Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-08-2024 21:53

General

  • Target

    142edbd4e2091544f3119559abe288b014fabcc4a7a1e3c53bc5858924f46afb.exe

  • Size

    2.0MB

  • MD5

    6d28de37ba92cfb4282a5a4aff933d1e

  • SHA1

    8d0725888f7e75b4cb7e18c10e20a9d798fe5624

  • SHA256

    142edbd4e2091544f3119559abe288b014fabcc4a7a1e3c53bc5858924f46afb

  • SHA512

    fac774b9b76d43632eb55932fa5b8452a5a5b6a0ce08acbd86f3eed3d10f2846fa213d53a11e6457392fbfbfe625ce6cf80787ebca93f4cd1ba16b8e0b4d670d

  • SSDEEP

    49152:XVAbwUQUFD1VR+zbTPDyoW53zJJfvRCYd60p9e9bldMi:FACQZGbo1HRCYd6b9x+

Malware Config

Signatures

  • Downloads MZ/PE file
  • Executes dropped EXE 6 IoCs
  • Loads dropped DLL 7 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Enumerates connected drives 3 TTPs 2 IoCs

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

  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\142edbd4e2091544f3119559abe288b014fabcc4a7a1e3c53bc5858924f46afb.exe
    "C:\Users\Admin\AppData\Local\Temp\142edbd4e2091544f3119559abe288b014fabcc4a7a1e3c53bc5858924f46afb.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3372
    • C:\Users\Admin\AppData\Local\Temp\7zSC2D94E57\setup.exe
      C:\Users\Admin\AppData\Local\Temp\7zSC2D94E57\setup.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Enumerates connected drives
      • System Location Discovery: System Language Discovery
      • Modifies system certificate store
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4112
      • C:\Users\Admin\AppData\Local\Temp\7zSC2D94E57\setup.exe
        C:\Users\Admin\AppData\Local\Temp\7zSC2D94E57\setup.exe --type=crashpad-handler /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Roaming\Opera Software\Opera Stable\Crash Reports" "--crash-count-file=C:\Users\Admin\AppData\Roaming\Opera Software\Opera Stable\crash_count.txt" --url=https://crashstats-collector-2.opera.com/ --annotation=channel=Stable --annotation=plat=Win32 --annotation=prod=OperaDesktop --annotation=ver=113.0.5230.32 --initial-client-data=0x32c,0x330,0x334,0x300,0x338,0x74ebae8c,0x74ebae98,0x74ebaea4
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4980
      • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\setup.exe
        "C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\setup.exe" --version
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3640
      • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202408252153341\assistant\Assistant_113.0.5230.31_Setup.exe_sfx.exe
        "C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202408252153341\assistant\Assistant_113.0.5230.31_Setup.exe_sfx.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2388
      • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202408252153341\assistant\assistant_installer.exe
        "C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202408252153341\assistant\assistant_installer.exe" --version
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1680
        • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202408252153341\assistant\assistant_installer.exe
          "C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202408252153341\assistant\assistant_installer.exe" --type=crashpad-handler /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Roaming\Opera Software\Opera Stable\Crash Reports" "--crash-count-file=C:\Users\Admin\AppData\Roaming\Opera Software\Opera Stable\crash_count.txt" --url=https://crashstats-collector-2.opera.com/ --annotation=channel=Stable --annotation=plat=Win32 --annotation=prod=OperaDesktop --annotation=ver=113.0.5230.31 --initial-client-data=0x220,0x224,0x228,0x1fc,0x22c,0x5f2c48,0x5f2c54,0x5f2c60
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • System Location Discovery: System Language Discovery
          PID:4360

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202408252153341\additional_file0.tmp

