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Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    08/04/2024, 20:29

General

  • Target

    2024-04-08_6678c103a8b17a22be879b5cc8db29fb_cryptolocker.exe

  • Size

    63KB

  • MD5

    6678c103a8b17a22be879b5cc8db29fb

  • SHA1

    0fecfd195045bafbb445c20503af1f79f72c4963

  • SHA256

    8efdb20ce0c634ec9e5423f63e509734144c1b38eebca767181b9aaa32fff7df

  • SHA512

    0a100f94d7e3f518469eb47630f6a5ff49cd0222170aacdcc4f3012b09710d1be9d62e0f78557337a51e9606e33ed7e6a090b4f26fb40c2e0b444762482ef54f

  • SSDEEP

    768:zQz7yVEhs9+syJP6ntOOtEvwDpjFelaB7yBEY9Su8F5mLZ5ScC:zj+soPSMOtEvwDpj4kpmeLmLC

Score
9/10
upx

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 5 IoCs
  • UPX dump on OEP (original entry point) 5 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 5 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\2024-04-08_6678c103a8b17a22be879b5cc8db29fb_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-08_6678c103a8b17a22be879b5cc8db29fb_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2220
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:2524

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    63KB

    MD5

    65ea4c16e75845b7ec39e757ba821e5a

    SHA1

    d27cd9568839b94f8de5097628db992af2aea413

    SHA256

    d20507c1b85589da22effef099d94bd8827abb18c2f68a4da459ce298a2d40d3

    SHA512

    c457077fc840c216d291e5fa62cf46442ab09dfa55481d05f97d9f13b69faaf600c0632fbb2aea131654574f743cd53d96665aac4775652397a30bb8b1e25d49

  • memory/2220-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2220-1-0x0000000000320000-0x0000000000326000-memory.dmp

    Filesize

    24KB

  • memory/2220-2-0x0000000000360000-0x0000000000366000-memory.dmp

    Filesize

    24KB

  • memory/2220-9-0x0000000000320000-0x0000000000326000-memory.dmp

    Filesize

    24KB

  • memory/2220-15-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2524-18-0x0000000000290000-0x0000000000296000-memory.dmp

    Filesize

    24KB

  • memory/2524-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2524-20-0x00000000001D0000-0x00000000001D6000-memory.dmp

    Filesize

    24KB

  • memory/2524-26-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB