Analysis
- max time kernel
149s - max time network
127s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
23/10/2026, 04:34
Static task
static1
Behavioral task
behavioral1
Sample
OperaGXSetup(1).exe
Resource
win10v2004-20260911-en
Behavioral task
behavioral2
Sample
OperaGXSetup(1).exe
Resource
win11ltsc2024-20260911-en
General
- Target OperaGXSetup(1).exe
- Size 4.0MB
- Sample261023-e7d2ysby9n
- SHA256 712beddf69888728f9d2d80e1afd36cff8c66b6ce7fdd5ecfa3b3b90a93c230c
- MD5 819bff076a088f3cd93831927ff54ebe
- SHA1 c40bf44aa6280f2f67368d6c5766e852bb606513
- SHA512 8a9171f637fb033265734e8cc917dfda4d952e34ca9422704c02701cdf738a09327a5780c93a7ac1783a6839c231ae2b0e52106a860af3c37c5a679ca047d863
- SSDEEP 98304:MA/TGXUwgfmIarxovlcO9pOX0YXMXL8eo/YKufqBWhEEw:DwgfhJv2do87YKuCSy
- TLSH T1DF1633317785C431D5A322324EB5AA5856FFB1511F37068B27846EBCAFE1281BB34F4A
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Downloads MZ/PE file 1 IoCs
flow pid Process 19 1332 installer.exe - Executes dropped EXE 6 IoCs
pid Process 1332 installer.exe 3200 installer.exe 1240 installer.exe 1176 Opera_GX_assistant_137.0.6036.65_Setup.exe_sfx.exe 964 assistant_installer.exe 1876 assistant_installer.exe - Loads dropped DLL 4 IoCs
pid Process 964 assistant_installer.exe 964 assistant_installer.exe 1876 assistant_installer.exe 1876 assistant_installer.exe - Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Writes a Windows system DLL name to a user directory 2 TTPs 1 IoCs
A module named after a system DLL outside System32 can be loaded instead of the real one by a program searching that directory.
description ioc Process File created C:\Users\Admin\AppData\Local\Temp\.opera\7ce91a27-ae0e-403e-bd5c-94568c6ba2c1 Opera GX Installer Temp\opera_package_202610230534561\assistant\dbghelp.dll Opera_GX_assistant_137.0.6036.65_Setup.exe_sfx.exe - Enumerates connected drives 3 TTPs 2 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\E: installer.exe File opened (read-only) \??\F: installer.exe - Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
description ioc Process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname installer.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain installer.exe - System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language OperaGXSetup(1).exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Opera_GX_assistant_137.0.6036.65_Setup.exe_sfx.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language assistant_installer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language assistant_installer.exe - Enumerates system info in registry 2 TTPs 4 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS installer.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName installer.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS assistant_installer.