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Analysis

  • max time kernel
    150s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/10/2024, 02:43

General

  • Target

    2024-10-10_070d41a327b452e2321a9becb6e2af75_cryptolocker.exe

  • Size

    28KB

  • MD5

    070d41a327b452e2321a9becb6e2af75

  • SHA1

    c71279ce8487af60b91d4dd5f0ff41cfd9cdbede

  • SHA256

    3abff1298189d27f279d164cfc8ce2aaede0bfa588d49b66ebcaff4287d45931

  • SHA512

    9a2670b558f874e20da7d1d004dfed2b6b89f029264a12cf88e9a48cad7c0f6f1b1669455890279ce98bd988500a41ab4ecacb637d90d4af06d143721a243655

  • SSDEEP

    384:bFgFQrdSmuQ8WFqxpj5cpyIuYxVe3FSr+OLfjDp+0g/HNblX7QCOBqy:bFgm5zusFUB2preAr+Ofjg0STX73OBqy

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • UPX packed file 4 IoCs

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

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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 WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-10-10_070d41a327b452e2321a9becb6e2af75_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-10_070d41a327b452e2321a9becb6e2af75_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4260
    • C:\Users\Admin\AppData\Local\Temp\lossy.exe
      "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:668

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    28KB

    MD5

    bce9e13107958d42be245081802c7219

    SHA1

    03533b7da1885e04e22bce238fba139ccfc9226b

    SHA256

    b3c33d51dbb271da115a567f70ecbac03a2574e47c686b0f8ea9f3ea69a8d04d

    SHA512

    3c67e406497d1173773b48b1370260362e801008f6a2773c3175f1d2af51ca2a6dbeade332c3ec120133eb92d4eb5bf97e4ebaf14aa72d4019be28eba16e462d

  • memory/668-19-0x00000000005A0000-0x00000000005A6000-memory.dmp

    Filesize

    24KB

  • memory/668-26-0x0000000008000000-0x000000000800E000-memory.dmp

    Filesize

    56KB

  • memory/4260-0-0x0000000008000000-0x000000000800E000-memory.dmp

    Filesize

    56KB

  • memory/4260-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/4260-2-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/4260-3-0x0000000002060000-0x0000000002066000-memory.dmp

    Filesize

    24KB

  • memory/4260-17-0x0000000008000000-0x000000000800E000-memory.dmp

    Filesize

    56KB