Analysis

  • max time kernel
    120s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/11/2024, 20:08

General

  • Target
    a588f9f0394db2a3e2d0246fd026d83ddd507cc713de65e2a66d64880fc0ae63N.exe
  • Size 2.6MB
  • Sample241108-ywp5mayfpn
  • SHA256 a588f9f0394db2a3e2d0246fd026d83ddd507cc713de65e2a66d64880fc0ae63
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Drops startup file 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a588f9f0394db2a3e2d0246fd026d83ddd507cc713de65e2a66d64880fc0ae63N.exe
    "C:\Users\Admin\AppData\Local\Temp\a588f9f0394db2a3e2d0246fd026d83ddd507cc713de65e2a66d64880fc0ae63N.exe"
    1⤵
    • Drops startup file
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:320
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sysdevbod.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sysdevbod.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:3100
    • C:\FilesLL\xoptisys.exe
      C:\FilesLL\xoptisys.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:4076

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        xoptisys.exe

        • Path C:\FilesLL\xoptisys.exe
        • Size 68KB
        • SHA256 01214b0e0db7416edfdb710f5fda30c958ff443ca96d769b1b8176d7ca52943d
        • MD5 SHA1 SHA512 SSDEEP

        xoptisys.exe

        • Path C:\FilesLL\xoptisys.exe
        • Size 2.6MB
        • SHA256 2db3c07487ca1d55a319655fc3f55d6ed3f579c6334759d0251aacd3720583ad
        • MD5 SHA1 SHA512 SSDEEP

        253086396416_10.0_Admin.ini

        • Path C:\Users\Admin\253086396416_10.0_Admin.ini
        • Size 204B
        • SHA256 5cca0c9f74cf3e6787753d8414d7c9ca2c3504798971ccfa58f1c8f2300b39f0
        • MD5 SHA1 SHA512

        253086396416_10.0_Admin.ini

        • Path C:\Users\Admin\253086396416_10.0_Admin.ini
        • Size 172B
        • SHA256 1fd0a33856103347398af0a8b3edb4afae664378c1a153001762b37415d48ac0
        • MD5 SHA1 SHA512

        sysdevbod.exe

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sysdevbod.exe
        • Size 2.6MB
        • SHA256 62f8bac3c4c07c218d6fd2de8252f8cb5166e76eac231f4a7c0c29c03d120594
        • MD5 SHA1 SHA512 SSDEEP

        optidevec.exe

        • Path C:\Vid7I\optidevec.exe
        • Size 2.6MB
        • SHA256 9b4669c8671fd4bda748f56949494ea1b4c1af91ed069d5fd15f0eb86440fdb2
        • MD5 SHA1 SHA512 SSDEEP

        optidevec.exe

        • Path C:\Vid7I\optidevec.exe
        • Size 2.6MB
        • SHA256 4f80710e4e4dd107210d47450bd286fd7595aab54440b8af2900348cadfd9570
        • MD5 SHA1 SHA512 SSDEEP