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Analysis

  • max time kernel
    149s
  • max time network
    172s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    07/01/2024, 12:13

General

  • Target

    2024-01-06_9a304cef97658f13556139beb5706d56_cryptolocker.exe

  • Size

    61KB

  • MD5

    9a304cef97658f13556139beb5706d56

  • SHA1

    84453165b01531a40fb673a00a04ec193c804a53

  • SHA256

    28c67d78a67eb0d400b501f4f41679bbcae73519eeb5c4d3d33d91c50cb34974

  • SHA512

    c2deccb7bd513fb0502e8e0f825a3c6396f58ff8190160f29c40c0a7b2c6f1b2977aa30684c6ecd9322bec2815c51a835d235ff77311a621d4e9e66f28ecf048

  • SSDEEP

    1536:P8mnK6QFElP6n+gymddpMOtEvwDpjY6UW:1nK6a+qdOOtEvwDpjX

Score
7/10
upx

Malware Config

Signatures

  • 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\2024-01-06_9a304cef97658f13556139beb5706d56_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-06_9a304cef97658f13556139beb5706d56_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2116
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2740

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    61KB

    MD5

    cc76c012ddaa2dd7c91b734ec122b88e

    SHA1

    c4e88848ffde38fc3a27611543eafe99d514830f

    SHA256

    44f299b6b7093c532a1beb98c82d09091c24a57f7d2f2f85807f90a1039c3459

    SHA512

    cdffb774c01cd5ff17222045df646a496ec442755cf67c94c2d3809e0000bc125bec4a9bdfb66d90f1cd42eafad281dd3a890ba192f042e5fe941f4b107a3a0f

  • memory/2116-0-0x0000000000500000-0x000000000050F311-memory.dmp

    Filesize

    60KB

  • memory/2116-1-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2116-2-0x00000000002F0000-0x00000000002F6000-memory.dmp

    Filesize

    24KB

  • memory/2116-7-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2116-12-0x0000000001E30000-0x0000000001E40000-memory.dmp

    Filesize

    64KB

  • memory/2116-15-0x0000000000500000-0x000000000050F311-memory.dmp

    Filesize

    60KB

  • memory/2740-17-0x0000000000500000-0x000000000050F311-memory.dmp

    Filesize

    60KB

  • memory/2740-19-0x00000000002B0000-0x00000000002B6000-memory.dmp

    Filesize

    24KB

  • memory/2740-23-0x0000000000280000-0x0000000000286000-memory.dmp

    Filesize

    24KB

  • memory/2740-27-0x0000000000500000-0x000000000050F311-memory.dmp

    Filesize

    60KB