Analysis

  • max time kernel
    151s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/07/2023, 12:44

General

  • Target

    fce47a76ea8a40156eda40adee07f27d.exe

  • Size

    3.3MB

  • MD5

    fce47a76ea8a40156eda40adee07f27d

  • SHA1

    8ef94208bcf4bd2addbfe3ada2cc6544f664f0c2

  • SHA256

    158e12210c4af3f040d5c2a7228025965754dc7a9c61a092b4e96c8ce466c73d

  • SHA512

    0454f410a8ec878119ba63968bcf5063f41ddc4bbef03eddd52b972441be0e4db7dbb2b8338355d23e366b3ca4cb041be30227afcb2d46cd7d5fcc28d05a00e8

  • SSDEEP

    98304:tGh5zLtE2H+FACNuWHEe8KhEPYLNSUFQxOdEIj/Dz4gdCf1Vj8xuXlnWkD4v6:tytqZNuz1P8kUmKVjabDF

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 2 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\fce47a76ea8a40156eda40adee07f27d.exe
    "C:\Users\Admin\AppData\Local\Temp\fce47a76ea8a40156eda40adee07f27d.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Modifies system certificate store
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4576
    • C:\Users\Admin\AppData\Local\Temp\fce47a76ea8a40156eda40adee07f27d.exe
      C:\Users\Admin\AppData\Local\Temp\fce47a76ea8a40156eda40adee07f27d.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=100.0.4815.44 --initial-client-data=0x2f4,0x2f8,0x2fc,0x2d0,0x300,0x7519f188,0x7519f198,0x7519f1a4
      2⤵
      • Loads dropped DLL
      PID:5060
    • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\fce47a76ea8a40156eda40adee07f27d.exe
      "C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\fce47a76ea8a40156eda40adee07f27d.exe" --version
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:1996
    • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202307111244321\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_202307111244321\assistant\Opera_GX_assistant_73.0.3856.382_Setup.exe_sfx.exe"
      2⤵
      • Executes dropped EXE
      PID:2192
    • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202307111244321\assistant\assistant_installer.exe
      "C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202307111244321\assistant\assistant_installer.exe" --version
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:1708
      • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202307111244321\assistant\assistant_installer.exe
        "C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202307111244321\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,0x270,0x274,0x248,0x278,0x664f48,0x664f58,0x664f64
        3⤵
        • Executes dropped EXE
        PID:1084

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\fce47a76ea8a40156eda40adee07f27d.exe

          Filesize

          3.3MB

          MD5

          fce47a76ea8a40156eda40adee07f27d

          SHA1

          8ef94208bcf4bd2addbfe3ada2cc6544f664f0c2

          SHA256

          158e12210c4af3f040d5c2a7228025965754dc7a9c61a092b4e96c8ce466c73d

          SHA512

          0454f410a8ec878119ba63968bcf5063f41ddc4bbef03eddd52b972441be0e4db7dbb2b8338355d23e366b3ca4cb041be30227afcb2d46cd7d5fcc28d05a00e8

        • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202307111244321\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_202307111244321\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_202307111244321\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_202307111244321\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_202307111244321\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_202307111244321\opera_package

          Filesize

          123.8MB

          MD5

          8a7b9d0e8ebd04be9a2398264fa34889

          SHA1

          c8350b12cf3e6e3775d84295ddffc31ae47cac5b

          SHA256

          d215cd617384dcba824cc1b87f45d2c8330c48047b68dd1608017cddb2c0af2e

          SHA512

          59ad6d95e84b6f40a7ff0d34e66b39a8a1c246e660010a55442f1fd78f9ef95aa9169a21e0ac0bf95ddc435034cddbecd21faa5122dd821aff44d5a09d4cc09f

