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Analysis

  • max time kernel
    153s
  • max time network
    160s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    05/04/2024, 20:34

General

  • Target

    2024-04-05_5903c1818823ac32de496c08bf75e227_cryptolocker.exe

  • Size

    63KB

  • MD5

    5903c1818823ac32de496c08bf75e227

  • SHA1

    b793839c76bbae1fd968585dabff7d34419378a8

  • SHA256

    4f36558b30a0c30138d276ad1e5163e6e8c96fe67188a8eecc3b79c1d06925d5

  • SHA512

    07695ad43c40f84e07c7e549bf803ddfbf7d573ca2f79b6f43e000c2f3802365990937e6ecf3f2f9dfcbe3c5696e6898dcf15b54d46095760934ddc2cbe02479

  • SSDEEP

    768:zQz7yVEhs9+syJP6ntOOtEvwDpjFelaB7yBEY9Su8F5mnVwfX7:zj+soPSMOtEvwDpj4kpmeLmnw7

Score
9/10
upx

Malware Config

Signatures

  • Detection of CryptoLocker Variants 6 IoCs
  • Detection of Cryptolocker Samples 5 IoCs
  • UPX dump on OEP (original entry point) 5 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 5 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 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-04-05_5903c1818823ac32de496c08bf75e227_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-05_5903c1818823ac32de496c08bf75e227_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:840
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:3028

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    64KB

    MD5

    7245ba12664d18f22df5f19cf0d0f207

    SHA1

    c8c5b447670cf8b874f1ff410c17c5a9dcd2dd76

    SHA256

    52f84d9f0f097069e683b0357ed604c297c028825c7b82dd8325979b7137ad81

    SHA512

    5afcb5223b915e56b54ad0d2a18a508f4e7c20131b8779aa093ed56b3fc9c3c24aa7f45a85373f2e4178f198dd5bc00ac0c49db446ce4d0213a8a78f6a44e265

  • memory/840-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/840-1-0x0000000000430000-0x0000000000436000-memory.dmp

    Filesize

    24KB

  • memory/840-2-0x0000000000460000-0x0000000000466000-memory.dmp

    Filesize

    24KB

  • memory/840-3-0x0000000000430000-0x0000000000436000-memory.dmp

    Filesize

    24KB

  • memory/840-15-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/840-13-0x00000000006F0000-0x0000000000700000-memory.dmp

    Filesize

    64KB

  • memory/3028-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/3028-19-0x0000000000450000-0x0000000000456000-memory.dmp

    Filesize

    24KB

  • memory/3028-26-0x0000000000420000-0x0000000000426000-memory.dmp

    Filesize

    24KB

  • memory/3028-27-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB