Analysis

  • max time kernel
    148s
  • 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
    09/08/2024, 00:43

General

  • Target

    a2812ef39a59c5b8ed927bc3ec11019d89b03c6b3bd145f83e6bbee869f35bdf.exe

  • Size

    3.1MB

  • MD5

    11be2158fcdc15b964ceea4eb9b82431

  • SHA1

    5656ed948bf3ef9373ef2e4067069bed57156c24

  • SHA256

    a2812ef39a59c5b8ed927bc3ec11019d89b03c6b3bd145f83e6bbee869f35bdf

  • SHA512

    2ec63df8cdc7dedf52f13ef417f4442c51745b99ae43e4a6b4c47d700bf2fcdaece015acc8c68a8dfda07a5281a132fccc531199514cd41694424dd6392b919c

  • SSDEEP

    49152:lNEyYYC1hqiJckG38dBFOhg5/6qF3rjb/h4CNcTCP8xphzSNtOSe+aS:TEP1y3+0hgh6u/ZcTCP8BzONaS

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\a2812ef39a59c5b8ed927bc3ec11019d89b03c6b3bd145f83e6bbee869f35bdf.exe
    "C:\Users\Admin\AppData\Local\Temp\a2812ef39a59c5b8ed927bc3ec11019d89b03c6b3bd145f83e6bbee869f35bdf.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:404
    • C:\Users\Admin\AppData\Local\Temp\7zS491746A7\setup.exe
      C:\Users\Admin\AppData\Local\Temp\7zS491746A7\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:4708
      • C:\Users\Admin\AppData\Local\Temp\7zS491746A7\setup.exe
        C:\Users\Admin\AppData\Local\Temp\7zS491746A7\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=111.0.5168.99 --initial-client-data=0x32c,0x330,0x334,0x300,0x338,0x740c1160,0x740c116c,0x740c1178
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3064
      • 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:2268
      • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202408090043231\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_202408090043231\assistant\Opera_GX_assistant_73.0.3856.382_Setup.exe_sfx.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2004
      • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202408090043231\assistant\assistant_installer.exe
        "C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202408090043231\assistant\assistant_installer.exe" --version
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3348
        • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202408090043231\assistant\assistant_installer.exe
          "C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202408090043231\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,0x270,0x274,0x248,0x278,0x444f48,0x444f58,0x444f64
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          PID:4524

Network

        MITRE ATT&CK Enterprise v15

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202408090043231\assistant\Opera_GX_assistant_73.0.3856.382_Setup.exe_sfx.exe

          Filesize

          1.4MB

          MD5

          e9a2209b61f4be34f25069a6e54affea

          SHA1

          6368b0a81608c701b06b97aeff194ce88fd0e3c0

          SHA256

          e950f17f4181009eeafa9f5306e8a9dfd26d88ca63b1838f44ff0efc738e7d1f

          SHA512

          59e46277ca79a43ed8b0a25b24eff013e251a75f90587e013b9c12851e5dd7283b6172f7d48583982f6a32069457778ee440025c1c754bf7bb6ce8ae1d2c3fc5

        • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202408090043231\assistant\assistant_installer.exe

          Filesize

          1.8MB

          MD5

          4c8fbed0044da34ad25f781c3d117a66

          SHA1

          8dd93340e3d09de993c3bc12db82680a8e69d653

          SHA256

          afe569ce9e4f71c23ba5f6e8fd32be62ac9538e397cde8f2ecbe46faa721242a

          SHA512

          a04e6fd052d2d63a0737c83702c66a9af834f9df8423666508c42b3e1d8384300239c9ddacdc31c1e85140eb1193bcfac209f218750b40342492ffce6e9da481

        • C:\Users\Admin\AppData\Local\Temp\7zS491746A7\setup.exe

          Filesize

          6.4MB

          MD5

          241331bede4cd250aeead156de3225c0

          SHA1

          4e6ebbfda62706203c7f3016d136560854841358

          SHA256

          b476f1c8521db36255a862af284f462eef77c4fd5233adb002137af7835f5e86

          SHA512

          9eb8f3970645315c73e80cea2af9364d8aa68d4e3383cdf21dd0393fc74857538639793e995a66b6bd58f086738981ffc364a06b23b129fab380d0e59532d712

        • C:\Users\Admin\AppData\Local\Temp\Opera_installer_2408090043228514708.dll

          Filesize

          5.9MB

          MD5

          4510a03cd9a85d34ad47ed84097ed4a4

          SHA1

          a1a761249bbbe8dffcb3fac37ed570c89e130379

          SHA256

          cafaa2ac106c340ca91acbbd483379cd3c2273d2cb795349db6b07c7272c0433

          SHA512

          95b4b9de8818e025608f7a77b3281e879bbaed5bbde6cfcbbd4bcb1b6c6cf09706b68061b7264d90c3374c2a0072f91afffc5b617fec12921407c72b63b2be62

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

          Filesize

          40B

          MD5

          4777110ebd1c55099af7822039ef6022

          SHA1

          79a48d7a3180222d50f6af615b47b88b7f3e6cdf

          SHA256

          583225e00933372e25db7576c4a0ca9e5ac99ebc2856fc688310caf1c9aaae44

          SHA512

          ef41b85adc5af3a2344e678528fe81823e1edaf37ff958bea5d43e9a30c45e14336b95b01f3ad037d934995968b8f7d39d961204b50354f131a43a458f21998c