Analysis

  • max time kernel
    55s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    08/02/2023, 03:32

General

  • Target

    OperaGXSetup.exe

  • Size

    3.4MB

  • MD5

    9fdd13383071613517f84abb6558f002

  • SHA1

    d77fe9375bfd755111f3688a67dfef8ae70e167c

  • SHA256

    353ee8dee221b9078c04612d4a671769954fe163a49f2aaf348feac0a98d3725

  • SHA512

    46bc9f429dd40e114f460de88a26a6420cbfc313c8e468e760d282aa038437fe0979f2a088b66d512ba1e7997d131100beab60abe8bcc54fb31171828dbb7a98

  • SSDEEP

    98304:QXm+RrQpoS/OINhIwQcqg8eLN2o3QDb96aLX61vP87/TAg1s6JXd+U:QXVE2IYc5ULX61vAltd+U

Score
8/10

Malware Config

Signatures

  • Downloads MZ/PE file
  • Executes dropped EXE 4 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.

  • UPX packed file 6 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Enumerates connected drives 3 TTPs 1 IoCs

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

  • Modifies system certificate store 2 TTPs 9 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 35 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\OperaGXSetup.exe
    "C:\Users\Admin\AppData\Local\Temp\OperaGXSetup.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Modifies system certificate store
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1620
    • C:\Users\Admin\AppData\Local\Temp\OperaGXSetup.exe
      C:\Users\Admin\AppData\Local\Temp\OperaGXSetup.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=94.0.4606.101 --initial-client-data=0x194,0x198,0x19c,0x168,0x1a0,0x74e7e660,0x74e7e670,0x74e7e67c
      2⤵
      • Loads dropped DLL
      PID:824
    • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\OperaGXSetup.exe
      "C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\OperaGXSetup.exe" --version
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:1060
    • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202302080432481\assistant\_sfx.exe
      "C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202302080432481\assistant\_sfx.exe"
      2⤵
      • Executes dropped EXE
      PID:1948
    • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202302080432481\assistant\assistant_installer.exe
      "C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202302080432481\assistant\assistant_installer.exe" --version
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1428
      • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202302080432481\assistant\assistant_installer.exe
        "C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202302080432481\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=0x12c,0x130,0x134,0x100,0x138,0xc94f48,0xc94f58,0xc94f64
        3⤵
        • Executes dropped EXE
        PID:1116

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

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

          Filesize

          3.4MB

          MD5

          9fdd13383071613517f84abb6558f002

          SHA1

          d77fe9375bfd755111f3688a67dfef8ae70e167c

          SHA256

          353ee8dee221b9078c04612d4a671769954fe163a49f2aaf348feac0a98d3725

          SHA512

          46bc9f429dd40e114f460de88a26a6420cbfc313c8e468e760d282aa038437fe0979f2a088b66d512ba1e7997d131100beab60abe8bcc54fb31171828dbb7a98

        • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202302080432481\assistant\_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_202302080432481\assistant\_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_202302080432481\assistant\assistant_installer.exe

          Filesize

          1.8MB

          MD5

          4c8fbed0044da34ad25f781c3d117a66

          SHA1

          8dd93340e3d09de993c3bc12db82680a8e69d653

          SHA256

          afe569ce9e4f71c23ba5f6e8fd32be62ac9538e397cde8f2ecbe46faa721242a

          SHA512

          a04e6fd052d2d63a0737c83702c66a9af834f9df8423666508c42b3e1d8384300239c9ddacdc31c1e85140eb1193bcfac209f218750b40342492ffce6e9da481

        • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202302080432481\assistant\assistant_installer.exe

          Filesize

          1.8MB

          MD5

          4c8fbed0044da34ad25f781c3d117a66

          SHA1

          8dd93340e3d09de993c3bc12db82680a8e69d653

          SHA256

          afe569ce9e4f71c23ba5f6e8fd32be62ac9538e397cde8f2ecbe46faa721242a

          SHA512

          a04e6fd052d2d63a0737c83702c66a9af834f9df8423666508c42b3e1d8384300239c9ddacdc31c1e85140eb1193bcfac209f218750b40342492ffce6e9da481

        • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202302080432481\assistant\assistant_installer.exe

          Filesize

          1.8MB

          MD5

          4c8fbed0044da34ad25f781c3d117a66

          SHA1

          8dd93340e3d09de993c3bc12db82680a8e69d653

          SHA256

          afe569ce9e4f71c23ba5f6e8fd32be62ac9538e397cde8f2ecbe46faa721242a

          SHA512

          a04e6fd052d2d63a0737c83702c66a9af834f9df8423666508c42b3e1d8384300239c9ddacdc31c1e85140eb1193bcfac209f218750b40342492ffce6e9da481

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

          Filesize

          40B

          MD5

          193378b5ca9d8fb51e5a06f36022142f

          SHA1

          109d1a24ee42ef2e1d02e08a03c35f1a0740939d

          SHA256

          07c7da89ab09df30c68261a58575210d49430799531c6d9271e136f428e7b6dd

          SHA512

          000a72a87305a080acd94f3bb69b4861811bde09e68481abebaa7d7622a30e631405e905795ea51e5611d0be34fce0c2f73631ad9e6b06b2e4ffa4820473b0b7

        • \Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\OperaGXSetup.exe

          Filesize

          3.4MB

          MD5

          9fdd13383071613517f84abb6558f002

          SHA1

          d77fe9375bfd755111f3688a67dfef8ae70e167c

          SHA256

          353ee8dee221b9078c04612d4a671769954fe163a49f2aaf348feac0a98d3725

          SHA512

          46bc9f429dd40e114f460de88a26a6420cbfc313c8e468e760d282aa038437fe0979f2a088b66d512ba1e7997d131100beab60abe8bcc54fb31171828dbb7a98

        • \Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202302080432481\assistant\_sfx.exe

          Filesize

          1.4MB

          MD5

          e9a2209b61f4be34f25069a6e54affea

          SHA1

          6368b0a81608c701b06b97aeff194ce88fd0e3c0

          SHA256

          e950f17f4181009eeafa9f5306e8a9dfd26d88ca63b1838f44ff0efc738e7d1f

          SHA512

          59e46277ca79a43ed8b0a25b24eff013e251a75f90587e013b9c12851e5dd7283b6172f7d48583982f6a32069457778ee440025c1c754bf7bb6ce8ae1d2c3fc5

        • \Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202302080432481\assistant\assistant_installer.exe

          Filesize

          1.8MB

          MD5

          4c8fbed0044da34ad25f781c3d117a66

          SHA1

          8dd93340e3d09de993c3bc12db82680a8e69d653

          SHA256

          afe569ce9e4f71c23ba5f6e8fd32be62ac9538e397cde8f2ecbe46faa721242a

          SHA512

          a04e6fd052d2d63a0737c83702c66a9af834f9df8423666508c42b3e1d8384300239c9ddacdc31c1e85140eb1193bcfac209f218750b40342492ffce6e9da481

        • \Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202302080432481\assistant\assistant_installer.exe

          Filesize

          1.8MB

          MD5

          4c8fbed0044da34ad25f781c3d117a66

          SHA1

          8dd93340e3d09de993c3bc12db82680a8e69d653

          SHA256

          afe569ce9e4f71c23ba5f6e8fd32be62ac9538e397cde8f2ecbe46faa721242a

          SHA512

          a04e6fd052d2d63a0737c83702c66a9af834f9df8423666508c42b3e1d8384300239c9ddacdc31c1e85140eb1193bcfac209f218750b40342492ffce6e9da481

        • \Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202302080432481\opera_package

