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Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/08/2023, 18:14

General

  • Target

    905c2aefd17ab5dbc49974738ab36788_cryptolocker_JC.exe

  • Size

    76KB

  • MD5

    905c2aefd17ab5dbc49974738ab36788

  • SHA1

    b2a074e10db3ad461755cabec46e5b31e426ff23

  • SHA256

    c8ba0071df16f7ec9b5c5310753d2b33179e7f9298f1faf5331723a9c12187e7

  • SHA512

    800c266914648aacff58fb8785c305dbe3ead5243e0bfcc26089bc34fb2c6b476ecadda1f49f37ce56ef0e1e2182f8fffaec662260ad7274bc8d6776a2045d0b

  • SSDEEP

    1536:P8mnK6QFElP6n+gymddpMOtEvwDpjIHsalDSnUE:1nK6a+qdOOtEvwDpjP

Score
7/10
upx

Malware Config

Signatures

  • Executes dropped EXE 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 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\905c2aefd17ab5dbc49974738ab36788_cryptolocker_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\905c2aefd17ab5dbc49974738ab36788_cryptolocker_JC.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:744
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2776

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    76KB

    MD5

    501626c62005a61aa28ab744600e3b89

    SHA1

    6de98f93791f3daa908d570456ce5a7707194cf3

    SHA256

    7d52f4a6abaa903bfba70911a479fbefb167068e5ac4ab8c9deb6d970f49b747

    SHA512

    1a93feba9056399b8429224d901337f0b2d85f03f9fc938015e51ce992f60631dfd7a92499f917d7eb2efb452c2c4a76044b693731fbd20855665c343e01e1cc

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

    Filesize

    76KB

    MD5

    501626c62005a61aa28ab744600e3b89

    SHA1

    6de98f93791f3daa908d570456ce5a7707194cf3

    SHA256

    7d52f4a6abaa903bfba70911a479fbefb167068e5ac4ab8c9deb6d970f49b747

    SHA512

    1a93feba9056399b8429224d901337f0b2d85f03f9fc938015e51ce992f60631dfd7a92499f917d7eb2efb452c2c4a76044b693731fbd20855665c343e01e1cc

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

    Filesize

    76KB

    MD5

    501626c62005a61aa28ab744600e3b89

    SHA1

    6de98f93791f3daa908d570456ce5a7707194cf3

    SHA256

    7d52f4a6abaa903bfba70911a479fbefb167068e5ac4ab8c9deb6d970f49b747

    SHA512

    1a93feba9056399b8429224d901337f0b2d85f03f9fc938015e51ce992f60631dfd7a92499f917d7eb2efb452c2c4a76044b693731fbd20855665c343e01e1cc

  • memory/744-133-0x0000000000500000-0x000000000050F311-memory.dmp

    Filesize

    60KB

  • memory/744-134-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/744-135-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/744-136-0x00000000006C0000-0x00000000006C6000-memory.dmp

    Filesize

    24KB

  • memory/744-150-0x0000000000500000-0x000000000050F311-memory.dmp

    Filesize

    60KB

  • memory/2776-152-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/2776-153-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/2776-159-0x0000000000500000-0x000000000050F311-memory.dmp

    Filesize

    60KB