Analysis

  • max time kernel
    148s
  • 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
    29-09-2024 01:27

General

  • Target

    2024-09-29_6921bb393fcf7f61d900b5b743bb1e80_cryptolocker.exe

  • Size

    57KB

  • MD5

    6921bb393fcf7f61d900b5b743bb1e80

  • SHA1

    0f47a6769dc751cc2627a52f2a299bd0d92ff179

  • SHA256

    a452fce86846e8d61baeb9dfd232c1bb2ca9beaead40d345bae831d46929984d

  • SHA512

    80c1e3e8e6590d64e3cff55688d4ffbbb913b8219bcbc791b64fb94f522e9487eae88cd838bbac91c5c4f77840099c3269b985a24139d941fe5523d91427fc05

  • SSDEEP

    1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EM0:TCjsIOtEvwDpj5HE/OUHnSM7

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
  • 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\2024-09-29_6921bb393fcf7f61d900b5b743bb1e80_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-29_6921bb393fcf7f61d900b5b743bb1e80_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4508
    • 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:3212

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    58KB

    MD5

    646d2980e132e50f0b6780d504919c7d

    SHA1

    103a55e67a3daa32da0499bca8597e2517c65b65

    SHA256

    2e7283c926f9dbe921485f59408b4267b7c4bab250f7c7d5b903ed80bd728cf8

    SHA512

    3f8fede30411ff41a679aa35049dc6e86bb1826365ec34f2e9e53b544b608247acc454955d0b1e91900f0b6cffbc8e9299cff1e079b65aa164ad18cee28ea9c2

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/3212-20-0x00000000006C0000-0x00000000006C6000-memory.dmp

    Filesize

    24KB

  • memory/3212-19-0x0000000000560000-0x0000000000566000-memory.dmp

    Filesize

    24KB

  • memory/3212-48-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/4508-0-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/4508-1-0x00000000007F0000-0x00000000007F6000-memory.dmp

    Filesize

    24KB

  • memory/4508-2-0x00000000007F0000-0x00000000007F6000-memory.dmp

    Filesize

    24KB

  • memory/4508-3-0x0000000000810000-0x0000000000816000-memory.dmp

    Filesize

    24KB

  • memory/4508-17-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB