Analysis

  • max time kernel
    146s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/02/2023, 01:28

General

  • Target

    OperaGXSetup.exe

  • Size

    3.3MB

  • MD5

    5327e44bc162bf17137c162774cf4c72

  • SHA1

    6753e8d69867c1e2c98732078a33492cca54195b

  • SHA256

    5133bef4419e439869c0721413ff3aec73eeab9f22d6ff3f8f4517342985d83e

  • SHA512

    3968f885743633b01a2b8fe2c887f72825c8949de0393359c89a389ccb36c99e8890caa4ef379bae00f358c27a8875e022c8423987ddcaab0afdb62e54a42d69

  • SSDEEP

    98304:D0ajce7mlMqtf9HgogeLb0IwfytUP5uK5N8xuXlYlmsUC:VcxZf9HEl5uauhN

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 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 11 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 15 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:904
    • 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=87.0.4390.56 --initial-client-data=0x2f8,0x2fc,0x300,0x2f4,0x304,0x75299ee0,0x75299ef0,0x75299efc
      2⤵
      • Loads dropped DLL
      PID:1808
    • 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:3556
    • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202302050229261\assistant\_sfx.exe
      "C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202302050229261\assistant\_sfx.exe"
      2⤵
      • Executes dropped EXE
      PID:4660
    • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202302050229261\assistant\assistant_installer.exe
      "C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202302050229261\assistant\assistant_installer.exe" --version
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:4704
      • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202302050229261\assistant\assistant_installer.exe
        "C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202302050229261\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,0x270,0x274,0x248,0x278,0x1084f48,0x1084f58,0x1084f64
        3⤵
        • Executes dropped EXE
        PID:1196

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

    3.3MB

    MD5

    5327e44bc162bf17137c162774cf4c72

    SHA1

    6753e8d69867c1e2c98732078a33492cca54195b

    SHA256

    5133bef4419e439869c0721413ff3aec73eeab9f22d6ff3f8f4517342985d83e

    SHA512

    3968f885743633b01a2b8fe2c887f72825c8949de0393359c89a389ccb36c99e8890caa4ef379bae00f358c27a8875e022c8423987ddcaab0afdb62e54a42d69

  • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202302050229261\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_202302050229261\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_202302050229261\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_202302050229261\assistant\assistant_installer.exe

    Filesize

    1.8MB

    MD5

    4c8fbed0044da34ad25f781c3d117a66

    SHA1

    8dd93340e3d09de993c3bc12db82680a8e69d653

    SHA256

    afe569ce9e4f71c23ba5f6e8fd32be62ac9538e397cde8f2ecbe46faa721242a

    SHA512

    a04e6fd052d2d63a0737c83702c66a9af834f9df8423666508c42b3e1d8384300239c9ddacdc31c1e85140eb1193bcfac209f218750b40342492ffce6e9da481

  • C:\Users\Admin\AppData\Local\Temp\Opera_installer_230205022924378904.dll

    Filesize

    5.2MB

    MD5

    8c46f73c4fca7cb715ab4609c021b07c

    SHA1

    dbea64db33a34ac5f9ba7bf3506fef905fb0f121

    SHA256

    476fc55b3a2d2129a4f520162598bb3afcce14228872f151abf6ec06c1f16aa2

    SHA512

    aefbf5b872653234b86233fe44b252f79e994746f87c9c041ea515c7feceeeeca2b45e32d6db4fd4253be319abbc29a810ae51316e5e0c4e7923f47927e7a6ae

  • C:\Users\Admin\AppData\Local\Temp\Opera_installer_2302050229257531808.dll

    Filesize

    5.2MB

    MD5

    8c46f73c4fca7cb715ab4609c021b07c

    SHA1

    dbea64db33a34ac5f9ba7bf3506fef905fb0f121

    SHA256

    476fc55b3a2d2129a4f520162598bb3afcce14228872f151abf6ec06c1f16aa2

    SHA512

    aefbf5b872653234b86233fe44b252f79e994746f87c9c041ea515c7feceeeeca2b45e32d6db4fd4253be319abbc29a810ae51316e5e0c4e7923f47927e7a6ae

  • C:\Users\Admin\AppData\Local\Temp\Opera_installer_2302050229263473556.dll

    Filesize

    5.2MB

    MD5

    8c46f73c4fca7cb715ab4609c021b07c

    SHA1

    dbea64db33a34ac5f9ba7bf3506fef905fb0f121

    SHA256

    476fc55b3a2d2129a4f520162598bb3afcce14228872f151abf6ec06c1f16aa2

    SHA512

    aefbf5b872653234b86233fe44b252f79e994746f87c9c041ea515c7feceeeeca2b45e32d6db4fd4253be319abbc29a810ae51316e5e0c4e7923f47927e7a6ae

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

    Filesize

    40B

    MD5

    db104b72e5081f9ea935070be6fca3a3

    SHA1

    89db5165395bfe2f1b0fac274c63f9fcaffea5d3

    SHA256

    5ddb4df0cbcb95cc5591af1ab285d599accfcc08f4826975ab286f28c68d79bb

    SHA512

    9b1bdcef0367bd0ffd01f65ebb38deb62a6090e0ee006b68c7a24bf41578914219f1d36286d9c3de1e64b2fda857dece31cd1d6f902de26da5f00087ad9c3f1e

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

    Filesize

    40B

    MD5

    db104b72e5081f9ea935070be6fca3a3

    SHA1

    89db5165395bfe2f1b0fac274c63f9fcaffea5d3

    SHA256

    5ddb4df0cbcb95cc5591af1ab285d599accfcc08f4826975ab286f28c68d79bb

    SHA512

    9b1bdcef0367bd0ffd01f65ebb38deb62a6090e0ee006b68c7a24bf41578914219f1d36286d9c3de1e64b2fda857dece31cd1d6f902de26da5f00087ad9c3f1e

  • memory/904-142-0x0000000000400000-0x00000000009C5000-memory.dmp

    Filesize

    5.8MB

  • memory/904-132-0x0000000000400000-0x00000000009C5000-memory.dmp

    Filesize

    5.8MB

  • memory/1808-140-0x0000000000400000-0x00000000009C5000-memory.dmp

    Filesize

    5.8MB

  • memory/3556-143-0x0000000000400000-0x00000000009C5000-memory.dmp

    Filesize

    5.8MB

  • memory/3556-141-0x0000000000400000-0x00000000009C5000-memory.dmp

    Filesize

    5.8MB