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Analysis

  • max time kernel
    147s
  • max time network
    115s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/10/2024, 00:26

General

  • Target

    8dbbe9797469ff1c3cee8d3e4f2aa83564df925249a11f51466d30e4198681f3.exe

  • Size

    3.5MB

  • MD5

    9cf6a80022f22bcc2994fda5f6020620

  • SHA1

    0f9af45d5db698b43881d4020371255502cca998

  • SHA256

    8dbbe9797469ff1c3cee8d3e4f2aa83564df925249a11f51466d30e4198681f3

  • SHA512

    f9e0ce84dc9b910382d252fb2725d76f549fad7dfe64e4ea30c775d9c56417edee00b790c918f9a3ec0dc76c0091af93e051360b007a916b76adceee86252391

  • SSDEEP

    49152:9RthomUdQ8h7D9S54+upeapeApIDn0apLKkLJU9nU2foKhA4vSWidGHp+NDGQUzS:GDOLv/LK3BDhtvS0Hpe4zbpaAKL

Malware Config

Signatures

  • Renames multiple (317) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in System32 directory 64 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 64 IoCs
  • 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 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8dbbe9797469ff1c3cee8d3e4f2aa83564df925249a11f51466d30e4198681f3.exe
    "C:\Users\Admin\AppData\Local\Temp\8dbbe9797469ff1c3cee8d3e4f2aa83564df925249a11f51466d30e4198681f3.exe"
    1⤵
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4784
    • C:\Windows\SysWOW64\sysx32.exe
      C:\Windows\system32\sysx32.exe /scan
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      PID:1076
    • C:\Users\Admin\AppData\Local\Temp\_8dbbe9797469ff1c3cee8d3e4f2aa83564df925249a11f51466d30e4198681f3.exe
      C:\Users\Admin\AppData\Local\Temp\_8dbbe9797469ff1c3cee8d3e4f2aa83564df925249a11f51466d30e4198681f3.exe
      2⤵
      • Executes dropped EXE
      PID:3980

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files\7-Zip\7z.exe

    Filesize

    3.5MB

    MD5

    c103276721c18b7d7af4c7fc04147331

    SHA1

    c76ec6162e9e56b0004f925699a8ffadf81b49b4

    SHA256

    ddbc2f91b2c63e5cfef63a465dff344ed4144db2585acca94cddd2623dc121fc

    SHA512

    175f29b9dc0a79b5bde50a1c57f76000cfa4f8f44ca0a4a8107186c1b7d8445669f124a7b915473098d778f246e27177315850bcf18b277b0ed1943b946817ed

  • C:\Users\Admin\AppData\Local\Temp\_8dbbe9797469ff1c3cee8d3e4f2aa83564df925249a11f51466d30e4198681f3.exe

    Filesize

    3.5MB

    MD5

    fb5e34a2ea241d01c85eca0665a40e5e

    SHA1

    afbe0ae677d65a01926ab51bb9934295d57588c0

    SHA256

    149f53bc41ce766b0a74af98bbd54e07183d74ec032ff79a75cf78d6a4d8ef17

    SHA512

    023d8551dd11ffc456d97e8af241927ebaf56dec2ad14e8617075e86da6f3ef622d53770bd3ce3d7b8547474ac291268ccd47d592355140ef7c24c267ea0d978

  • C:\Windows\SysWOW64\sysx32.exe

    Filesize

    3.5MB

    MD5

    9cf6a80022f22bcc2994fda5f6020620

    SHA1

    0f9af45d5db698b43881d4020371255502cca998

    SHA256

    8dbbe9797469ff1c3cee8d3e4f2aa83564df925249a11f51466d30e4198681f3

    SHA512

    f9e0ce84dc9b910382d252fb2725d76f549fad7dfe64e4ea30c775d9c56417edee00b790c918f9a3ec0dc76c0091af93e051360b007a916b76adceee86252391

  • memory/1076-1015-0x0000000000400000-0x0000000000411000-memory.dmp

    Filesize

    68KB

  • memory/1076-1018-0x0000000000400000-0x0000000000411000-memory.dmp

    Filesize

    68KB

  • memory/1076-2690-0x0000000000400000-0x0000000000411000-memory.dmp

    Filesize

    68KB

  • memory/1076-2691-0x0000000000400000-0x0000000000411000-memory.dmp

    Filesize

    68KB

  • memory/1076-2692-0x0000000000400000-0x0000000000411000-memory.dmp

    Filesize

    68KB

  • memory/1076-2693-0x0000000000400000-0x0000000000411000-memory.dmp

    Filesize

    68KB

  • memory/4784-0-0x0000000000400000-0x0000000000411000-memory.dmp

    Filesize

    68KB

  • memory/4784-11-0x0000000000400000-0x0000000000411000-memory.dmp

    Filesize

    68KB