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Analysis

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

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    23/02/2024, 12:48

General

  • Target

    2024-02-23_8df6b4eb06cd6ff9a1d9f6bcf1afb9c2_cryptolocker.exe

  • Size

    38KB

  • MD5

    8df6b4eb06cd6ff9a1d9f6bcf1afb9c2

  • SHA1

    12635e7e57d1776dfca0917a2cad3f4033637fe7

  • SHA256

    d3c519a9d24fdf5825c951a7cc02118b56ce5d617e2e9e954b502ecb59125f77

  • SHA512

    75fbd25adc22dc7ad6d79f3f30a47579770d7820de0bd6e2ab5c1829fc7fb947e45eace013dd8d43f6ab7d677ed0e29346f780a9e7623f4bf2842db03975f3f7

  • SSDEEP

    384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzoiM8Nekdvjl9V50i3NbF0Qk:bAvJCYOOvbRPDEgXrNekd7l94i3pF0x

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-02-23_8df6b4eb06cd6ff9a1d9f6bcf1afb9c2_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-23_8df6b4eb06cd6ff9a1d9f6bcf1afb9c2_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2200
    • 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:2552

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    344B

    MD5

    ec538f732995c738495501c42228052d

    SHA1

    1a20c900b22002bff83d0e738395ddd6c029c117

    SHA256

    75e0afd8e3396b96fce521917ba1ea882cc97020edf6b659204158e706238c23

    SHA512

    c4528c4bdd4a277cbb9e1133132ffedf263ea5ad4e1d7c1dbf47b2f55a987531c6b727212b6710026f8a5cf67f479f24c2d989a3d1b77dc1bebfa854d81d6338

  • C:\Users\Admin\AppData\Local\Temp\Cab1151.tmp

    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

  • C:\Users\Admin\AppData\Local\Temp\Tar122F.tmp

    Filesize

    171KB

    MD5

    9c0c641c06238516f27941aa1166d427

    SHA1

    64cd549fb8cf014fcd9312aa7a5b023847b6c977

    SHA256

    4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

    SHA512

    936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

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

    Filesize

    38KB

    MD5

    1e2f34b5d9eca6c2a98c1889f0629a0d

    SHA1

    871ffa648167e12b1661c526b633501bdb90aba7

    SHA256

    5b2a860569a9962fd08c1c3e16d030578a2ab26fa48fc6ff212da2ea42d806da

    SHA512

    70df78c8cb3358ef7ba5e441b204a69cac3d14e1fd0ed86da655a0ceafe4dbe62c812a26a7513689c71b543b4a4cf7dc0fc198325c10ae90eb3cab01b870cf41

  • memory/2200-0-0x00000000002A0000-0x00000000002A6000-memory.dmp

    Filesize

    24KB

  • memory/2200-1-0x0000000000400000-0x0000000000406000-memory.dmp

    Filesize

    24KB

  • memory/2200-8-0x00000000002A0000-0x00000000002A6000-memory.dmp

    Filesize

    24KB

  • memory/2552-17-0x0000000000280000-0x0000000000286000-memory.dmp

    Filesize

    24KB