Analysis

  • max time kernel
    147s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    29/05/2024, 15:46

General

  • Target

    2024-05-29_c8c8162a096279abc7df5c88b31fd72c_cryptolocker.exe

  • Size

    65KB

  • MD5

    c8c8162a096279abc7df5c88b31fd72c

  • SHA1

    e29a12445a5a23442c2bc2ff04cab44d620eefb8

  • SHA256

    2b7c9f45abdd956c02d5fd9beca255999faac5e83abcf53f6774bc992b639583

  • SHA512

    cc26cf89135b560081312d18624b2b1c9af00e0dc0eccba83f4da3dc4236cf225ad7949349dabd58fc0a3608c253438ccb2462af0b61bd8cf220c9c1754e741b

  • SSDEEP

    1536:P8mnK6QFElP6n+gymddpMOtEvwDpjY6UAXXc:1nK6a+qdOOtEvwDpjs

Score
9/10
upx

Malware Config

Signatures

  • Detection of CryptoLocker Variants 6 IoCs
  • Detection of Cryptolocker Samples 6 IoCs
  • UPX dump on OEP (original entry point) 6 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 6 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-05-29_c8c8162a096279abc7df5c88b31fd72c_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-29_c8c8162a096279abc7df5c88b31fd72c_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1684
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:1208

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\asih.exe

    Filesize

    66KB

    MD5

    503bd24f1a97db9b32f9a7cd85cea44e

    SHA1

    a1a85a39c5625167fc368740c0eb1e64fec0e80f

    SHA256

    4629857352d22a7ce37e8d61412b8a1f176e254957767fbf31ffd83ec9bdbe2b

    SHA512

    4e0a09d0deeae3b2ca8011a7011d9ccea5eb43caa56ec6108f4b0c283d210ed8141ab52c345e4ba3151cc877b0b366a5c10e8adabefdf614ea47d430f6692099

  • memory/1208-17-0x0000000000500000-0x000000000050F311-memory.dmp

    Filesize

    60KB

  • memory/1208-19-0x0000000000360000-0x0000000000366000-memory.dmp

    Filesize

    24KB

  • memory/1208-26-0x0000000000320000-0x0000000000326000-memory.dmp

    Filesize

    24KB

  • memory/1208-27-0x0000000000500000-0x000000000050F311-memory.dmp

    Filesize

    60KB

  • memory/1684-0-0x0000000000500000-0x000000000050F311-memory.dmp

    Filesize

    60KB

  • memory/1684-1-0x00000000002B0000-0x00000000002B6000-memory.dmp

    Filesize

    24KB

  • memory/1684-2-0x0000000000370000-0x0000000000376000-memory.dmp

    Filesize

    24KB

  • memory/1684-8-0x00000000002B0000-0x00000000002B6000-memory.dmp

    Filesize

    24KB

  • memory/1684-13-0x00000000004C0000-0x00000000004D0000-memory.dmp

    Filesize

    64KB

  • memory/1684-16-0x0000000000500000-0x000000000050F311-memory.dmp

    Filesize

    60KB