Analysis

  • max time kernel
    140s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/09/2024, 13:35

General

  • Target

    2024-09-01_77ff9387b0f0e0a3cd94f916eec574aa_cryptolocker.exe

  • Size

    46KB

  • MD5

    77ff9387b0f0e0a3cd94f916eec574aa

  • SHA1

    442b9390cd1809e32ec270a0b5ad301b2fc41508

  • SHA256

    7ee4874784d5feea6e3c24766d91432767843e7d831eb7625ce6bd7b04633fc2

  • SHA512

    9636d1f328fde00d208fbe2ce5a0eb07cf3f8a9ba75461e9c731717f241a05b5f249bb88134b3192fcab7e9967ff92d350da94f83a02e8dda579baa967a219d3

  • SSDEEP

    768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4tKMLGokeA2+laALk:vj+jsMQMOtEvwDpj5Ht1qok51Ro

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\2024-09-01_77ff9387b0f0e0a3cd94f916eec574aa_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-01_77ff9387b0f0e0a3cd94f916eec574aa_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3600
    • 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:4204

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    46KB

    MD5

    9e09f7c108794cdba6ce4ab0a6e1db7f

    SHA1

    f12a10398ef807c57a4fbab1ea0a3b0cb1f19b84

    SHA256

    242fbd73e5cc9cc030c860033d7704d67297e8e63c6b35af1ee2e14e48c7dfd7

    SHA512

    f8d4d5633ffcf4d9b1d0a3d25809a67ac1d7e44bde28cabf0fe142c888d139be8bf5539b05bf04b0493e26707bf28500965a67fe9c5eec421644116f9cb79fcc

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/3600-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/3600-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/3600-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/4204-18-0x00000000006C0000-0x00000000006C6000-memory.dmp

    Filesize

    24KB

  • memory/4204-17-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB