Analysis

  • max time kernel
    16s
  • max time network
    17s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/08/2024, 17:31

General

  • Target

    OperaSetup.exe

  • Size

    2.0MB

  • MD5

    46d9a32ef057a3d92b1bd50603dcd71d

  • SHA1

    7d49c59c40e55508bbdfac1ce9092853616e36ad

  • SHA256

    6e5d09ba6174e6307630fbc0043e668ac7229f84d8f04c5a8decbcc2728f0aaa

  • SHA512

    e5c9cc90e60c74080220c1a2b4be9b484d29600c2b201b3d0d0d2e878bf260594723ff32a0f4f1cb87826e71e953445129d7ec97beb0443f1143c32055a71705

  • SSDEEP

    49152:kNEyYcQ78Kpjjxv6htWn1iTl0egZ3s0OSZsnh7f3kHMqL:SEP784oysWj3s0GhYMqL

Malware Config

Signatures

  • Downloads MZ/PE file
  • Executes dropped EXE 8 IoCs
  • Loads dropped DLL 9 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.

  • System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

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

  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\OperaSetup.exe
    "C:\Users\Admin\AppData\Local\Temp\OperaSetup.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3188
    • C:\Users\Admin\AppData\Local\Temp\7zS47CC1487\setup.exe
      C:\Users\Admin\AppData\Local\Temp\7zS47CC1487\setup.exe --server-tracking-blob=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
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Enumerates connected drives
      • System Location Discovery: System Language Discovery
      • Modifies system certificate store
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2552
      • C:\Users\Admin\AppData\Local\Temp\7zS47CC1487\setup.exe
        C:\Users\Admin\AppData\Local\Temp\7zS47CC1487\setup.exe --type=crashpad-handler /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Roaming\Opera Software\Opera Stable\Crash Reports" "--crash-count-file=C:\Users\Admin\AppData\Roaming\Opera Software\Opera Stable\crash_count.txt" --url=https://crashstats-collector.opera.com/collector/submit --annotation=channel=Stable --annotation=plat=Win32 --annotation=prod=OperaDesktop --annotation=ver=110.0.5130.49 --initial-client-data=0x32c,0x330,0x334,0x308,0x338,0x7440f308,0x7440f314,0x7440f320
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:324
      • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\setup.exe
        "C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\setup.exe" --version
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1700
      • C:\Users\Admin\AppData\Local\Temp\7zS47CC1487\setup.exe
        "C:\Users\Admin\AppData\Local\Temp\7zS47CC1487\setup.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" --profile-folder --language=en --singleprofile=0 --copyonly=0 --allusers=0 --setdefaultbrowser=1 --pintotaskbar=1 --pintostartmenu=1 --run-at-startup=1 --show-intro-overlay --server-tracking-data=server_tracking_data --initial-pid=2552 --package-dir-prefix="C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_20240814173117" --session-guid=5a90a94f-49fb-426a-adfb-7a5ac9923aa4 --server-tracking-blob=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 --desktopshortcut=1 --wait-for-package --initial-proc-handle=C409000000000000
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Enumerates connected drives
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3712
        • C:\Users\Admin\AppData\Local\Temp\7zS47CC1487\setup.exe
          C:\Users\Admin\AppData\Local\Temp\7zS47CC1487\setup.exe --type=crashpad-handler /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Roaming\Opera Software\Opera Stable\Crash Reports" "--crash-count-file=C:\Users\Admin\AppData\Roaming\Opera Software\Opera Stable\crash_count.txt" --url=https://crashstats-collector.opera.com/collector/submit --annotation=channel=Stable --annotation=plat=Win32 --annotation=prod=OperaDesktop --annotation=ver=110.0.5130.49 --initial-client-data=0x31c,0x320,0x324,0x2f8,0x328,0x71eff308,0x71eff314,0x71eff320
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • System Location Discovery: System Language Discovery
          PID:5092
      • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202408141731171\assistant\Assistant_112.0.5197.30_Setup.exe_sfx.exe
        "C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202408141731171\assistant\Assistant_112.0.5197.30_Setup.exe_sfx.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2232
      • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202408141731171\assistant\assistant_installer.exe
        "C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202408141731171\assistant\assistant_installer.exe" --version
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4388
        • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202408141731171\assistant\assistant_installer.exe
          "C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202408141731171\assistant\assistant_installer.exe" --type=crashpad-handler /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Roaming\Opera Software\Opera Stable\Crash Reports" "--crash-count-file=C:\Users\Admin\AppData\Roaming\Opera Software\Opera Stable\crash_count.txt" --url=https://crashstats-collector.opera.com/collector/submit --annotation=channel=Stable --annotation=plat=Win32 --annotation=prod=OperaDesktop --annotation=ver=112.0.5197.30 --initial-client-data=0x220,0x224,0x228,0x1fc,0x22c,0x298f40,0x298f4c,0x298f58
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • System Location Discovery: System Language Discovery
          PID:4556

