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Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20231020-en
  • resource tags

    arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
  • submitted
    23/10/2023, 20:52

General

  • Target

    NEAS.2023-09-06_4b49507bbdf9775141d4e6209e60d13a_cryptolocker_JC.exe

  • Size

    41KB

  • MD5

    4b49507bbdf9775141d4e6209e60d13a

  • SHA1

    812c52846b4b414b2456949a2c93aefc11ce1241

  • SHA256

    3e2397413325f6129609fd218cd032909e5e2caa79533fc62e9805abc660a3b7

  • SHA512

    d8e3cb6f7d9c04569bf7b9463285435fd1b663059b788aef3877bc8d2f7aad5e2780737efc06d3153b0b86e97720f611bc5dda16751fcb5ff80c3f836ea529b8

  • SSDEEP

    768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6j4AYsqSh+DETkedm+k:YGzl5wjRQBBOsP1QMOtEvwDpjl39+D+w

Score
7/10

Malware Config

Signatures

  • 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\NEAS.2023-09-06_4b49507bbdf9775141d4e6209e60d13a_cryptolocker_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.2023-09-06_4b49507bbdf9775141d4e6209e60d13a_cryptolocker_JC.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2336
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2432

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    41KB

    MD5

    8742859b7f256bfd3abfb67a54a6a450

    SHA1

    24f3254f3b28638eb1ca436ba5e5a4ebf4bb2dbd

    SHA256

    203d4bde0e5907a7d8036853680ae2f7115821fd5e01ad1bc7acee8a980c9864

    SHA512

    2b5f1febcba7fdc4deee9eb0e406ef6142eac8ceb709fb0fd31ae2c0613fbbaa7ba55aca23083aade9361e0155f20df66ba01f4b7b40e8d44f5ae3c8be1de1c0

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

    Filesize

    41KB

    MD5

    8742859b7f256bfd3abfb67a54a6a450

    SHA1

    24f3254f3b28638eb1ca436ba5e5a4ebf4bb2dbd

    SHA256

    203d4bde0e5907a7d8036853680ae2f7115821fd5e01ad1bc7acee8a980c9864

    SHA512

    2b5f1febcba7fdc4deee9eb0e406ef6142eac8ceb709fb0fd31ae2c0613fbbaa7ba55aca23083aade9361e0155f20df66ba01f4b7b40e8d44f5ae3c8be1de1c0

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

    Filesize

    41KB

    MD5

    8742859b7f256bfd3abfb67a54a6a450

    SHA1

    24f3254f3b28638eb1ca436ba5e5a4ebf4bb2dbd

    SHA256

    203d4bde0e5907a7d8036853680ae2f7115821fd5e01ad1bc7acee8a980c9864

    SHA512

    2b5f1febcba7fdc4deee9eb0e406ef6142eac8ceb709fb0fd31ae2c0613fbbaa7ba55aca23083aade9361e0155f20df66ba01f4b7b40e8d44f5ae3c8be1de1c0

  • memory/2336-0-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB

  • memory/2336-1-0x0000000000320000-0x0000000000326000-memory.dmp

    Filesize

    24KB

  • memory/2336-2-0x0000000000320000-0x0000000000326000-memory.dmp

    Filesize

    24KB

  • memory/2336-3-0x0000000000450000-0x0000000000456000-memory.dmp

    Filesize

    24KB

  • memory/2336-15-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB

  • memory/2432-18-0x0000000000270000-0x0000000000276000-memory.dmp

    Filesize

    24KB

  • memory/2432-17-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2432-25-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB