Resubmissions

05-05-2024 11:18

240505-nenv5agd6v 7

05-05-2024 11:09

240505-m856tsgb6w 8

05-05-2024 10:56

240505-m1p5msfh3y 8

Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-05-2024 11:09

General

  • Target

    OperaGXSetupVirus.exe

  • Size

    5.7MB

  • MD5

    20b86d966c26d9c1014772f98db85cdf

  • SHA1

    3c698d2892a9dc2bc946aa1bd88b838885a444a0

  • SHA256

    489dcdec7adfb3514d19eb5a10feb4f7aad62194db4eb4310d137d91aeadcd95

  • SHA512

    85f844c39d8df4a1c8c195572b9e7edc223411004475bf760f8042f87d283d079370241e4bb99655e3f1a298646fa6c45d126d41f613764cd96c8800c48a0184

  • SSDEEP

    98304:40NFj6666666666666666666666666666666x666666666666666fwwwwwwwwwwS:finH+ee2CrXTAim9xb0lkyS6XD6FDtPR

Score
8/10

Malware Config

Signatures

  • Downloads MZ/PE file
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 5 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 4 IoCs

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

  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\OperaGXSetupVirus.exe
    "C:\Users\Admin\AppData\Local\Temp\OperaGXSetupVirus.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Modifies system certificate store
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3368
    • C:\Users\Admin\AppData\Local\Temp\OperaGXSetupVirus.exe
      C:\Users\Admin\AppData\Local\Temp\OperaGXSetupVirus.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=109.0.5097.70 --initial-client-data=0x2a0,0x2a4,0x2a8,0x27c,0x2ac,0x74f94208,0x74f94214,0x74f94220
      2⤵
      • Loads dropped DLL
      PID:744
    • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\OperaGXSetupVirus.exe
      "C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\OperaGXSetupVirus.exe" --version
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:1424
    • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202405051109341\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_202405051109341\assistant\Opera_GX_assistant_73.0.3856.382_Setup.exe_sfx.exe"
      2⤵
      • Executes dropped EXE
      PID:2944
    • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202405051109341\assistant\assistant_installer.exe
      "C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202405051109341\assistant\assistant_installer.exe" --version
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:2324
      • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202405051109341\assistant\assistant_installer.exe
        "C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202405051109341\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=0x26c,0x270,0x274,0x248,0x278,0x10f4f48,0x10f4f58,0x10f4f64
        3⤵
        • Executes dropped EXE
        PID:3596
    • C:\Users\Admin\AppData\Local\Temp\OperaGXSetupVirus.exe
      "C:\Users\Admin\AppData\Local\Temp\OperaGXSetupVirus.exe" --backend --install --import-browser-data=0 --enable-stats=1 --enable-installer-stats=1 --consent-given=1 --general-interests=1 --general-location=1 --personalized-content=1 --personalized-ads=1 --launchopera=1 --installfolder="C:\Users\Admin\AppData\Local\Programs\Opera GX" --profile-folder --language=en --singleprofile=0 --copyonly=0 --allusers=0 --setdefaultbrowser=1 --pintotaskbar=1 --pintostartmenu=1 --run-at-startup=1 --server-tracking-data=server_tracking_data --initial-pid=3368 --package-dir-prefix="C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_20240505110934" --session-guid=37374b6e-4ee8-4241-bcbf-145f35c15597 --server-tracking-blob=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 --desktopshortcut=1 --wait-for-package --initial-proc-handle=700A000000000000
      2⤵
      • Loads dropped DLL
      • Enumerates connected drives
      • Suspicious use of WriteProcessMemory
      PID:4892
      • C:\Users\Admin\AppData\Local\Temp\OperaGXSetupVirus.exe
        C:\Users\Admin\AppData\Local\Temp\OperaGXSetupVirus.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=109.0.5097.70 --initial-client-data=0x2ac,0x2b0,0x2b4,0x27c,0x2b8,0x72374208,0x72374214,0x72374220
        3⤵
        • Loads dropped DLL
        PID:2516

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    5.7MB

    MD5

    20b86d966c26d9c1014772f98db85cdf

    SHA1

    3c698d2892a9dc2bc946aa1bd88b838885a444a0

    SHA256

    489dcdec7adfb3514d19eb5a10feb4f7aad62194db4eb4310d137d91aeadcd95

    SHA512

    85f844c39d8df4a1c8c195572b9e7edc223411004475bf760f8042f87d283d079370241e4bb99655e3f1a298646fa6c45d126d41f613764cd96c8800c48a0184

  • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202405051109341\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_202405051109341\assistant\assistant_installer.exe

    Filesize

    1.8MB

    MD5

    4c8fbed0044da34ad25f781c3d117a66

    SHA1

    8dd93340e3d09de993c3bc12db82680a8e69d653

    SHA256

    afe569ce9e4f71c23ba5f6e8fd32be62ac9538e397cde8f2ecbe46faa721242a

    SHA512

    a04e6fd052d2d63a0737c83702c66a9af834f9df8423666508c42b3e1d8384300239c9ddacdc31c1e85140eb1193bcfac209f218750b40342492ffce6e9da481

  • C:\Users\Admin\AppData\Local\Temp\Opera_installer_2405051109343863368.dll

    Filesize

    5.2MB

    MD5

    c44227f38d59c590106f011b17eb90d3

    SHA1

    b99b310fc2249a7879290ca5d2ad915ef588e76f

    SHA256

    c0a24436f26dc0d4a4be90cc7c75343039f02ff058ca00da06399da839968b94

    SHA512

    0edc91a06511cedabee7587401f69fccb3ade9747e1855c850806c2f0fef4402ed412dc1c68d03a70b317ee6314fa446d8541e831dbe24cabfafda17aa1b61be

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

    Filesize

    40B

    MD5

    b5ad9e59eaff0853270c847d500635c7

    SHA1

    bf5df4ecdfdb20bcbfeb0bda979b8f8f16ccb193

    SHA256

    123471348a32b70ef0225fdab6e709d6a936bb80b4053fd4652d08d93d98280d

    SHA512

    22e57a6b81e1f2a132728dd369908688a6eed648d55a81f9defbc97c3e6cd728747b69f21833d29f03c5253ab5f2018a91e20e2f57d9ec41e2b499c62680b6a2