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202408141731171\additional_file0.tmp

    Filesize

    2.6MB

    MD5

    1bf64fd766bd850bcf8e0ffa9093484b

    SHA1

    01524bb2c88b7066391da291ee474004a4904891

    SHA256

    58794b1bf4d84bd7566ee89fd8a8a4157dc70c598d229ec5101959f30b6f3491

    SHA512

    cdf2830edc5d4f30beae41591f3a1bcff820f75444d70338a4c6d36e10df43475f383a9f291b619a008452c53e0dddf65547f217386389000535d6d264854e7f

  • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202408141731171\assistant\assistant_installer.exe

    Filesize

    1.9MB

    MD5

    9afe96db501220cf42b262fdac954dc8

    SHA1

    d3471998f674b267256e72a30977a79abcd8fca9

    SHA256

    fc5608bf95bb02e889aa9be15abc5c066acd62ba07f886b323383e75909a2566

    SHA512

    ecff52ca7467e3948faa244c1fc7c3d4d1f1dbe74077d071b78147729a078cc6a676212e0606111edcf542d554045c4f5a4d502545b2f0a285cda6c5d0b69b27

  • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202408141731171\assistant\dbgcore.DLL

    Filesize

    166KB

    MD5

    e0274730d20eb9571d59f2da20d165a2

    SHA1

    b746aeca5f7cbee0de163309c9d207c94f9b8d64

    SHA256

    c5c4c6430bcfe6118a4f499c94afa460401e369dc548a24688532c95fd202ec5

    SHA512

    d95998b69e6c3d25037e12e038f2773960de2d18df1af0342fd805c7c349bd630a21d0e0fe7490baaf274e90781ebf6a2667e64593f9d91174d040bfe640bddf

  • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202408141731171\assistant\dbghelp.dll

    Filesize

    1.7MB

    MD5

    6e9976cc7b2def7a37106703e47626a5

    SHA1

    edcb4758f8ee56e9c6515f912d5024aeca9ead50

    SHA256

    fd8840fab4b61db4e9e09168e5b1b4f0e9bfea0a64482fd475ab63c712b92b9c

    SHA512

    27091e6ad001dac22897a295806925e02f693096d79667e587de74ca955ffb9b2773b22c83e306e7164862524e02ad028e68684c2ca7d9e4da1ff03787dd40ca

  • C:\Users\Admin\AppData\Local\Temp\7zS47CC1487\setup.exe

    Filesize

    5.2MB

    MD5

    8a30cb3105f33fd2e77e70ec8f12daf0

    SHA1

    90781a042276779d417be8874dc3367aab936736

    SHA256

    0ac24f79102aef4a0c06a950be7d2fc31586f0e50f54cf1365dd4ce3e372ff79

    SHA512

    5a70817c66d30fd04e442cfa496cb5998dd3298790a6f84a5ad0fb1c56181b7418a72d94eff7737486f010439c0a44a51de78d5247fa40f8bfa30fd9cae9a4be

  • C:\Users\Admin\AppData\Local\Temp\Opera_installer_2408141731167852552.dll

    Filesize

    4.7MB

    MD5

    dc8cdc6de7f763822efa2692b101ac72

    SHA1

    3dd471eb20cc5659f83a05f971c038ab54fede90

    SHA256

    3ad67f831ecd3a6a35b2eca2e8b64e072876bdfffff545de8442cac51722642f

    SHA512

    53a0ebe9548bb795c50054336235ec7b8ab4c96c3d546fde7b5611ad7ed252e04e089827eb6905194cfc215aacbffc7b4a3f8088c0d25f144bbd821a7a4d25c9

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

    Filesize

    40B

    MD5

    42e59254024d7440660628c6a2b7bdab

    SHA1

    47f070b95d9e60e9e355793e33acd8229dcd144d

    SHA256

    7edb08e6bc7d4e79a5396461f6037ff30b922805e7be603b8ae608bdb523a4f4

    SHA512

    5286f7d53ca6b094c0f71b171745444f000d0556a6d4cff7d0be9ab0f280edf32707a79af10a9cddf630199ed657c5cf0758e447a1269957e95a1fe1b42bb60f