Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/10/2024, 03:01

General

  • Target

    2024-10-15_d1be83972a93c64aca04ffd5f9831706_cryptolocker.exe

  • Size

    82KB

  • MD5

    d1be83972a93c64aca04ffd5f9831706

  • SHA1

    2958c0e8cb947ae9fc4de7c2a782e93028348611

  • SHA256

    ad34fa6322171618f3d373b95580412bb9b3635844bf5299ddab7157a88f7fb6

  • SHA512

    830bfe975f1030ccb1e8b48b373fd4e5044e7a890c6a8a892af22c9545fc5dd1f97811f65c75c9eafe030af3c5c9d640ad423eb9d42918336fde49bc6c890db7

  • SSDEEP

    1536:zj+soPSMOtEvwDpj4ktBl01hJ0tq1ky7Qp:zCsanOtEvwDpjt

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\2024-10-15_d1be83972a93c64aca04ffd5f9831706_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-15_d1be83972a93c64aca04ffd5f9831706_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3492
    • 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:1752

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          82KB

          MD5

          ad4a4e6f65e8d2bc412eb6e02b63135d

          SHA1

          f35f417db85c89d01483dd8cbeb36ec82d10f360

          SHA256

          c661c6cd498526d0cecc03a7937f93e4aac7336b58efeca8cc384a90c2041858

          SHA512

          99d417f79589eadac03eeda3817af4def4197416180cf4803b09bcb7a9caef7f2b4d71027ebed8be92db4a49d1b42c1af8b81c91e23f510fd23d15c6601a13bc

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

          Filesize

          315B

          MD5

          a34ac19f4afae63adc5d2f7bc970c07f

          SHA1

          a82190fc530c265aa40a045c21770d967f4767b8

          SHA256

          d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

          SHA512

          42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

        • memory/1752-18-0x00000000004F0000-0x00000000004F6000-memory.dmp

          Filesize

          24KB

        • memory/1752-25-0x00000000004D0000-0x00000000004D6000-memory.dmp

          Filesize

          24KB

        • memory/1752-48-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/3492-0-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/3492-1-0x00000000020E0000-0x00000000020E6000-memory.dmp

          Filesize

          24KB

        • memory/3492-2-0x00000000020E0000-0x00000000020E6000-memory.dmp

          Filesize

          24KB

        • memory/3492-3-0x0000000002100000-0x0000000002106000-memory.dmp

          Filesize

          24KB

        • memory/3492-24-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB