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Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    09/10/2024, 09:29

General

  • Target

    2024-10-09_d6fe99b1391faae862c9a1a0586386eb_cryptolocker.exe

  • Size

    55KB

  • MD5

    d6fe99b1391faae862c9a1a0586386eb

  • SHA1

    6688882b8eea59cb03be3c5e7f066bd47a7ac087

  • SHA256

    f5a3dbda2c060716ba602220fb5b12a99ef42d443d9877b6458936cdd27c7c59

  • SHA512

    d09736ce6f9a6e143eda2236f01678b3230af755bb1c2d80f096764764b7419b9bce94986f6ea726315027001cf77f760523c9439640f45c26599420f9b797a7

  • SSDEEP

    768:bco/2n1TCraU6GD1P2wZEjbhxnbcuyD7U9kXDn62tH/1/LpPFPg:b7/y28wZEjbnouy8G76iH/NLpW

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 2 IoCs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-10-09_d6fe99b1391faae862c9a1a0586386eb_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-09_d6fe99b1391faae862c9a1a0586386eb_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:376
    • C:\Users\Admin\AppData\Local\Temp\rewok.exe
      "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of UnmapMainImage
      PID:2888

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    55KB

    MD5

    1ad94e3c22653d1615a7a4b36c38555c

    SHA1

    92f239183cbef7dba4ad4877278f4a4f58ac7d26

    SHA256

    a018f7ae3fe210717095d71797ba10518611716e8f1edb88a05a3b2840332a16

    SHA512

    7814b10612f7432ec2ce164acd39c830a858226590f32bee995cf51d7e7676543d2f84225b209711187f0d2e65d6084dc841de03772307bd58d805cd4121d4dd

  • memory/376-0-0x0000000000400000-0x000000000040E000-memory.dmp

    Filesize

    56KB

  • memory/376-1-0x00000000003D0000-0x00000000003D6000-memory.dmp

    Filesize

    24KB

  • memory/376-2-0x0000000000400000-0x0000000000406000-memory.dmp

    Filesize

    24KB

  • memory/376-9-0x00000000003D0000-0x00000000003D6000-memory.dmp

    Filesize

    24KB