Analysis

  • max time kernel
    137s
  • max time network
    170s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-01-2024 06:02

General

  • Target

    2024-01-09_d7e5446e51445733f6b34dbebc4f8594_cryptolocker.exe

  • Size

    37KB

  • MD5

    d7e5446e51445733f6b34dbebc4f8594

  • SHA1

    359bec58dc5d10b6ecfbf6a84427940fbcf7c722

  • SHA256

    dedd529b3d41c117322cac6254071e0d1e40a79e88fcdfa000b0ba3d87060051

  • SHA512

    90e9a461940900fff60e00fbee57695574371c12a3843a670b623bea9a61bd9033bb4c80ffbfb08c4923ca59186b1799cf83655683e312fcd1f7dec29a0db2bb

  • SSDEEP

    768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjLenQLn:ZzFbxmLPWQMOtEvwDpjLeUn

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).

  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-01-09_d7e5446e51445733f6b34dbebc4f8594_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-09_d7e5446e51445733f6b34dbebc4f8594_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1368
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Modifies system certificate store
      PID:2152

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    37KB

    MD5

    907cff5fed8676aa4a410094e828df2b

    SHA1

    5b5c7996ddb5a006f453a8f3608e4923245c0a50

    SHA256

    abb704922a1be1adf6a45200520157b5e7cd70e21d0694cfce53e0297167732a

    SHA512

    7fda78c786f21e221b1903cceb58628e76d0aaa81cc8d975f94ec5eeb86a4f61eae002472e083714e9375388dc36e8b5530fea874a2f7e604cabf8b503dd8152

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1368-0-0x0000000000450000-0x0000000000453000-memory.dmp

    Filesize

    12KB

  • memory/1368-1-0x0000000002220000-0x0000000002226000-memory.dmp

    Filesize

    24KB

  • memory/1368-2-0x0000000002220000-0x0000000002226000-memory.dmp

    Filesize

    24KB

  • memory/1368-3-0x0000000002240000-0x0000000002246000-memory.dmp

    Filesize

    24KB

  • memory/2152-18-0x00000000006C0000-0x00000000006C6000-memory.dmp

    Filesize

    24KB

  • memory/2152-24-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB

  • memory/2152-25-0x0000000000560000-0x0000000000566000-memory.dmp

    Filesize

    24KB