Analysis

  • max time kernel
    135s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-09-2024 06:32

General

  • Target

    2024-09-19_d8fc97795a9cf6dc192b1cd4507db15e_cryptolocker.exe

  • Size

    45KB

  • MD5

    d8fc97795a9cf6dc192b1cd4507db15e

  • SHA1

    62d3df4729c440b8d6a7a3e8e9408e729522e2fc

  • SHA256

    79079c048e65d6f83a8d5bcaf8196a94f0a024704ec93aaf3c36fd9d267c1801

  • SHA512

    eb3f750c3301c600a110719d2a9134d798911d17bf58eea6d46db1ff30a65d7d12eb466ad10f86e366d1ad9223ef5984542f1cfb2a2ae5ed4ea5e8cfc7e6ba55

  • SSDEEP

    768:xQz7yVEhs9+4uR1bytOOtEvwDpjWE6BLtldfw:xj+VGMOtEvwDpjk/fw

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\2024-09-19_d8fc97795a9cf6dc192b1cd4507db15e_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-19_d8fc97795a9cf6dc192b1cd4507db15e_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4972
    • 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:1884

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    45KB

    MD5

    9f2aedfe3fa7e8c700aad6024a83348c

    SHA1

    863cd631e2d30a938ae127ea2ed2a25d620942b5

    SHA256

    fe6b10faa900cee0b62b5b2b2ea4cd2854c7f969a050cd3d2ef86b9288c9b55c

    SHA512

    c30846ef1c90351f9c40ebf7b2be6755ee5152ce14efb5d5a2f4a926c621cf4616e6380a56fb8df51b474670f10fe538105a609caa3aa09db2215dde486262ea

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1884-19-0x00000000006B0000-0x00000000006B6000-memory.dmp

    Filesize

    24KB

  • memory/1884-20-0x00000000007E0000-0x00000000007E6000-memory.dmp

    Filesize

    24KB

  • memory/1884-48-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/4972-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/4972-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

    Filesize

    24KB

  • memory/4972-2-0x00000000004E0000-0x00000000004E6000-memory.dmp

    Filesize

    24KB

  • memory/4972-3-0x00000000005E0000-0x00000000005E6000-memory.dmp

    Filesize

    24KB

  • memory/4972-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB