Analysis

  • max time kernel
    94s
  • max time network
    132s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/09/2024, 21:36

General

  • Target

    1029dcd01ef706b3f69822871061d7f772f1c86697e7b8637f5ab39b45a3bb8a.exe

  • Size

    2.0MB

  • MD5

    46cb066b6f2fc487aec581c597489f19

  • SHA1

    777cf265f9e4134d5af0778a44d320d543b711c1

  • SHA256

    1029dcd01ef706b3f69822871061d7f772f1c86697e7b8637f5ab39b45a3bb8a

  • SHA512

    1425ca8c51cb6907dcfe8d3a51a637054d6234966a424b9498e17f5f88b68217db1423012afe8a06afaae5869210121596f789c9cbad176bc4208fec2acd9a9a

  • SSDEEP

    49152:JVAbwKJZfirDD3z7rIfNIhwMyJYUJb1kT2:/AJjsDD3DQN4w9JYU/M2

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 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1029dcd01ef706b3f69822871061d7f772f1c86697e7b8637f5ab39b45a3bb8a.exe
    "C:\Users\Admin\AppData\Local\Temp\1029dcd01ef706b3f69822871061d7f772f1c86697e7b8637f5ab39b45a3bb8a.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2024
    • C:\Users\Admin\AppData\Local\Temp\7zS8E7FEEC7\setup.exe
      C:\Users\Admin\AppData\Local\Temp\7zS8E7FEEC7\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:4296
      • C:\Users\Admin\AppData\Local\Temp\7zS8E7FEEC7\setup.exe
        C:\Users\Admin\AppData\Local\Temp\7zS8E7FEEC7\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=113.0.5230.55 --initial-client-data=0x32c,0x330,0x334,0x304,0x338,0x74f6ae8c,0x74f6ae98,0x74f6aea4
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:256
      • 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:420
      • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202409032136491\assistant\Assistant_113.0.5230.31_Setup.exe_sfx.exe
        "C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202409032136491\assistant\Assistant_113.0.5230.31_Setup.exe_sfx.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:1312
      • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202409032136491\assistant\assistant_installer.exe
        "C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202409032136491\assistant\assistant_installer.exe" --version
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2392
        • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202409032136491\assistant\assistant_installer.exe
          "C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202409032136491\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,0xa12c48,0xa12c54,0xa12c60
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • System Location Discovery: System Language Discovery
          PID:64

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_202409032136491\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_202409032136491\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_202409032136491\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_202409032136491\assistant\dbghelp.dll

    Filesize

    1.7MB

    MD5

    49c70bed12c523235e2e154326b1a8f0

    SHA1

    4a011c6909ea9c08357dd4bebdd62f8b3bfab8dd

    SHA256

    27251f799e2d950c561fda99c07ff49553c1d538ccd544bcd1ee12820eed5cd5

    SHA512

    1553f9ddbb95603d82c01668320a128766ba8b039ee127f86a2008de222e9390b4d8b7153443444790c946b40742b85625fbc422e81073a353e9e434cc56eba3

  • C:\Users\Admin\AppData\Local\Temp\7zS8E7FEEC7\setup.exe

    Filesize

    5.1MB

    MD5

    00f4da8f53fd86644a164ebfcf1fe357

    SHA1

    070450f81211cab4a9965bef26b0c666e34a8a9d

    SHA256

    9ec14b351477818405918c635bb6d8b3799b46b29fc389d513bd44a72a85dc20

    SHA512

    5c1b6a182b90483bc4cc6360481aac1789e9e0d660d1eaccec102ba73a18d948afa2ebc0abeb01cbceee7be0c305f4f9a1f8d3e22b437399bbcef4f287f9cbdd

  • C:\Users\Admin\AppData\Local\Temp\Opera_installer_2409032136481284296.dll

    Filesize

    4.6MB

    MD5

    9f6022a13fcbe5b751a6c8df6491763b

    SHA1

    bc4d26a68b56fe8fdab14f7b523ee553e50f04bf

    SHA256

    58f567aee73851e6cb656e8f9854dd3baf8d2be8160bf72c8603e83585abbccc

    SHA512

    5e7e2bfd08787e230e0d3e273cc9ef2953824977d8257ce5a4212c4281d3220f962c58bb774ae84d02087b260fd4f74a89079381ab8db8f97596f2791928723c

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

    Filesize

    40B

    MD5

    ffe6a0f62e1a06202f50eb365f2656d2

    SHA1

    9e66b204753c75cbd84e69cbec25d4ba0ed43e9d

    SHA256

    1348e557f3f76aad80f3d64202f9e3bd79035893ff000412a47bd7ab99615454

    SHA512

    1b515bcd154b2a883387ba5d0bf718222e83f8d4529eff9bd97141b0d4d5f0090fd141b3592b0717eadb76be0b01826fd6dcd231e2040f97bf67c965b25baedf