    Filesize

    2.6MB

    MD5

    0995a010e2f8b866c6abca90fa49130f

    SHA1

    f282871f9d6333f5bcc738062613c44567a58dc0

    SHA256

    74d4c26b0ee35a7431944e51aaf5ec4ab3338b6776bf44bdfdbc1e201b4fea76

    SHA512

    b98e4bd252a9bdb11a7f15c795910daabdbe8e0ba0fa86a5ee6f8167ff66a9b67790c51f700666239781ad46241926590588b6831d16e5057dcbfebe37c3ae6b

  • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202408252153341\assistant\assistant_installer.exe

    Filesize

    1.9MB

    MD5

    1d980ac7aa07def69627a334168853f9

    SHA1

    c4b6a91eb61eb1a946b922ceef9aea86dde79eb5

    SHA256

    a08d4c13a57600c280d10aa2d0c5c13352638b6ac38651aa908af1c0ec351807

    SHA512

    e8f7afb5299d627d67f6656f71006f60c1dbaa535175ff935d2934197e2ed5faca0f9d64897695965deeeea7612a4229bf117a8243a3b5de902a001d4e91797b

  • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202408252153341\assistant\dbgcore.DLL

    Filesize

    166KB

    MD5

    98d373f7e891c8282b7a163880ffff55

    SHA1

    a84b5607aebd38833a96ee46b33f2d1b748e6ea0

    SHA256

    67bce323f46300c83866e02b1a3923b93834e30741999b965b351531073e8f2b

    SHA512

    b417629c5276ed942578273af5d2de4ab35fdb1cec102b47999b0b54d50c98d0ec36e8fca01db8c6f9fc4dc6aa130fef916fe07d131586c84f4a75bb589bb927

  • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202408252153341\assistant\dbghelp.dll

    Filesize

    1.7MB

    MD5

    49c70bed12c523235e2e154326b1a8f0

    SHA1

    4a011c6909ea9c08357dd4bebdd62f8b3bfab8dd

    SHA256

    27251f799e2d950c561fda99c07ff49553c1d538ccd544bcd1ee12820eed5cd5

    SHA512

    1553f9ddbb95603d82c01668320a128766ba8b039ee127f86a2008de222e9390b4d8b7153443444790c946b40742b85625fbc422e81073a353e9e434cc56eba3

  • C:\Users\Admin\AppData\Local\Temp\7zSC2D94E57\setup.exe

    Filesize

    5.1MB

    MD5

    96be1b5fb15ec0912b8de6133d283180

    SHA1

    86d5f8af9018f27045389a48a66dffa7e1f8daf1

    SHA256

    04eead61515be0515643281aa8f29809facddd419c5bc06450d031d64e60461c

    SHA512

    c649720a6ac4409b32663f9987aca971e1475b7e30c2b7c2c31467a1214228f8d93f154580b0436933f86f998e8079d0df7e2f67b20adfa2aaaaff075a16ed32

  • C:\Users\Admin\AppData\Local\Temp\Opera_installer_2408252153337064112.dll

    Filesize

    4.6MB

    MD5

    b84992e5212817c964aa64b35dbf0ac6

    SHA1

    9361bf7b334f06ee3b3fd0770bf8dea0c2518146

    SHA256

    a3a7dab81491b07cda3d6c5d8ed1655c9b39c6db01a532d7d429b2f0aece3fc8

    SHA512

    9b61ab193514505c64fdad8b7457bec96ae7af1835a16d60f781e1240d29f20fa72479d395e3ff45f42197ffc82e96eac107f9d19ef3274efaddd71ee66ba2a4

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

    Filesize

    40B

    MD5

    8386cc063594b30128495e8820cafc74

    SHA1

    b4d84fdb026a52fffae8f8766217248177159ce1

    SHA256

    d3868dc097c7b8e3490e8ae3f64602aad486d395f6dff2b4c6d9e94cd8c38c0f

    SHA512

    dd276d028de8031532847f3c8b8681944fe31ede2979980d986f9808851a8d46ca504dae4a6367899048e10d91c70b356ea1853b70b3c1ac1661d98490eb3e77