Analysis

  • max time kernel
    118s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    23-05-2024 16:48

General

  • Target

    2024-05-23_050ad54e13613909c096fc9fe1eb9429_cryptolocker.exe

  • Size

    36KB

  • MD5

    050ad54e13613909c096fc9fe1eb9429

  • SHA1

    2eb861898a65577289b7d9a7d4a09ee047659d97

  • SHA256

    b8d18e315a3b3517bff697de4e950886802980223f25d8771859d98b3bb3126e

  • SHA512

    338f6832a899187164b93ff01c6e50c7f8be6b650c29bde3227d544d1d17a9650d65729db8132796bd9a37f7dd351a7642adc70fcc7fb5c20f318c942ba31c48

  • SSDEEP

    384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzo6ckJp0qAgmEzXKxA+uspNCu:bAvJCYOOvbRPDEgXRc+BAILYfN

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 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).

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-05-23_050ad54e13613909c096fc9fe1eb9429_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-23_050ad54e13613909c096fc9fe1eb9429_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2364
    • C:\Users\Admin\AppData\Local\Temp\demka.exe
      "C:\Users\Admin\AppData\Local\Temp\demka.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      PID:1092

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    37KB

    MD5

    d45dfba22f60ad32384ab772c0cac002

    SHA1

    2fc004bdd5150962a6ca2266ed52b3f682de7b49

    SHA256

    eae54f57d3f791317d6b7e2137bf7147ce6f13897f9501e5f93f1ff58893bdb4

    SHA512

    5aabdf0ac914e3cd7496e9f788cd4d77359b31bf76c67efed66d37eb7281b23e35757e9ba19c3a1d6c5ef847d48049808911442be30933851f21a8a705d3a86d

  • memory/1092-23-0x0000000000380000-0x0000000000386000-memory.dmp

    Filesize

    24KB

  • memory/2364-0-0x0000000000210000-0x0000000000216000-memory.dmp

    Filesize

    24KB

  • memory/2364-1-0x0000000000400000-0x0000000000406000-memory.dmp

    Filesize

    24KB

  • memory/2364-8-0x0000000000210000-0x0000000000216000-memory.dmp

    Filesize

    24KB