Analysis

  • max time kernel
    148s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-07-2024 16:14

General

  • Target

    zvgfd-main/OperaGXSetup.exe

  • Size

    5.7MB

  • MD5

    441310f56849af8b53ea48cc94ca3ddb

  • SHA1

    64fceb7e1097a27285cc843a4bffd10a42d95033

  • SHA256

    161d60e3b2cc2cd0248fea9a8869050095ee71ec7244734951b9af377cd765bf

  • SHA512

    2a9be6f43c5a6d5e77fecd1746942c8baf17aa0c22bf276ce9640ddb3899e1fbc58d67555f942946948487f1444edafff209c82d91894e37267f4fe2b596caf6

  • SSDEEP

    98304:m0NFy6666666666666666666666666666666x666666666666666fwwwwwwwwwwE:C75isWNadkX6dOoS0vyy9qldfA9b6JTz

Score
8/10

Malware Config

Signatures

  • Downloads MZ/PE file
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Enumerates connected drives 3 TTPs 2 IoCs

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

  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\zvgfd-main\OperaGXSetup.exe
    "C:\Users\Admin\AppData\Local\Temp\zvgfd-main\OperaGXSetup.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Modifies system certificate store
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2224
    • C:\Users\Admin\AppData\Local\Temp\zvgfd-main\OperaGXSetup.exe
      C:\Users\Admin\AppData\Local\Temp\zvgfd-main\OperaGXSetup.exe --type=crashpad-handler /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Roaming\Opera Software\Opera GX Stable\Crash Reports" "--crash-count-file=C:\Users\Admin\AppData\Roaming\Opera Software\Opera GX Stable\crash_count.txt" --url=https://crashstats-collector.opera.com/collector/submit --annotation=channel=Stable --annotation=plat=Win32 --annotation=prod=OperaDesktopGX --annotation=ver=109.0.5097.108 --initial-client-data=0x260,0x2ac,0x2b0,0x2a8,0x2b4,0x755442b8,0x755442c4,0x755442d0
      2⤵
      • Loads dropped DLL
      PID:1976
    • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\OperaGXSetup.exe
      "C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\OperaGXSetup.exe" --version
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:3580
    • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202407151616151\assistant\Opera_GX_assistant_73.0.3856.382_Setup.exe_sfx.exe
      "C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202407151616151\assistant\Opera_GX_assistant_73.0.3856.382_Setup.exe_sfx.exe"
      2⤵
      • Executes dropped EXE
      PID:4472
    • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202407151616151\assistant\assistant_installer.exe
      "C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202407151616151\assistant\assistant_installer.exe" --version
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:5068
      • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202407151616151\assistant\assistant_installer.exe
        "C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202407151616151\assistant\assistant_installer.exe" --type=crashpad-handler /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Roaming\Opera Software\Opera GX Stable\Crash Reports" "--crash-count-file=C:\Users\Admin\AppData\Roaming\Opera Software\Opera GX Stable\crash_count.txt" --url=https://crashstats-collector.opera.com/collector/submit --annotation=channel=Stable --annotation=plat=Win32 --annotation=prod=OperaDesktopGX --annotation=ver=73.0.3856.382 --initial-client-data=0x270,0x274,0x278,0x248,0x27c,0xcf4f48,0xcf4f58,0xcf4f64
        3⤵
        • Executes dropped EXE
        PID:4620

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\OperaGXSetup.exe

    Filesize

    5.7MB

    MD5

    441310f56849af8b53ea48cc94ca3ddb

    SHA1

    64fceb7e1097a27285cc843a4bffd10a42d95033

    SHA256

    161d60e3b2cc2cd0248fea9a8869050095ee71ec7244734951b9af377cd765bf

    SHA512

    2a9be6f43c5a6d5e77fecd1746942c8baf17aa0c22bf276ce9640ddb3899e1fbc58d67555f942946948487f1444edafff209c82d91894e37267f4fe2b596caf6

  • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202407151616151\additional_file0.tmp

    Filesize

    1.4MB

    MD5

    e9a2209b61f4be34f25069a6e54affea

    SHA1

    6368b0a81608c701b06b97aeff194ce88fd0e3c0

    SHA256

    e950f17f4181009eeafa9f5306e8a9dfd26d88ca63b1838f44ff0efc738e7d1f

    SHA512

    59e46277ca79a43ed8b0a25b24eff013e251a75f90587e013b9c12851e5dd7283b6172f7d48583982f6a32069457778ee440025c1c754bf7bb6ce8ae1d2c3fc5

  • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202407151616151\assistant\assistant_installer.exe

    Filesize

    1.8MB

    MD5

    4c8fbed0044da34ad25f781c3d117a66

    SHA1

    8dd93340e3d09de993c3bc12db82680a8e69d653

    SHA256

    afe569ce9e4f71c23ba5f6e8fd32be62ac9538e397cde8f2ecbe46faa721242a

    SHA512

    a04e6fd052d2d63a0737c83702c66a9af834f9df8423666508c42b3e1d8384300239c9ddacdc31c1e85140eb1193bcfac209f218750b40342492ffce6e9da481

  • C:\Users\Admin\AppData\Local\Temp\Opera_installer_2407151616143812224.dll

    Filesize

    5.2MB

    MD5

    f5f48b76552484d175d8fbc95b1ecfb0

    SHA1

    9720d008dcb0bf5e398506c2d158cc8b5a498e2a

    SHA256

    1c4f4930b75fe2211afb11862044a6ce8783db69bc0d5735480df6005b1b547e

    SHA512

    debc2970e1c9de9a7dc5a18357a6750823c7ca0a65230c9a26eef418918744b4dbf32fb2a9b757a60c1012070c88ff2c1b9e203572874ef2a5bbcba505743855

  • C:\Users\Admin\AppData\Roaming\Opera Software\Opera GX Stable\Crash Reports\settings.dat

    Filesize

    40B

    MD5

    ab78a3aab712836477b011cf48accccf

    SHA1

    801e4411df05696c8689caa087a7466e1abb4eb7

    SHA256

    166fd1fc8b9cf1032601b9e66e32df7578b7e33232d06263d19b9d7bc0fb0fb7

    SHA512

    e3ed466715d41b4ec299d64e3d16c49ce07abe47c3399481dfab17e462a79043041eabb2810c1ee4c9c7207be02aa7b3b338a68d909e3e73d85f14075a4d8d95