Analysis

  • max time kernel
    149s
  • max time network
    155s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    18-02-2024 12:24

General

  • Target

    2024-02-18_0a168fdd9ddd32b44464e504f9658269_cryptolocker.exe

  • Size

    53KB

  • MD5

    0a168fdd9ddd32b44464e504f9658269

  • SHA1

    2fe998a287ee68899895814e889f53580516d5e7

  • SHA256

    2c446cd16476eb13f48107361897393e7aa50387ec39c0d9f48a85257a0a867d

  • SHA512

    3c90556d7128bec8d730dd9f6fa98ef47ed2bc468c02d327faf0ba64df74f2fff1eb04eea4ea76dd39d26d53a89e372b67d0cae5778c870405be4995a648f180

  • SSDEEP

    768:bIDOw9UiaCHfjnE0Sfa7ilR0p9u6p4ICNBCXK9XbTb8I:bIDOw9a0DwitDZzcTJ

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 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\2024-02-18_0a168fdd9ddd32b44464e504f9658269_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-18_0a168fdd9ddd32b44464e504f9658269_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2084
    • C:\Users\Admin\AppData\Local\Temp\lossy.exe
      "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
      2⤵
      • Executes dropped EXE
      PID:3060

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    53KB

    MD5

    65614c42a06c280d490940c76ed47335

    SHA1

    7ee5eb9194895a0cbe608927b62c3e340756fbf1

    SHA256

    73703db978d34940e111c2b48d2ec2e60b24bd447060f240bfbbcddb8cb4b6f1

    SHA512

    9ef823c4969c98625697972e071ab362dcbcac01abb9baf207c8cc69d1a1fa62c07d54f11f9efe94b80d3c0c7eeeda4dcf7ddc5d1ff7d09cf585baa1c1eb0038

  • memory/2084-0-0x00000000005C0000-0x00000000005C6000-memory.dmp

    Filesize

    24KB

  • memory/2084-1-0x00000000005C0000-0x00000000005C6000-memory.dmp

    Filesize

    24KB

  • memory/2084-2-0x00000000005F0000-0x00000000005F6000-memory.dmp

    Filesize

    24KB

  • memory/3060-16-0x0000000000290000-0x0000000000296000-memory.dmp

    Filesize

    24KB

  • memory/3060-15-0x00000000001E0000-0x00000000001E6000-memory.dmp

    Filesize

    24KB