SHA512

    efff07481f2d9b81274cde1d838befef2040ff3df9399444adb7202d8061f13b54fd64e5c1231494b57aa43ac76ed88d8d5602f8628a23c423efa9f473d93873

  • SSDEEP

    768:gUQz7yVEhs9+4T/1bytOOtEvwDpjNbZ7uyA36S7MpxRIIXVe3mU9TYwlOBT2:gUj+AIMOtEvwDpjNbwQEIPlemUhYm

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 10 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\81b68ac19403f706cd0cb6678b2bc97b_cryptolocker_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\81b68ac19403f706cd0cb6678b2bc97b_cryptolocker_JC.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4308
    • 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:5060

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    117KB

    MD5

    e6d45b324069dbeba1ca877918bba414

    SHA1

    3a0bd17db525a3bc355b769a45cd08258c8ae082

    SHA256

    21a2cf10865f22b4dc414eeb38e470ce3474723f98d28eca6a65dcbf41ee836d

    SHA512

    91aadb2cbf74b0b659585d03cc829b9d04d459c2962d7ad3bcbfbe91ee68a0dc6adcd4d4243ab6849270f0959b771eb009f5fb058dcfa5a9f83c35dbfb9652b4

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

    Filesize

    117KB

    MD5

    e6d45b324069dbeba1ca877918bba414

    SHA1

    3a0bd17db525a3bc355b769a45cd08258c8ae082

    SHA256

    21a2cf10865f22b4dc414eeb38e470ce3474723f98d28eca6a65dcbf41ee836d

    SHA512

    91aadb2cbf74b0b659585d03cc829b9d04d459c2962d7ad3bcbfbe91ee68a0dc6adcd4d4243ab6849270f0959b771eb009f5fb058dcfa5a9f83c35dbfb9652b4

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

    Filesize

    117KB

    MD5

    e6d45b324069dbeba1ca877918bba414

    SHA1

    3a0bd17db525a3bc355b769a45cd08258c8ae082

    SHA256

    21a2cf10865f22b4dc414eeb38e470ce3474723f98d28eca6a65dcbf41ee836d

    SHA512

    91aadb2cbf74b0b659585d03cc829b9d04d459c2962d7ad3bcbfbe91ee68a0dc6adcd4d4243ab6849270f0959b771eb009f5fb058dcfa5a9f83c35dbfb9652b4

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/4308-0-0x00000000005E0000-0x00000000005E6000-memory.dmp

    Filesize

    24KB

  • memory/4308-1-0x00000000005E0000-0x00000000005E6000-memory.dmp

    Filesize

    24KB

  • memory/4308-2-0x0000000000600000-0x0000000000606000-memory.dmp

    Filesize

    24KB

  • memory/5060-17-0x00000000005B0000-0x00000000005B6000-memory.dmp

    Filesize

    24KB

  • memory/5060-18-0x0000000000590000-0x0000000000596000-memory.dmp

    Filesize

    24KB