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName assistant_installer.exe - Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1332 installer.exe 1332 installer.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 3324 wrote to memory of 1332 3324 OperaGXSetup(1).exe 90 PID 1332 wrote to memory of 3200 1332 installer.exe 91 PID 1332 wrote to memory of 1240 1332 installer.exe 92 PID 1332 wrote to memory of 1176 1332 installer.exe 94 PID 1332 wrote to memory of 964 1332 installer.exe 95 PID 964 wrote to memory of 1876 964 assistant_installer.exe 96
Processes
-
C:\Users\Admin\AppData\Local\Temp\OperaGXSetup(1).exe"C:\Users\Admin\AppData\Local\Temp\OperaGXSetup(1).exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3324 -
C:\Users\Admin\AppData\Local\Temp\7zSCFC6F9E8\installer.exeC:\Users\Admin\AppData\Local\Temp\7zSCFC6F9E8\installer.exe --server-tracking-blob=ZGVhMzJmMjM0Mjg0NjgzMzk1YzFlYTNjODJlZjkwY2QwNTE2OWEzMjliZTNmOTU2OGIwNzk4NjMzNTdkYTFlNDp7ImNvdW50cnkiOiJVUyIsImVkaXRpb24iOiJzdGQtMiIsImZhc3Rfb25ib2FyZGluZyI6e30sImh0dHBfcmVmZXJyZXIiOiJodHRwczovL3d3dy5vcGVyYS5jb20vIiwiaW5zdGFsbGVyX25hbWUiOiJPcGVyYUdYU2V0dXAuZXhlIiwicHJvZHVjdCI6Im9wZXJhX2d4IiwicXVlcnkiOiIvb3BlcmFfZ3gvc3RhYmxlL3dpbmRvd3M/ZWRpdGlvbj1zdGQtMiZ1dG1fc291cmNlPVBXTmdhbWVzJnV0bV9tZWRpdW09cGEmdXRtX2NhbXBhaWduPVBXTl9VU19IVlJfOTU3MV9XRUJfNjU5JmVkaXRpb249c3RkLTImdXRtX2lkPTUyMmQ1ZGMwNWQyZTRjMmU5MDM4NTVhODc0MWI2Y2Y3Jmh0dHBfcmVmZXJyZXI9aHR0cHMlM0ElMkYlMkZ3d3cub3BlcmEuY29tJTJGZ2V0JTJGb3BlcmEtZ3glM0Z1dG1fbWVkaXVtJTNEcGElMjZ1dG1fY2FtcGFpZ24lM0RQV05fVVNfSFZSXzk1NzFfV0VCXzY1OSUyNnV0bV9pZCUzRDUyMmQ1ZGMwNWQyZTRjMmU5MDM4NTVhODc0MWI2Y2Y3JTI2dXRtX3NvdXJjZSUzRFBXTmdhbWVzJTI2ZWRpdGlvbiUzRHN0ZC0yJnV0bV9zaXRlPW9wZXJhX2NvbSZ1dG1fbGFzdHBhZ2U9b3BlcmEuY29tJTJGZ2V0JTJGb3BlcmEtZ3gmdXRtX2lkPTUyMmQ1ZGMwNWQyZTRjMmU5MDM4NTVhODc0MWI2Y2Y3JmRsX3Rva2VuPTQ3MDgwOTY3IiwidGltZXN0YW1wIjoiMTc5MjczMDA0NC4yODE1IiwidXNlcmFnZW50IjoiTW96aWxsYS81LjAgKFdpbmRvd3MgTlQgMTAuMDsgV2luNjQ7IHg2NDsgcnY6MTU4LjApIEdlY2tvLzIwMTAwMTAxIEZpcmVmb3gvMTU4LjAiLCJ1dG0iOnsiY2FtcGFpZ24iOiJQV05fVVNfSFZSXzk1NzFfV0VCXzY1OSIsImlkIjoiNTIyZDVkYzA1ZDJlNGMyZTkwMzg1NWE4NzQxYjZjZjciLCJsYXN0cGFnZSI6Im9wZXJhLmNvbS9nZXQvb3BlcmEtZ3giLCJtZWRpdW0iOiJwYSIsInNpdGUiOiJvcGVyYV9jb20iLCJzb3VyY2UiOiJQV05nYW1lcyJ9LCJ1dWlkIjoiYmY4OGY1ZjYtODIyMy00MDZkLTgyNTgtN2FlYzZiZGViYTdmIn0=2⤵
- Downloads MZ/PE file
- Executes dropped EXE
- Enumerates connected drives
- Reads the TCP/IP host and domain name from the registry
- Enumerates system info in registry
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1332 -
C:\Users\Admin\AppData\Local\Temp\7zSCFC6F9E8\installer.exeC:\Users\Admin\AppData\Local\Temp\7zSCFC6F9E8\installer.exe --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Roaming\Opera Software\Opera GX Stable" /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-2.opera.com/ --annotation=channel=Stable --annotation=plat=Win64 --annotation=prod=OperaDesktopGX --annotation=ver=137.0.6036.65 --initial-client-data=0x2a0,0x2a4,0x2a8,0x27c,0x2ac,0x7ff74f3469d8,0x7ff74f3469e8,0x7ff74f3469f83⤵
