Analysis

  • max time kernel
    166s
  • max time network
    170s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231023-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-11-2023 17:33

General

  • Target

    OperaGXSetup (2).exe

  • Size

    3.4MB

  • MD5

    79518a48e0605d2ea341f1aa6a574e8f

  • SHA1

    0882db2bc0097b475c7223dd3718acf063218444

  • SHA256

    2a5407e3c6e47936b2f44402111680585eeaa77e069d44170cc25bfeea0af847

  • SHA512

    e83769b463e435b7f90159e1f8cf239eff3746c10a01fe5c89126db02fabc2a1212101fca79d681d0c20a017bb592c1142e29b6927b0c50998450547f4fca47e

  • SSDEEP

    98304:MWPbERK55V/LpH3e9NQarN0gHMOlDjoxHsc2JS9mihr+DywoS0yBBx9pjm:PbERK5VlGSarNLHzCWmTyfs

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 7 IoCs

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

  • Enumerates connected drives 3 TTPs 2 IoCs

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

  • Modifies system certificate store 2 TTPs 8 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:4848
    • 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=102.0.4880.117 --initial-client-data=0x2ec,0x2f0,0x2f4,0x2c0,0x2f8,0x74ad56b8,0x74ad56c8,0x74ad56d4
      2⤵
      • Loads dropped DLL
      PID:2392
    • 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:2732
    • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202311071735501\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_202311071735501\assistant\Opera_GX_assistant_73.0.3856.382_Setup.exe_sfx.exe"
      2⤵
      • Executes dropped EXE
      PID:1984
    • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202311071735501\assistant\assistant_installer.exe
      "C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202311071735501\assistant\assistant_installer.exe" --version
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:3296
      • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202311071735501\assistant\assistant_installer.exe
        "C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202311071735501\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,0x270,0x274,0x248,0x278,0x4b4f48,0x4b4f58,0x4b4f64
        3⤵
        • Executes dropped EXE
        PID:5048

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\OperaGXSetup (2).exe

    Filesize

    3.4MB

    MD5

    79518a48e0605d2ea341f1aa6a574e8f

    SHA1

    0882db2bc0097b475c7223dd3718acf063218444

    SHA256

    2a5407e3c6e47936b2f44402111680585eeaa77e069d44170cc25bfeea0af847

    SHA512

    e83769b463e435b7f90159e1f8cf239eff3746c10a01fe5c89126db02fabc2a1212101fca79d681d0c20a017bb592c1142e29b6927b0c50998450547f4fca47e

  • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202311071735501\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_202311071735501\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_202311071735501\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_202311071735501\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_202311071735501\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_202311071735501\opera_package

    Filesize

    122.8MB

    MD5

    072313212e66b87fc549a7670c783e34

    SHA1

    16e403ff85e50b4bf31b164debe2025ea35920c9

    SHA256

    7253f2ab487dd22e7f8a8fb4b646c35db12bc5d76770401c9132daa6bde9caa1

    SHA512

    26e7728cd5425baecb333aabf7512a7c0cb715a1709449c2a0f91c5b30f71c4eb2ca5a3c3a02db6164e4db2c0cd991c28829518be4647cdeeb2b6f93865ef758

  • C:\Users\Admin\AppData\Local\Temp\Opera_installer_2311071735406494848.dll

    Filesize

    5.2MB

    MD5

    5981bac446c91de9b4884472340f14f8

    SHA1

    bce5b82c14ccdabec6c282af3b5adc4357635d38

    SHA256

    54a4ad6b085703e6b0763de2b266414a9267041a3536292e0436062f8d49e7db

    SHA512

    ff20892abf6c50f055defe7a181100676f80cdf79b3d747ba09aa74bfaa0eb4edfd0c6e0d55dc58e3610bd7343fd415c057348588ab993e2ab9129c836df36d2

  • C:\Users\Admin\AppData\Local\Temp\Opera_installer_2311071735412732392.dll

    Filesize

    5.2MB

    MD5

    5981bac446c91de9b4884472340f14f8

    SHA1

    bce5b82c14ccdabec6c282af3b5adc4357635d38

    SHA256

    54a4ad6b085703e6b0763de2b266414a9267041a3536292e0436062f8d49e7db

    SHA512

    ff20892abf6c50f055defe7a181100676f80cdf79b3d747ba09aa74bfaa0eb4edfd0c6e0d55dc58e3610bd7343fd415c057348588ab993e2ab9129c836df36d2

  • C:\Users\Admin\AppData\Local\Temp\Opera_installer_2311071735455552732.dll

    Filesize

    5.2MB

    MD5

    5981bac446c91de9b4884472340f14f8

    SHA1

    bce5b82c14ccdabec6c282af3b5adc4357635d38

    SHA256

    54a4ad6b085703e6b0763de2b266414a9267041a3536292e0436062f8d49e7db

    SHA512

    ff20892abf6c50f055defe7a181100676f80cdf79b3d747ba09aa74bfaa0eb4edfd0c6e0d55dc58e3610bd7343fd415c057348588ab993e2ab9129c836df36d2

  • C:\Users\Admin\AppData\Local\Temp\Opera_installer_2311071735455552732.dll

    Filesize

    5.2MB

    MD5

    5981bac446c91de9b4884472340f14f8

    SHA1

    bce5b82c14ccdabec6c282af3b5adc4357635d38

    SHA256

    54a4ad6b085703e6b0763de2b266414a9267041a3536292e0436062f8d49e7db

    SHA512

    ff20892abf6c50f055defe7a181100676f80cdf79b3d747ba09aa74bfaa0eb4edfd0c6e0d55dc58e3610bd7343fd415c057348588ab993e2ab9129c836df36d2

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

    Filesize

    40B

    MD5

    17f2a6419c6bf2c0c407ab0e3508fd50

    SHA1

    1e38737537648cd7966f6f99ed834baa1d51fc6a

    SHA256

    cc17b1008421052dff57ae88b8fae2595130d630c44ced10d0a14e37be3f131d

    SHA512

    53b4ab7ecb8d7900caefbd6fa5b10521a6230194d18144fee9f43fa5160ef15b3a36d6e32025a8c01c0e45948adfc8582cb1e5ba950e4f49ede7f43898cfa3e1

  • memory/2392-5-0x0000000000740000-0x0000000000CFA000-memory.dmp

    Filesize

    5.7MB

  • memory/2392-23-0x0000000000740000-0x0000000000CFA000-memory.dmp

    Filesize

    5.7MB

  • memory/2732-21-0x0000000000BF0000-0x00000000011AA000-memory.dmp

    Filesize

    5.7MB

  • memory/2732-15-0x0000000000BF0000-0x00000000011AA000-memory.dmp

    Filesize

    5.7MB

  • memory/4848-0-0x0000000000740000-0x0000000000CFA000-memory.dmp

    Filesize

    5.7MB

  • memory/4848-17-0x0000000000740000-0x0000000000CFA000-memory.dmp

    Filesize

    5.7MB