Analysis

  • max time kernel
    52s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    02/02/2023, 17:34

General

  • Target

    OperaGXSetup.exe

  • Size

    3.4MB

  • MD5

    cac6793e35b053221818a214fe5ef365

  • SHA1

    82aa7af50e41269850ba35306c0bb3a5bec77a9c

  • SHA256

    a6e27d08d3afafd86b62273c2ab30c8ca59a0d7b122ed6b6a50a860b5b11ca74

  • SHA512

    137ffa623b300a99df9ab602979766ce4dc1dc53ea7f53549147fbc1696db6436dfe74193ccb6c5fab9b9e04e7006411ffcf428defb951e4219448b35bbf63c8

  • SSDEEP

    98304:4CQCHKWku5EgWanSVOiNa5isQaY4u5R7/tTixMgGBQOr3hbJoZm0oceqHFk8puAV:4CQCH9pC6p5isQp4Utzj3hbJo1o+HFkO

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 5 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 12 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:1728
    • 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=94.0.4606.79 --initial-client-data=0x194,0x198,0x19c,0x168,0x1a0,0x748ee660,0x748ee670,0x748ee67c
      2⤵
      • Loads dropped DLL
      PID:952
    • 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:516
    • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202302021834461\assistant\_sfx.exe
      "C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202302021834461\assistant\_sfx.exe"
      2⤵
      • Executes dropped EXE
      PID:1628
    • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202302021834461\assistant\assistant_installer.exe
      "C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202302021834461\assistant\assistant_installer.exe" --version
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1976
      • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202302021834461\assistant\assistant_installer.exe
        "C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202302021834461\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,0x130,0x134,0x100,0x138,0xda4f48,0xda4f58,0xda4f64
        3⤵
        • Executes dropped EXE
        PID:1968

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

    cac6793e35b053221818a214fe5ef365

    SHA1

    82aa7af50e41269850ba35306c0bb3a5bec77a9c

    SHA256

    a6e27d08d3afafd86b62273c2ab30c8ca59a0d7b122ed6b6a50a860b5b11ca74

    SHA512

    137ffa623b300a99df9ab602979766ce4dc1dc53ea7f53549147fbc1696db6436dfe74193ccb6c5fab9b9e04e7006411ffcf428defb951e4219448b35bbf63c8

  • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202302021834461\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_202302021834461\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_202302021834461\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_202302021834461\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_202302021834461\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

    30fca6d63e887fbcf4742f0bb102338c

    SHA1

    6e3ab743271b16f8b4e2aad1b58559611385a522

    SHA256

    6bc0f1b381ef286f9a73826305af33fba74e9f77b1eb509de8411a9110dc9aa8

    SHA512

    ea1e1756608aaed66c7c2858f8de72ff6dabfcd6d59064e435f60b19ae4964f0eb15f407128ed5e8b9a0fe75263c1554648e15e750c63f90261fca37f3a725c4

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

    Filesize

    3.4MB

    MD5

    cac6793e35b053221818a214fe5ef365

    SHA1

    82aa7af50e41269850ba35306c0bb3a5bec77a9c

    SHA256

    a6e27d08d3afafd86b62273c2ab30c8ca59a0d7b122ed6b6a50a860b5b11ca74

    SHA512

    137ffa623b300a99df9ab602979766ce4dc1dc53ea7f53549147fbc1696db6436dfe74193ccb6c5fab9b9e04e7006411ffcf428defb951e4219448b35bbf63c8

  • \Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202302021834461\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_202302021834461\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_202302021834461\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_202302021834461\opera_package

    Filesize

    118.3MB

    MD5

    5eacd17fa9f98577302b6da8b2639afc

    SHA1

    b84050f5247ae5b8428e739713b0f6291994bc69

    SHA256

    1c0df42c8f8fed8807eae7882b3b06308485375f71329ee960db74e317decefa

    SHA512

    3fd7143a0b505d1884e34270dd0d479005032df3071cc9cd9bee12659b6dcb04351053a0c0122b470ecd2c9b7550ec1597ab9fd9c31412e5081b7999305f6266

  • \Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202302021834461\opera_package

    Filesize

    118.3MB

    MD5

    5eacd17fa9f98577302b6da8b2639afc

    SHA1

    b84050f5247ae5b8428e739713b0f6291994bc69

    SHA256

    1c0df42c8f8fed8807eae7882b3b06308485375f71329ee960db74e317decefa

    SHA512

    3fd7143a0b505d1884e34270dd0d479005032df3071cc9cd9bee12659b6dcb04351053a0c0122b470ecd2c9b7550ec1597ab9fd9c31412e5081b7999305f6266

  • \Users\Admin\AppData\Local\Temp\Opera_installer_2302021834437511728.dll

    Filesize

    5.0MB

    MD5

    e92b0312740dae159b30fa3416fbbf8a

    SHA1

    12ee03f89a0311da3b236d34c8faa93c89b1fcfb

    SHA256

    d3887408ccdfb5a8d7c058d452e39a01d209edeffe93387381f75fe6c15ede79

    SHA512

    aa0397f648a985a1089a16fe978a873d5ef9550042c2d527871505311ece7e713d0e0b10fe08944017b1dd9c75414ce1bd4d10cb76ec2c4462a3275fffcfdc10

  • \Users\Admin\AppData\Local\Temp\Opera_installer_230202183444254952.dll

    Filesize

    5.0MB

    MD5

    e92b0312740dae159b30fa3416fbbf8a

    SHA1

    12ee03f89a0311da3b236d34c8faa93c89b1fcfb

    SHA256

    d3887408ccdfb5a8d7c058d452e39a01d209edeffe93387381f75fe6c15ede79

    SHA512

    aa0397f648a985a1089a16fe978a873d5ef9550042c2d527871505311ece7e713d0e0b10fe08944017b1dd9c75414ce1bd4d10cb76ec2c4462a3275fffcfdc10

  • \Users\Admin\AppData\Local\Temp\Opera_installer_230202183445127516.dll

    Filesize

    5.0MB

    MD5

    e92b0312740dae159b30fa3416fbbf8a

    SHA1

    12ee03f89a0311da3b236d34c8faa93c89b1fcfb

    SHA256

    d3887408ccdfb5a8d7c058d452e39a01d209edeffe93387381f75fe6c15ede79

    SHA512

    aa0397f648a985a1089a16fe978a873d5ef9550042c2d527871505311ece7e713d0e0b10fe08944017b1dd9c75414ce1bd4d10cb76ec2c4462a3275fffcfdc10

  • memory/516-68-0x0000000000400000-0x00000000009A8000-memory.dmp

    Filesize

    5.7MB

  • memory/952-64-0x0000000000400000-0x00000000009A8000-memory.dmp

    Filesize

    5.7MB

  • memory/1728-62-0x0000000002AC0000-0x0000000003068000-memory.dmp

    Filesize

    5.7MB

  • memory/1728-65-0x00000000034F0000-0x0000000003A98000-memory.dmp

    Filesize

    5.7MB

  • memory/1728-61-0x0000000000400000-0x00000000009A8000-memory.dmp

    Filesize

    5.7MB

  • memory/1728-55-0x0000000076391000-0x0000000076393000-memory.dmp

    Filesize

    8KB