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Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/09/2024, 18:56

General

  • Target

    2024-09-27_6cd9e5086e82f6b76f9fa7c7de04a8bb_cryptolocker.exe

  • Size

    40KB

  • MD5

    6cd9e5086e82f6b76f9fa7c7de04a8bb

  • SHA1

    099e9f25528ffdd8245d1ee0b1ca58c87afcb870

  • SHA256

    de4e1e6bae2691c9ade20752ec4b3d4013bad8271f15ce0465d3d4b4965c9a1e

  • SHA512

    325ffa6b4135ecd9762c1d5976eeaab509262e251f570c5a4838d27584f59830d02fbafb7217a74196e097b3082ca21d27ab0b5f6c682b0242ff982c5f514feb

  • SSDEEP

    768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITYaIdX:qDdFJy3QMOtEvwDpjjWMl7TdAX

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 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).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-27_6cd9e5086e82f6b76f9fa7c7de04a8bb_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-27_6cd9e5086e82f6b76f9fa7c7de04a8bb_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1724
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:5108

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    40KB

    MD5

    b5c38d30acb9cd617581db2e37569d41

    SHA1

    5131a71d9472f98714adbde41340a0e2dd573d87

    SHA256

    98563dde18fdb3beaf61ccd73a756d36d7c530e2ca76edc989c8514b75c42164

    SHA512

    bfbdeb21c0b9b881978ae8db50ff5704066bf21b622a8bd01a3ff863c735a821359abbf4cb0242151bd16ad850fd614956163b665aacd5c9bc7e7fd383346950

  • memory/1724-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/1724-1-0x0000000000670000-0x0000000000676000-memory.dmp

    Filesize

    24KB

  • memory/1724-2-0x0000000000670000-0x0000000000676000-memory.dmp

    Filesize

    24KB

  • memory/1724-3-0x0000000002080000-0x0000000002086000-memory.dmp

    Filesize

    24KB

  • memory/1724-20-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/5108-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/5108-21-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/5108-27-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/5108-28-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB