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Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/08/2023, 10:35

General

  • Target

    50c3e4959db59b1e862e1204aef8f626_cryptolocker_JC.exe

  • Size

    45KB

  • MD5

    50c3e4959db59b1e862e1204aef8f626

  • SHA1

    6958b6ac7cf5d9ca915d75b9b05c3f9cbf894a37

  • SHA256

    a8a04863dd21972a853612eb631ee09aebf9b331fad88ba7023313b5f51ec4cf

  • SHA512

    296553e054690771e8b0ea171c28ccc2bae0e911c70b036eee5bda407cb6707a87f245720c7555b0c4ed38fad1553c329f13812ee5d6f404bc232ac4e7846be1

  • SSDEEP

    768:bIDOw9UiaCHfjnE0Sfa7ilR0p9u6p4ICNBCXKZ:bIDOw9a0DwitDZzo

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).

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\50c3e4959db59b1e862e1204aef8f626_cryptolocker_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\50c3e4959db59b1e862e1204aef8f626_cryptolocker_JC.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1868
    • C:\Users\Admin\AppData\Local\Temp\lossy.exe
      "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
      2⤵
      • Executes dropped EXE
      PID:4176

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    45KB

    MD5

    bb507401e76ed36d980ae9e30f814304

    SHA1

    92761feed019b496723619fd12cdeac6d5d085ff

    SHA256

    bf05306148e52531a703bc3e4beaa786e03187f9f7d81809e69eae1c1fb26dae

    SHA512

    bf39f254fcbec5de5bdeaec0c745aa9eff43f674fb868bd9c8555678a2a764d6fe1a97934cd945a8e1191b79f3689cd3942f8f3c33a0ae0d91aabbc90785011d

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

    Filesize

    45KB

    MD5

    bb507401e76ed36d980ae9e30f814304

    SHA1

    92761feed019b496723619fd12cdeac6d5d085ff

    SHA256

    bf05306148e52531a703bc3e4beaa786e03187f9f7d81809e69eae1c1fb26dae

    SHA512

    bf39f254fcbec5de5bdeaec0c745aa9eff43f674fb868bd9c8555678a2a764d6fe1a97934cd945a8e1191b79f3689cd3942f8f3c33a0ae0d91aabbc90785011d

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

    Filesize

    45KB

    MD5

    bb507401e76ed36d980ae9e30f814304

    SHA1

    92761feed019b496723619fd12cdeac6d5d085ff

    SHA256

    bf05306148e52531a703bc3e4beaa786e03187f9f7d81809e69eae1c1fb26dae

    SHA512

    bf39f254fcbec5de5bdeaec0c745aa9eff43f674fb868bd9c8555678a2a764d6fe1a97934cd945a8e1191b79f3689cd3942f8f3c33a0ae0d91aabbc90785011d

  • memory/1868-133-0x00000000005E0000-0x00000000005E6000-memory.dmp

    Filesize

    24KB

  • memory/1868-134-0x00000000005E0000-0x00000000005E6000-memory.dmp

    Filesize

    24KB

  • memory/1868-135-0x00000000021A0000-0x00000000021A6000-memory.dmp

    Filesize

    24KB

  • memory/4176-151-0x00000000006D0000-0x00000000006D6000-memory.dmp

    Filesize

    24KB

  • memory/4176-150-0x0000000000590000-0x0000000000596000-memory.dmp

    Filesize

    24KB