          Filesize

          118.6MB

          MD5

          c5aa699470f9dae9611ab026f6d2603b

          SHA1

          e4d2ababfc9ecede8628b9d77608ac517fe58dea

          SHA256

          0cb80948ec80ef48403c70dede0f9a1ac8aadcf5eab9e7f698c238c3aabf4bf7

          SHA512

          c7e3c1484e96abdcaceb2eae6d80d9123abe5b0c8500087cde14ee9f2220f7d715a33dd44a605e227226694a2a9674cf82f6eb21708e6beabfdaf76845832718

        • \Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202302080432481\opera_package

          Filesize

          118.6MB

          MD5

          c5aa699470f9dae9611ab026f6d2603b

          SHA1

          e4d2ababfc9ecede8628b9d77608ac517fe58dea

          SHA256

          0cb80948ec80ef48403c70dede0f9a1ac8aadcf5eab9e7f698c238c3aabf4bf7

          SHA512

          c7e3c1484e96abdcaceb2eae6d80d9123abe5b0c8500087cde14ee9f2220f7d715a33dd44a605e227226694a2a9674cf82f6eb21708e6beabfdaf76845832718

        • \Users\Admin\AppData\Local\Temp\Opera_installer_2302080432467211620.dll

          Filesize

          5.0MB

          MD5

          6921f49e33afb83fbd49a2d8f3483b12

          SHA1

          6c55ef2f27559d64367ca93e454682ec1b0c58b4

          SHA256

          561aa3291df19199e91ec3e4404d371e3e5b80eff1a0c881b55055d50346c256

          SHA512

          a92b940a8ec93e7b128d8fff9a195819b024072362c93a61b5260065cba623c66b08310bff13b6aed43b17a5728a1f70bf1e2ae4fe455184c029dcea89318d66

        • \Users\Admin\AppData\Local\Temp\Opera_installer_230208043247279824.dll

          Filesize

          5.0MB

          MD5

          6921f49e33afb83fbd49a2d8f3483b12

          SHA1

          6c55ef2f27559d64367ca93e454682ec1b0c58b4

          SHA256

          561aa3291df19199e91ec3e4404d371e3e5b80eff1a0c881b55055d50346c256

          SHA512

          a92b940a8ec93e7b128d8fff9a195819b024072362c93a61b5260065cba623c66b08310bff13b6aed43b17a5728a1f70bf1e2ae4fe455184c029dcea89318d66

        • \Users\Admin\AppData\Local\Temp\Opera_installer_2302080432480311060.dll

          Filesize

          5.0MB

          MD5

          6921f49e33afb83fbd49a2d8f3483b12

          SHA1

          6c55ef2f27559d64367ca93e454682ec1b0c58b4

          SHA256

          561aa3291df19199e91ec3e4404d371e3e5b80eff1a0c881b55055d50346c256

          SHA512

          a92b940a8ec93e7b128d8fff9a195819b024072362c93a61b5260065cba623c66b08310bff13b6aed43b17a5728a1f70bf1e2ae4fe455184c029dcea89318d66

        • memory/824-64-0x0000000000400000-0x00000000009A8000-memory.dmp

          Filesize

          5.7MB

        • memory/1060-69-0x0000000000400000-0x00000000009A8000-memory.dmp

          Filesize

          5.7MB

        • memory/1060-66-0x0000000000400000-0x00000000009A8000-memory.dmp

          Filesize

          5.7MB

        • memory/1620-62-0x0000000000400000-0x00000000009A8000-memory.dmp

          Filesize

          5.7MB

        • memory/1620-70-0x0000000003540000-0x0000000003AE8000-memory.dmp

          Filesize

          5.7MB

        • memory/1620-65-0x0000000003540000-0x0000000003AE8000-memory.dmp

          Filesize

          5.7MB

        • memory/1620-63-0x00000000029C0000-0x0000000002F68000-memory.dmp

          Filesize

          5.7MB

        • memory/1620-55-0x0000000075D01000-0x0000000075D03000-memory.dmp

          Filesize

          8KB