Analysis

  • max time kernel
    94s
  • max time network
    126s
  • 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, 03:28

General

  • Target

    2024-09-19_51c20cf24e5aea3f8334e15cac1d079c_cryptolocker.exe

  • Size

    72KB

  • MD5

    51c20cf24e5aea3f8334e15cac1d079c

  • SHA1

    62645dd8a312516433663725c998d24cefc74fcd

  • SHA256

    aff81da0202917b517ce82fb06cb61bb2a9a82386d4656f655e5011f9124900b

  • SHA512

    bb8656d73a385a990bf4ea8af5fd344f3439abbb6e3ddfa81b901c67eb125359bdb244ab768d821075d6b02748942a5ff93a8e59584ff6ab0f50db568d6bb87d

  • SSDEEP

    768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4ZPsED3VK2+ZtyOjgO4r9vFAg2rq2g1B/Rp:vj+jsMQMOtEvwDpj5HZYTjipvF24h

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_51c20cf24e5aea3f8334e15cac1d079c_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-19_51c20cf24e5aea3f8334e15cac1d079c_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3056
    • 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:652

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    72KB

    MD5

    fc09928fca4bb47b0bc3f7e009dfc238

    SHA1

    5a0c804471149b70de62deb63103a30210e2cc96

    SHA256

    08098038e2290b4515e31dddcb7b5337b94cfc83095b1db953fc7e684f285a8c

    SHA512

    3d18e0fcb9696967a43fc177bf01aeea150af7c0f6682340c19e07797faab20433e5df8d0f7f5e3d199bd93e1a41a4bcbd73c100dbd1c18c3c5b402f14975aa6

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/652-17-0x0000000000750000-0x0000000000756000-memory.dmp

    Filesize

    24KB

  • memory/652-18-0x0000000000770000-0x0000000000776000-memory.dmp

    Filesize

    24KB

  • memory/3056-0-0x00000000007F0000-0x00000000007F6000-memory.dmp

    Filesize

    24KB

  • memory/3056-1-0x00000000007F0000-0x00000000007F6000-memory.dmp

    Filesize

    24KB

  • memory/3056-2-0x00000000021C0000-0x00000000021C6000-memory.dmp

    Filesize

    24KB