Analysis

  • max time kernel
    138s
  • max time network
    136s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/08/2024, 23:31

General

  • Target

    d0a6b6f61d02ac13e01f80f641a1acce077674542960678dc1a3dde578c0a71a.exe

  • Size

    6.3MB

  • MD5

    a8dabb5de92e2aea525ae4ddd00b7f6a

  • SHA1

    5cb6a729592c77eabf7b7b2974b899f29743b564

  • SHA256

    d0a6b6f61d02ac13e01f80f641a1acce077674542960678dc1a3dde578c0a71a

  • SHA512

    bd3ba728d3af0aefa0a939bb1234e39f55c1df3f7324dcd71b19a2ab1f42b92b5840175aa1443afd2c3b289a40565d172a97301637244c4e4324f3a91d517535

  • SSDEEP

    196608:FkDKFfRYtPz8Z3x0GHBOik8DXVnO38fXS65VkmSsLAZNAdIhqx89/DRt5/pnp2z3:CDKFfRYtPz8Z3xNHBOik8DXVnO38fXSS

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.

  • 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 6 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 6 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d0a6b6f61d02ac13e01f80f641a1acce077674542960678dc1a3dde578c0a71a.exe
    "C:\Users\Admin\AppData\Local\Temp\d0a6b6f61d02ac13e01f80f641a1acce077674542960678dc1a3dde578c0a71a.exe"
    1⤵
    • 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:740
    • C:\Users\Admin\AppData\Local\Temp\d0a6b6f61d02ac13e01f80f641a1acce077674542960678dc1a3dde578c0a71a.exe
      C:\Users\Admin\AppData\Local\Temp\d0a6b6f61d02ac13e01f80f641a1acce077674542960678dc1a3dde578c0a71a.exe --type=crashpad-handler /prefetch:4 --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=109.0.5097.126 --initial-client-data=0x2a8,0x2ac,0x2b0,0x288,0x2b4,0x74fd52b8,0x74fd52c4,0x74fd52d0
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:3668
    • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\d0a6b6f61d02ac13e01f80f641a1acce077674542960678dc1a3dde578c0a71a.exe
      "C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\d0a6b6f61d02ac13e01f80f641a1acce077674542960678dc1a3dde578c0a71a.exe" --version
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:3236
    • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202408192331421\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_202408192331421\assistant\Opera_GX_assistant_73.0.3856.382_Setup.exe_sfx.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3016
    • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202408192331421\assistant\assistant_installer.exe
      "C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202408192331421\assistant\assistant_installer.exe" --version
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1264
      • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202408192331421\assistant\assistant_installer.exe
        "C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202408192331421\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,0x270,0x274,0x248,0x278,0x704f48,0x704f58,0x704f64
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:4256

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\d0a6b6f61d02ac13e01f80f641a1acce077674542960678dc1a3dde578c0a71a.exe

    Filesize

    6.3MB

    MD5

    a8dabb5de92e2aea525ae4ddd00b7f6a

    SHA1

    5cb6a729592c77eabf7b7b2974b899f29743b564

    SHA256

    d0a6b6f61d02ac13e01f80f641a1acce077674542960678dc1a3dde578c0a71a

    SHA512

    bd3ba728d3af0aefa0a939bb1234e39f55c1df3f7324dcd71b19a2ab1f42b92b5840175aa1443afd2c3b289a40565d172a97301637244c4e4324f3a91d517535

  • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202408192331421\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_202408192331421\assistant\assistant_installer.exe

    Filesize

    1.8MB

    MD5

    4c8fbed0044da34ad25f781c3d117a66

    SHA1

    8dd93340e3d09de993c3bc12db82680a8e69d653

    SHA256

    afe569ce9e4f71c23ba5f6e8fd32be62ac9538e397cde8f2ecbe46faa721242a

    SHA512

    a04e6fd052d2d63a0737c83702c66a9af834f9df8423666508c42b3e1d8384300239c9ddacdc31c1e85140eb1193bcfac209f218750b40342492ffce6e9da481

  • C:\Users\Admin\AppData\Local\Temp\Opera_installer_240819233141676740.dll

    Filesize

    5.8MB

    MD5

    b77ffe273d020d6c8d5c852882826bd2

    SHA1

    9d70f00b7e6012c0a4b851ba49cba03ef155022a

    SHA256

    22fdf401dc67434eb4432b55832ef1b8b2a874eaac3b45737593d73b875c6e8e

    SHA512

    8126b7d5c3681e2d2a028fbbbf773b5ebb8b659b763249d9776996b057ae1ea802e5dba916b21d55e9dc736940b2699249a4d20fe2886fc78176b0d866569099

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

    Filesize

    40B

    MD5

    c2d603388bf324dc5721b9cae10a065b

    SHA1

    801092bfd8477194ee8c30135e58ee494b8b8051

    SHA256

    f3cd23a988e374dec6417eb93f2adad47e14351444c8219b2261da063d819e89

    SHA512

    e5afd4d38789f72e1af7a4036074dbf3a9b8481b97c6647a05844ef8c0220c4e006b51d03529d24e939f7bd1b5c93ace4556afd6900f2dd36b2b85c5dcfcfc47