Analysis

  • max time kernel
    148s
  • max time network
    150s
  • 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 12:14

General

  • Target

    2024-09-05_b8b222dcd033cc712dba831fa98ff70b_cryptolocker.exe

  • Size

    40KB

  • MD5

    b8b222dcd033cc712dba831fa98ff70b

  • SHA1

    f091ad6cbaea728ba3c3824655193c1df150836a

  • SHA256

    606f6b8da4a238985e15df547cfcd08ae578a4f9b6d8f29512faaf35ad9aaec0

  • SHA512

    0712563794fdddcb38f21f861e59dd4456fe1564bf49a8299da63b3595017a6db79d91ddbc0f4b1f29752bd5ccf917fe1f2c42361ef05cb1b01f60885bc2b520

  • SSDEEP

    768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjLeJAsKuD+B:ZzFbxmLPWQMOtEvwDpjLeJAsKcE

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 10 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-05_b8b222dcd033cc712dba831fa98ff70b_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-05_b8b222dcd033cc712dba831fa98ff70b_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4996
    • 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:3636

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    40KB

    MD5

    2204bf8906c4f27fe72648d3afb331b6

    SHA1

    8c27981045f6f0d25790432bd9d859ac6d150edb

    SHA256

    e02cc3fc41ebc8962fe8da5505a33a865326df0a9032d3811ff65eeb3518e5ad

    SHA512

    d948a6aed3d78e345c76605f4c9b488b59cafff9ad58b172c2e3e8f70b1fad260094989837d0d1196ae51d7cea27235e5b26bf74cc711ebae48a53b928b81eaf

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/3636-25-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/3636-19-0x00000000006E0000-0x00000000006E6000-memory.dmp

    Filesize

    24KB

  • memory/4996-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB

  • memory/4996-1-0x00000000006F0000-0x00000000006F6000-memory.dmp

    Filesize

    24KB

  • memory/4996-2-0x00000000006F0000-0x00000000006F6000-memory.dmp

    Filesize

    24KB

  • memory/4996-3-0x0000000000710000-0x0000000000716000-memory.dmp

    Filesize

    24KB

  • memory/4996-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB