Analysis

  • max time kernel
    94s
  • max time network
    131s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-09-2024 12:11

General

  • Target

    2024-09-05_8f7cf30cd4c07959284fc873219384fc_cryptolocker.exe

  • Size

    85KB

  • MD5

    8f7cf30cd4c07959284fc873219384fc

  • SHA1

    20491706e832292a17c9608471e7cad1a519ed03

  • SHA256

    af46359fb8a8559b3ab8b1f7de35528939932f2c35500a9279052f59feedba5e

  • SHA512

    9411894d66e31f68bc04f98a904e7e0a2b513dd90eb645743da1d3f1b30400a36be139d0084bb053e0ef8049e63f5903fb248fb07542c98cba06480885cddd81

  • SSDEEP

    1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMMrCsr:TCjsIOtEvwDpj5HE/OUHnSMH

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\2024-09-05_8f7cf30cd4c07959284fc873219384fc_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-05_8f7cf30cd4c07959284fc873219384fc_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4796
    • 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:3452

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    86KB

    MD5

    e6d588d58836b7bdd3b551c0a38d56be

    SHA1

    b344d2893a0dc57284be66aea350b68b0aea6d02

    SHA256

    e47ad502f14c8d72c43dd791348d890ae2358973f805cf0f0bb129906ee368b6

    SHA512

    7ca9e700c338bb615e2223eb7bbbb9cc6f6d34d867689ea64a37a416131a34c8c95d9cabd0e87813d138532415f850565675d7ac7fe837fe110f9ab014678da1

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/3452-19-0x00000000006C0000-0x00000000006C6000-memory.dmp

    Filesize

    24KB

  • memory/3452-25-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/3452-48-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/4796-0-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/4796-1-0x00000000007B0000-0x00000000007B6000-memory.dmp

    Filesize

    24KB

  • memory/4796-2-0x00000000007B0000-0x00000000007B6000-memory.dmp

    Filesize

    24KB

  • memory/4796-3-0x0000000002070000-0x0000000002076000-memory.dmp

    Filesize

    24KB

  • memory/4796-17-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB