Analysis

  • max time kernel
    144s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/08/2024, 20:55

General

  • Target

    3d566e7e6f690e54f890b32dff2ce52c400676bbb650d62cc9cb6dd1e897c799.exe

  • Size

    2.0MB

  • MD5

    2e5f0537cd741cb3b7d9c1de40dc6c50

  • SHA1

    5c1168252c9a01eac62e42b7e38e5a2cb423a380

  • SHA256

    3d566e7e6f690e54f890b32dff2ce52c400676bbb650d62cc9cb6dd1e897c799

  • SHA512

    f30bee02505a909db43a4dd3fa07513237b052fca73c0d1b65f677dc86ffdd71bf46325a28da4d15eb393aac9878dfa63738bba674172110a871f9054f0e95b8

  • SSDEEP

    49152:ZVAbwUQUFD1VR+zbTPDyoW53zJJfvRCYd60p9e9bldMi:PACQZGbo1HRCYd6b9x+

Malware Config

Signatures

  • Downloads MZ/PE file
  • Executes dropped EXE 6 IoCs
  • Loads dropped DLL 7 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.

  • System Location Discovery: System Language Discovery 1 TTPs 7 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 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3d566e7e6f690e54f890b32dff2ce52c400676bbb650d62cc9cb6dd1e897c799.exe
    "C:\Users\Admin\AppData\Local\Temp\3d566e7e6f690e54f890b32dff2ce52c400676bbb650d62cc9cb6dd1e897c799.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2864
    • C:\Users\Admin\AppData\Local\Temp\7zS03BCD797\setup.exe
      C:\Users\Admin\AppData\Local\Temp\7zS03BCD797\setup.exe
      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:3172
      • C:\Users\Admin\AppData\Local\Temp\7zS03BCD797\setup.exe
        C:\Users\Admin\AppData\Local\Temp\7zS03BCD797\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-2.opera.com/ --annotation=channel=Stable --annotation=plat=Win32 --annotation=prod=OperaDesktop --annotation=ver=113.0.5230.32 --initial-client-data=0x330,0x334,0x338,0x32c,0x33c,0x742fae8c,0x742fae98,0x742faea4
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4580
      • 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:4748
      • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202408282055501\assistant\Assistant_113.0.5230.31_Setup.exe_sfx.exe
        "C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202408282055501\assistant\Assistant_113.0.5230.31_Setup.exe_sfx.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:1208
      • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202408282055501\assistant\assistant_installer.exe
        "C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202408282055501\assistant\assistant_installer.exe" --version
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:444
        • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202408282055501\assistant\assistant_installer.exe
          "C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202408282055501\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-2.opera.com/ --annotation=channel=Stable --annotation=plat=Win32 --annotation=prod=OperaDesktop --annotation=ver=113.0.5230.31 --initial-client-data=0x220,0x224,0x228,0x1fc,0x22c,0x202c48,0x202c54,0x202c60
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • System Location Discovery: System Language Discovery
          PID:1536

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_202408282055501\additional_file0.tmp

          Filesize

          2.6MB

          MD5

          0995a010e2f8b866c6abca90fa49130f

          SHA1

          f282871f9d6333f5bcc738062613c44567a58dc0

          SHA256

          74d4c26b0ee35a7431944e51aaf5ec4ab3338b6776bf44bdfdbc1e201b4fea76

          SHA512

          b98e4bd252a9bdb11a7f15c795910daabdbe8e0ba0fa86a5ee6f8167ff66a9b67790c51f700666239781ad46241926590588b6831d16e5057dcbfebe37c3ae6b

        • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202408282055501\assistant\assistant_installer.exe

          Filesize

          1.9MB

          MD5

          1d980ac7aa07def69627a334168853f9

          SHA1

          c4b6a91eb61eb1a946b922ceef9aea86dde79eb5

          SHA256

          a08d4c13a57600c280d10aa2d0c5c13352638b6ac38651aa908af1c0ec351807

          SHA512

          e8f7afb5299d627d67f6656f71006f60c1dbaa535175ff935d2934197e2ed5faca0f9d64897695965deeeea7612a4229bf117a8243a3b5de902a001d4e91797b

        • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202408282055501\assistant\dbgcore.DLL

          Filesize

          166KB

          MD5

          98d373f7e891c8282b7a163880ffff55

          SHA1

          a84b5607aebd38833a96ee46b33f2d1b748e6ea0

          SHA256

          67bce323f46300c83866e02b1a3923b93834e30741999b965b351531073e8f2b

          SHA512

          b417629c5276ed942578273af5d2de4ab35fdb1cec102b47999b0b54d50c98d0ec36e8fca01db8c6f9fc4dc6aa130fef916fe07d131586c84f4a75bb589bb927

        • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202408282055501\assistant\dbghelp.dll

          Filesize

          1.7MB

          MD5

          49c70bed12c523235e2e154326b1a8f0

          SHA1

          4a011c6909ea9c08357dd4bebdd62f8b3bfab8dd

          SHA256

          27251f799e2d950c561fda99c07ff49553c1d538ccd544bcd1ee12820eed5cd5

          SHA512

          1553f9ddbb95603d82c01668320a128766ba8b039ee127f86a2008de222e9390b4d8b7153443444790c946b40742b85625fbc422e81073a353e9e434cc56eba3

        • C:\Users\Admin\AppData\Local\Temp\7zS03BCD797\setup.exe

          Filesize

          5.1MB

          MD5

          96be1b5fb15ec0912b8de6133d283180

          SHA1

          86d5f8af9018f27045389a48a66dffa7e1f8daf1

          SHA256

          04eead61515be0515643281aa8f29809facddd419c5bc06450d031d64e60461c

          SHA512

          c649720a6ac4409b32663f9987aca971e1475b7e30c2b7c2c31467a1214228f8d93f154580b0436933f86f998e8079d0df7e2f67b20adfa2aaaaff075a16ed32

        • C:\Users\Admin\AppData\Local\Temp\Opera_installer_2408282055498463172.dll

          Filesize

          4.6MB

          MD5

          b84992e5212817c964aa64b35dbf0ac6

          SHA1

          9361bf7b334f06ee3b3fd0770bf8dea0c2518146

          SHA256

          a3a7dab81491b07cda3d6c5d8ed1655c9b39c6db01a532d7d429b2f0aece3fc8

          SHA512

          9b61ab193514505c64fdad8b7457bec96ae7af1835a16d60f781e1240d29f20fa72479d395e3ff45f42197ffc82e96eac107f9d19ef3274efaddd71ee66ba2a4

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

          Filesize

          40B

          MD5

          93f6697f85f9f306f49e79ae87390a27

          SHA1

          fc2032614c8a26379f2386aa59e2132f4c3f9ca5

          SHA256

          1b12447919ac8259ffa05c5ef4e42d0cf882bf6b686e6f15ed8cbe63dedbacc1

          SHA512

          433a5887b6844c1e858397943c25f27f4e83132e475749c73fd901ec5021f7dd470ab49b40a627b444e79e59a9c306f58f7ea48b3c06bef0bbc77ae7e8e060fb