Analysis

  • max time kernel
    127s
  • max time network
    150s
  • 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, 21:55

General

  • Target

    6983381bc15faf277e2f0bea11f04d71c5094793b0fdf34bf41d2ba4325754c3.exe

  • Size

    3.1MB

  • MD5

    4d06d8dcae449f3ec5f0d8aa8e987a9d

  • SHA1

    931a19921e93d12a6705aedcf1d947543a3952ac

  • SHA256

    6983381bc15faf277e2f0bea11f04d71c5094793b0fdf34bf41d2ba4325754c3

  • SHA512

    06b0bc8270b7ff23ce64d78bab8315b26c065c7b36b6291830074a23e111635885abc5a95815dd809e883250596304a6d74985b90cdda061ed297c3c0737075f

  • SSDEEP

    98304:nAcRTd/kggQSwydThBmnXodHG+z92I0xkZV8zDzSC:zRTFkg3SwyhsXoRG+zAkZCzDz/

Malware Config

Signatures

  • Downloads MZ/PE file
  • Executes dropped EXE 6 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.

  • 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 6 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6983381bc15faf277e2f0bea11f04d71c5094793b0fdf34bf41d2ba4325754c3.exe
    "C:\Users\Admin\AppData\Local\Temp\6983381bc15faf277e2f0bea11f04d71c5094793b0fdf34bf41d2ba4325754c3.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3584
    • C:\Users\Admin\AppData\Local\Temp\7zS00EF1327\setup.exe
      C:\Users\Admin\AppData\Local\Temp\7zS00EF1327\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:2204
      • C:\Users\Admin\AppData\Local\Temp\7zS00EF1327\setup.exe
        C:\Users\Admin\AppData\Local\Temp\7zS00EF1327\setup.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=112.0.5197.104 --initial-client-data=0x324,0x328,0x32c,0x300,0x330,0x74c91b54,0x74c91b60,0x74c91b6c
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1584
      • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\setup.exe
        "C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\setup.exe" --version
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4948
      • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202408282155512\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_202408282155512\assistant\Opera_GX_assistant_73.0.3856.382_Setup.exe_sfx.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2996
      • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202408282155512\assistant\assistant_installer.exe
        "C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202408282155512\assistant\assistant_installer.exe" --version
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3736
        • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202408282155512\assistant\assistant_installer.exe
          "C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202408282155512\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,0x270,0x274,0x248,0x278,0xed4f48,0xed4f58,0xed4f64
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          PID:3280

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202408282155512\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_202408282155512\assistant\assistant_installer.exe

          Filesize

          1.8MB

          MD5

          4c8fbed0044da34ad25f781c3d117a66

          SHA1

          8dd93340e3d09de993c3bc12db82680a8e69d653

          SHA256

          afe569ce9e4f71c23ba5f6e8fd32be62ac9538e397cde8f2ecbe46faa721242a

          SHA512

          a04e6fd052d2d63a0737c83702c66a9af834f9df8423666508c42b3e1d8384300239c9ddacdc31c1e85140eb1193bcfac209f218750b40342492ffce6e9da481

        • C:\Users\Admin\AppData\Local\Temp\7zS00EF1327\setup.exe

          Filesize

          6.4MB

          MD5

          b4da1657d31832c9965d54c5037a3402

          SHA1

          c312863d621b0b5ec9ec930b1db73de3c95f7141

          SHA256

          563fcd4ca2678ddb6c1366c92aa4daa410d7eba73d68d9336fb967f732770c8d

          SHA512

          643d2ec57767443e0efcc580a0e5abe062375f34b936daa22aa24e20d837b84854de18f636dc0ca5d100b4309a456746d733a65f8d1ccb173fe590ab5bf99007

        • C:\Users\Admin\AppData\Local\Temp\Opera_installer_2408282155510692204.dll

          Filesize

          5.9MB

          MD5

          e730bd98eb4754f9c0abd490461fbf1d

          SHA1

          783ea46e2b4d9e48feda3f9839bfbff40d8cf3ae

          SHA256

          0129372834853db0b565c20cceb3781a021fd7893d44d045f2ae671477a6a92a

          SHA512

          579cd23108d9cec9ff29447f89b770ee9308b261968242bf8046a3e4ca01704a2cd40072b6814b18d5e0eaa413033eb369c7a65146b3126be14899b73f634167

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

          Filesize

          40B

          MD5

          c20e9ec1d2a795e4fab99a365a4a34c6

          SHA1

          d057c4815bee97eace9c99a11673bdd4f52db2e6

          SHA256

          d5817dcfa9064b1e8f5ba4569bb9198b603c6921777006ffb44810ddfb808833

          SHA512

          2c7f0e03c5bcee1eb785c6cd926cae71099c40dd39529b99b3a42728c0e9d88a8788f18de5609b43a06db22a56053f3a39a951ee9aa31cf40338889d73149a5a