Analysis

  • max time kernel
    150s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-06-2023 17:58

General

  • Target

    OperaGXSetup (2).exe

  • Size

    3.3MB

  • MD5

    b605b99fcf89710704b0265634a4dee9

  • SHA1

    4a9d8d5b7cb092fd5183e5d0c24ecf9a26b6c05a

  • SHA256

    c1c74df2e1c1e8122ebe4835ef8430d7f41c30b803a3b1ba108d6bf68c39e208

  • SHA512

    30ddf498d8fed013ff30a4c3d83acad8a8c4ca347ac30622e29d2bbb77057637062e8872b4ae8e5a2887e62ff17f896ec6db81a47e06271b2c372f8ff32dcefb

  • SSDEEP

    98304:/ttVrx+N00DYwgy0OJsq1tqdM/NnOHdHlM3MSq6LE1azr3l0tXcN5XdmRY:/t/Vcbx6qvRolXSqZptuY+

Score
8/10

Malware Config

Signatures

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

  • UPX packed file 4 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 13 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\OperaGXSetup (2).exe
    "C:\Users\Admin\AppData\Local\Temp\OperaGXSetup (2).exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Modifies system certificate store
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:5032
    • C:\Users\Admin\AppData\Local\Temp\OperaGXSetup (2).exe
      "C:\Users\Admin\AppData\Local\Temp\OperaGXSetup (2).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=98.0.4759.82 --initial-client-data=0x2f4,0x2f8,0x2fc,0x2d0,0x300,0x74d833a8,0x74d833b8,0x74d833c4
      2⤵
      • Loads dropped DLL
      PID:4616
    • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\OperaGXSetup (2).exe
      "C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\OperaGXSetup (2).exe" --version
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:4940
    • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202306121759141\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_202306121759141\assistant\Opera_GX_assistant_73.0.3856.382_Setup.exe_sfx.exe"
      2⤵
      • Executes dropped EXE
      PID:4516
    • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202306121759141\assistant\assistant_installer.exe
      "C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202306121759141\assistant\assistant_installer.exe" --version
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:3196
      • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202306121759141\assistant\assistant_installer.exe
        "C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202306121759141\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
        3⤵
        • Executes dropped EXE
        PID:5020

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 (2).exe

    Filesize

    3.3MB

    MD5

    b605b99fcf89710704b0265634a4dee9

    SHA1

    4a9d8d5b7cb092fd5183e5d0c24ecf9a26b6c05a

    SHA256

    c1c74df2e1c1e8122ebe4835ef8430d7f41c30b803a3b1ba108d6bf68c39e208

    SHA512

    30ddf498d8fed013ff30a4c3d83acad8a8c4ca347ac30622e29d2bbb77057637062e8872b4ae8e5a2887e62ff17f896ec6db81a47e06271b2c372f8ff32dcefb

  • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202306121759141\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_202306121759141\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_202306121759141\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_202306121759141\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_202306121759141\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_202306121759141\opera_package

    Filesize

    121.8MB

    MD5

    37a9041e1b777dcfbee3435dc564910a

    SHA1

    5e22cdf74ecd4965e994fe358bed22d7f1067494

    SHA256

    f73ef98abafb35a37452e5ca79e82b3963b3ed74e3c4fe37d5f84b7a67c13be0

    SHA512

    56ea03c847416c57988514ed6415f2f6d1f931e27313f73e9192fa359b74f7c6611746f8825f1247492fa231b0e4cb3d81e1f359f0aec7a9fe2d78ff60525ba9

  • C:\Users\Admin\AppData\Local\Temp\Opera_installer_2306121759132455032.dll

    Filesize

    5.1MB

    MD5

    c3e5f2d9a8fc5032af219eb2e07cd4a4

    SHA1

    cbcfc5bf227fd7005a2856df3549fe10f8f0bd86

    SHA256

    bf7bcd1233ce920b4536e3a43f13616eb5c6487a952c379d9a4e4d3791ee2bda

    SHA512

    fbe331904026def43da535209acb56499630bbc0226ceeea7d5146e582634000f9f99d43816050c0b1461572ef182a0fe06273d81bdf2869d7666288486d8421

  • C:\Users\Admin\AppData\Local\Temp\Opera_installer_2306121759139644616.dll

    Filesize

    5.1MB

    MD5

    c3e5f2d9a8fc5032af219eb2e07cd4a4

    SHA1

    cbcfc5bf227fd7005a2856df3549fe10f8f0bd86

    SHA256

    bf7bcd1233ce920b4536e3a43f13616eb5c6487a952c379d9a4e4d3791ee2bda

    SHA512

    fbe331904026def43da535209acb56499630bbc0226ceeea7d5146e582634000f9f99d43816050c0b1461572ef182a0fe06273d81bdf2869d7666288486d8421

  • C:\Users\Admin\AppData\Local\Temp\Opera_installer_2306121759144484940.dll

    Filesize

    5.1MB

    MD5

    c3e5f2d9a8fc5032af219eb2e07cd4a4

    SHA1

    cbcfc5bf227fd7005a2856df3549fe10f8f0bd86

    SHA256

    bf7bcd1233ce920b4536e3a43f13616eb5c6487a952c379d9a4e4d3791ee2bda

    SHA512

    fbe331904026def43da535209acb56499630bbc0226ceeea7d5146e582634000f9f99d43816050c0b1461572ef182a0fe06273d81bdf2869d7666288486d8421

  • C:\Users\Admin\AppData\Local\Temp\Opera_installer_2306121759144484940.dll

    Filesize

    5.1MB

    MD5

    c3e5f2d9a8fc5032af219eb2e07cd4a4

    SHA1

    cbcfc5bf227fd7005a2856df3549fe10f8f0bd86

    SHA256

    bf7bcd1233ce920b4536e3a43f13616eb5c6487a952c379d9a4e4d3791ee2bda

    SHA512

    fbe331904026def43da535209acb56499630bbc0226ceeea7d5146e582634000f9f99d43816050c0b1461572ef182a0fe06273d81bdf2869d7666288486d8421

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

    Filesize

    40B

    MD5

    9e1bd5b5416d49c4bd3c94e3bb01949e

    SHA1

    ce3a663ca8f7628f71beb5ce5abe87d27a10d943

    SHA256

    e012a7b5a405488774d5314a762a1d511de36500f4d2c87fdd8bc43b07c97549

    SHA512

    6fe0b1e7dd4561ccb0bd1bc447088a4afc7a7927c3e4dcf10415c0186e1f571fb6940bb4525fb500375088350ef783a8176158d9dbb46ff4d57c6f5121ae0664

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

    Filesize

    40B

    MD5

    9e1bd5b5416d49c4bd3c94e3bb01949e

    SHA1

    ce3a663ca8f7628f71beb5ce5abe87d27a10d943

    SHA256

    e012a7b5a405488774d5314a762a1d511de36500f4d2c87fdd8bc43b07c97549

    SHA512

    6fe0b1e7dd4561ccb0bd1bc447088a4afc7a7927c3e4dcf10415c0186e1f571fb6940bb4525fb500375088350ef783a8176158d9dbb46ff4d57c6f5121ae0664

  • memory/4616-146-0x0000000000020000-0x00000000005D5000-memory.dmp

    Filesize

    5.7MB

  • memory/4940-151-0x00000000004D0000-0x0000000000A85000-memory.dmp

    Filesize

    5.7MB

  • memory/5032-134-0x0000000000020000-0x00000000005D5000-memory.dmp

    Filesize

    5.7MB