        • C:\Users\Admin\AppData\Local\Temp\Opera_installer_2307111244295494576.dll

          Filesize

          5.0MB

          MD5

          c7c2650a0c5a2f8e23a1ee38a8f1f721

          SHA1

          ed48267ce8999f23ca30b82bfc3424f7e241db80

          SHA256

          636aa3919dc57a066eae1c343573cb788589c5451893d086fc2157427cd73f3b

          SHA512

          1a9d426c590bcdba0b2e22e00ffb1a157e60947ca0cf3b7f430c544546a962e5815d92cb8884f9600204ae85c126ff2d77ab4145f5a6f8a1e8b9e11cc63ac8e6

        • C:\Users\Admin\AppData\Local\Temp\Opera_installer_2307111244303305060.dll

          Filesize

          5.0MB

          MD5

          c7c2650a0c5a2f8e23a1ee38a8f1f721

          SHA1

          ed48267ce8999f23ca30b82bfc3424f7e241db80

          SHA256

          636aa3919dc57a066eae1c343573cb788589c5451893d086fc2157427cd73f3b

          SHA512

          1a9d426c590bcdba0b2e22e00ffb1a157e60947ca0cf3b7f430c544546a962e5815d92cb8884f9600204ae85c126ff2d77ab4145f5a6f8a1e8b9e11cc63ac8e6

        • C:\Users\Admin\AppData\Local\Temp\Opera_installer_2307111244308931996.dll

          Filesize

          5.0MB

          MD5

          c7c2650a0c5a2f8e23a1ee38a8f1f721

          SHA1

          ed48267ce8999f23ca30b82bfc3424f7e241db80

          SHA256

          636aa3919dc57a066eae1c343573cb788589c5451893d086fc2157427cd73f3b

          SHA512

          1a9d426c590bcdba0b2e22e00ffb1a157e60947ca0cf3b7f430c544546a962e5815d92cb8884f9600204ae85c126ff2d77ab4145f5a6f8a1e8b9e11cc63ac8e6

        • C:\Users\Admin\AppData\Local\Temp\Opera_installer_2307111244308931996.dll

          Filesize

          5.0MB

          MD5

          c7c2650a0c5a2f8e23a1ee38a8f1f721

          SHA1

          ed48267ce8999f23ca30b82bfc3424f7e241db80

          SHA256

          636aa3919dc57a066eae1c343573cb788589c5451893d086fc2157427cd73f3b

          SHA512

          1a9d426c590bcdba0b2e22e00ffb1a157e60947ca0cf3b7f430c544546a962e5815d92cb8884f9600204ae85c126ff2d77ab4145f5a6f8a1e8b9e11cc63ac8e6

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

          Filesize

          40B

          MD5

          35e48064df5eb8790f250bdb855f7be8

          SHA1

          a80051c655e154d4e94c7eee3c72efc652a77b17

          SHA256

          414ebda95e25630e75768115732fae9db047c2e3b9f1786e6df51236a1e2727e

          SHA512

          bc6e00c8cdc6be01f8f172c40cbb651aef8218ad2dec43fac8fb285a26694fc2ece74c8a84ff515a176aab4f4e8556ac8890846655ab84b3afbf5f403bf0e5d1

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

          Filesize

          40B

          MD5

          35e48064df5eb8790f250bdb855f7be8

          SHA1

          a80051c655e154d4e94c7eee3c72efc652a77b17

          SHA256

          414ebda95e25630e75768115732fae9db047c2e3b9f1786e6df51236a1e2727e

          SHA512

          bc6e00c8cdc6be01f8f172c40cbb651aef8218ad2dec43fac8fb285a26694fc2ece74c8a84ff515a176aab4f4e8556ac8890846655ab84b3afbf5f403bf0e5d1

        • memory/1996-151-0x0000000000270000-0x000000000081F000-memory.dmp

          Filesize

          5.7MB

        • memory/4576-139-0x00000000001A0000-0x000000000074F000-memory.dmp

          Filesize

          5.7MB

        • memory/5060-143-0x00000000001A0000-0x000000000074F000-memory.dmp

          Filesize

          5.7MB