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Analysis

  • max time kernel
    144s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/09/2024, 13:23

General

  • Target

    2024-09-11_16dccbcbafc339729cac98072f97530a_cryptolocker.exe

  • Size

    82KB

  • MD5

    16dccbcbafc339729cac98072f97530a

  • SHA1

    34583a1746b1e0200e060b1c6a4f60d165635b36

  • SHA256

    c91e312e72f1523144907c6fc3c32cb846181fad880616c0223f2177e041b03c

  • SHA512

    12d2591e1dd13f27f5d4a5c89d62e6e575205f561d6ebe215ca92dd267170a2dbbc279459fd2afe13f80ca33c8e102ae9d46f51105e360b4ffdb86b3d8cffdb5

  • SSDEEP

    1536:zj+soPSMOtEvwDpj4ktBl01hJ0tq1ky7Q4t:zCsanOtEvwDpja

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 2 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.

  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-11_16dccbcbafc339729cac98072f97530a_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-11_16dccbcbafc339729cac98072f97530a_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2344
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies system certificate store
      PID:2916

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    83KB

    MD5

    8b996de033781bf087cf9e31d061a630

    SHA1

    b84b7412b8c326177ba7e63bb390ea31ea54408b

    SHA256

    e669f7d6244d2b8583b829de72374e3515b8c2c4398a2157414707783b8bc67d

    SHA512

    59052e0b56fa2b89575fc40caf861e81a0eb4bfcda5dac5d370b47c10dd13e8d7be04f0319acb1b4a1a3a1f6f89be48b82145a73a95b5c769ad54b3ec9ea3f6c

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/2344-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2344-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/2344-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/2344-3-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/2344-16-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2916-49-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB