Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • resource tags

    arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
  • submitted
    23-05-2024 00:25

General

  • Target

    2024-05-23_1690ece352791863707066ea1322b0ef_cryptolocker.exe

  • Size

    78KB

  • MD5

    1690ece352791863707066ea1322b0ef

  • SHA1

    53c4cefa2246096d781919c074d4749210983d6c

  • SHA256

    7c2c466cef69d0e146dc5e952b8f4fc5fe9ee96708ccc7c20106c10574844677

  • SHA512

    56afcebc5bd0c89aa6f3dd21343e54d5bd7fe101ddec55dc0b69557737f3e9a2f3a55311a14f007d5b173fed42f340cf275ab892e3a5ef40cb3e546598fd1a0a

  • SSDEEP

    1536:vj+jsMQMOtEvwDpj5HwYYTjipvF2hBfIuf6:vCjsIOtEvwDpj5H9YvQd22

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Detection of Cryptolocker Samples 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • 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\2024-05-23_1690ece352791863707066ea1322b0ef_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-23_1690ece352791863707066ea1322b0ef_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1740
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:1676

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    78KB

    MD5

    14031465de66fbe4d707d89a5e9a861e

    SHA1

    fa9bfc488d7a4d78239e8e47deec2244fc8d5b92

    SHA256

    5f66cf0a5344132d2a1559f6ba7f5063bd948dacd48395354ec1485ba8101017

    SHA512

    9f922db62d762df645156b720cbf9f1c1aa5a18fd9adf89a87ca454eb4058d6a2a102fed642c8a883de576466fba1736aef865a31d7fa806c06f80e7408d85ef

  • memory/1676-15-0x0000000000380000-0x0000000000386000-memory.dmp

    Filesize

    24KB

  • memory/1676-22-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/1740-0-0x0000000000320000-0x0000000000326000-memory.dmp

    Filesize

    24KB

  • memory/1740-8-0x0000000000320000-0x0000000000326000-memory.dmp

    Filesize

    24KB

  • memory/1740-1-0x00000000003A0000-0x00000000003A6000-memory.dmp

    Filesize

    24KB