Analysis

  • max time kernel
    135s
  • max time network
    126s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/07/2024, 17:24

General

  • Target

    2024-07-26_856d88c0c2757173f02ba317c581fd4c_cryptolocker.exe

  • Size

    72KB

  • MD5

    856d88c0c2757173f02ba317c581fd4c

  • SHA1

    0323f47769a84eb5d89c8df7b852ae4d8e0391d3

  • SHA256

    afa559fd598abc157262da191aa8528bbf54740025f232d27b57229f5fc52b70

  • SHA512

    0b2cdc5fdc74894b3bf17b3683456aaef31ce9a91a08ea3e34341261d74ad90785461b3bb0821815d01ce3871a5732ce9060bccb10e6b789b50390502257387f

  • SSDEEP

    768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4ZPsED3VK2+ZtyOjgO4r9vFAg2rq2g1B/Rw:vj+jsMQMOtEvwDpj5HZYTjipvF24pS

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\2024-07-26_856d88c0c2757173f02ba317c581fd4c_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-07-26_856d88c0c2757173f02ba317c581fd4c_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2512
    • 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:2492

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    72KB

    MD5

    599d3f728e606ac6da6ecbce2d125fbe

    SHA1

    15c1e2e44a76692dfcc573ce7232798425539ded

    SHA256

    fc7cb50e730dd4486a4b532c66da3088a04ad1ddbe6ec4303f8fa8e56d28cb0a

    SHA512

    cbe6764450cc5ee1ff22cd1a332a2dee9b6857b56a82c625d640f19ace0e26a9c82dab2e97fb4f187f06a7b13c7a755189940c51cd638b11aa0c383a3efc5efa

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/2492-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/2492-23-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/2512-0-0x00000000005E0000-0x00000000005E6000-memory.dmp

    Filesize

    24KB

  • memory/2512-1-0x00000000005E0000-0x00000000005E6000-memory.dmp

    Filesize

    24KB

  • memory/2512-2-0x0000000000600000-0x0000000000606000-memory.dmp

    Filesize

    24KB