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Analysis

  • max time kernel
    122s
  • max time network
    139s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    16/03/2024, 10:00

General

  • Target

    2024-03-16_e8961213188e697df2f2601505a5ef8f_cryptolocker.exe

  • Size

    47KB

  • MD5

    e8961213188e697df2f2601505a5ef8f

  • SHA1

    cd8e02566f530ffcf9ef457349f308d04248e7c8

  • SHA256

    3fc57906d505bfd76350c3630ab23bf6fb9dc1e693ae3c53440aaca7b55fe3d4

  • SHA512

    b80ca0cdae0f63a3c620d5952e03c961f54affbd64d4a043d9f2b0539fea2087507c54403de2fb83dee978909db9f1563c9e710f2c7a39484dbc5a08beffdab6

  • SSDEEP

    768:btB9g/WItCSsAGjX7r3BPOMHoc/QQJP5wjvaHYwiN:btB9g/xtCSKfxLIc/E1d

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).

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-03-16_e8961213188e697df2f2601505a5ef8f_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-03-16_e8961213188e697df2f2601505a5ef8f_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2348
    • C:\Users\Admin\AppData\Local\Temp\gewos.exe
      "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of UnmapMainImage
      PID:3068

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    47KB

    MD5

    3ffea408dd0b53aee85691a440894d24

    SHA1

    e360fe64ef845f6a95e13530f674e302cc9f75fb

    SHA256

    bddf94f0dc8e50d4e8b2cf0020e0bf475b0f9a3ea6a315d89b407851765b8873

    SHA512

    b36c484b892066413b308ae6cf232efbe95c4850304f5a7d86cfa9a36f97e2b98202bb924e82e89ef77b84d90187490cb8c34aeea5bda55fa1b19b20575b34b3

  • memory/2348-0-0x00000000003D0000-0x00000000003D6000-memory.dmp

    Filesize

    24KB

  • memory/2348-1-0x0000000000400000-0x0000000000406000-memory.dmp

    Filesize

    24KB

  • memory/2348-2-0x00000000003D0000-0x00000000003D6000-memory.dmp

    Filesize

    24KB

  • memory/3068-20-0x0000000000270000-0x0000000000276000-memory.dmp

    Filesize

    24KB