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Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    09/05/2024, 18:44

General

  • Target

    2024-05-09_3fab226e2695d745a4c7b2606eff16e8_cryptolocker.exe

  • Size

    42KB

  • MD5

    3fab226e2695d745a4c7b2606eff16e8

  • SHA1

    fb69460381e3c1995aa971cf715a46580493004b

  • SHA256

    5465b5102fe150c2295e1b71b0cf9bd95b7abe7c81e3a153655ab3d6e8a3679a

  • SHA512

    74970c2167e02d502e4a81489c3f8f02a43059a3174ea3bceaf3d7941f7e2aa74f2433ceabc97e3d5aa38e476d7e52a42e1610fb48b3659326cc06f346cc955f

  • SSDEEP

    768:bCDOw9UiaKHfjnD0S16avdrQFiLjJvtAydI:bCDOw9aMDooc+vAym

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • 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\2024-05-09_3fab226e2695d745a4c7b2606eff16e8_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-09_3fab226e2695d745a4c7b2606eff16e8_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1924
    • C:\Users\Admin\AppData\Local\Temp\lossy.exe
      "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
      2⤵
      • Executes dropped EXE
      PID:1648

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    43KB

    MD5

    84786bf6ee597a31fd8a9db1ab7c772d

    SHA1

    86cf50062a5a1d459f68254219233451a477b0a4

    SHA256

    456384ecb38e0725131d89ea9fee51ab31d9e54cf6cb7173fb1c17114b59063f

    SHA512

    b6f89ed7039c8c8d9dd1d799815a63c161d6cfa34f42f4ca7ff0cea74748f5dc0f9ed8bb44dc7e39dfd4365e2169adbfaa4e1099ebe7819a2a7babd20316fe98

  • memory/1648-19-0x00000000020A0000-0x00000000020A6000-memory.dmp

    Filesize

    24KB

  • memory/1648-18-0x0000000008000000-0x000000000800A000-memory.dmp

    Filesize

    40KB

  • memory/1648-17-0x0000000001C50000-0x0000000001C56000-memory.dmp

    Filesize

    24KB

  • memory/1924-0-0x0000000008000000-0x000000000800A000-memory.dmp

    Filesize

    40KB

  • memory/1924-1-0x0000000000350000-0x0000000000356000-memory.dmp

    Filesize

    24KB

  • memory/1924-2-0x0000000000350000-0x0000000000356000-memory.dmp

    Filesize

    24KB

  • memory/1924-3-0x0000000000390000-0x0000000000396000-memory.dmp

    Filesize

    24KB

  • memory/1924-15-0x0000000008000000-0x000000000800A000-memory.dmp

    Filesize

    40KB