- Executes dropped EXE
PID:3200
-
-
C:\Users\Admin\AppData\Local\Temp\.opera\7ce91a27-ae0e-403e-bd5c-94568c6ba2c1 Opera GX Installer Temp\installer.exe"C:\Users\Admin\AppData\Local\Temp\.opera\7ce91a27-ae0e-403e-bd5c-94568c6ba2c1 Opera GX Installer Temp\installer.exe" --version3⤵
- Executes dropped EXE
PID:1240
-
-
C:\Users\Admin\AppData\Local\Temp\.opera\7ce91a27-ae0e-403e-bd5c-94568c6ba2c1 Opera GX Installer Temp\opera_package_202610230534561\assistant\Opera_GX_assistant_137.0.6036.65_Setup.exe_sfx.exe"C:\Users\Admin\AppData\Local\Temp\.opera\7ce91a27-ae0e-403e-bd5c-94568c6ba2c1 Opera GX Installer Temp\opera_package_202610230534561\assistant\Opera_GX_assistant_137.0.6036.65_Setup.exe_sfx.exe"3⤵
- Executes dropped EXE
- Writes a Windows system DLL name to a user directory
- System Location Discovery: System Language Discovery
PID:1176
-
-
C:\Users\Admin\AppData\Local\Temp\.opera\7ce91a27-ae0e-403e-bd5c-94568c6ba2c1 Opera GX Installer Temp\opera_package_202610230534561\assistant\assistant_installer.exe"C:\Users\Admin\AppData\Local\Temp\.opera\7ce91a27-ae0e-403e-bd5c-94568c6ba2c1 Opera GX Installer Temp\opera_package_202610230534561\assistant\assistant_installer.exe" --version3⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Enumerates system info in registry
- Suspicious use of WriteProcessMemory
PID:964 -
C:\Users\Admin\AppData\Local\Temp\.opera\7ce91a27-ae0e-403e-bd5c-94568c6ba2c1 Opera GX Installer Temp\opera_package_202610230534561\assistant\assistant_installer.exe"C:\Users\Admin\AppData\Local\Temp\.opera\7ce91a27-ae0e-403e-bd5c-94568c6ba2c1 Opera GX Installer Temp\opera_package_202610230534561\assistant\assistant_installer.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Roaming\Opera Software\Opera GX Stable" /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-2.opera.com/ --annotation=channel=Stable --annotation=plat=Win32 --annotation=prod=OperaDesktopGX --annotation=ver=137.0.6036.65 --initial-client-data=0x24c,0x250,0x254,0x228,0x258,0x116b950,0x116b95c,0x116b9684⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
PID:1876
-
-
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Network
MITRE ATT&CK Enterprise v16
Defense Evasion
Hijack Execution Flow
1DLL Search Order Hijacking
1Masquerading
1Match Legitimate Name or Location
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\.opera\7ce91a27-ae0e-403e-bd5c-94568c6ba2c1 Opera GX Installer Temp\opera_package_202610230534561\additional_file1.tmp
- Size 3.2MB
- SHA256 cd8129a92e34618206b386216a307a768ba8770cb76b4c16a08b35ac23c1228d
- MD5 f5cedf5646d96ac3e4554d058a37de60
- SHA1 2cde51206f36d00f0903ca47b7ba62f1fb24b895
- SHA512 a9318118a7d4181efd23639636c3ad2494f2557efa817bf212d381c764d2e684cef54f9e551b9d2f88fd16ee47ceb6157f87d6894f19be51f2aa9a21528fbed0
- SSDEEP 98304:4kio6wa48dBWXYtQLws6P1bI30vzgtzupl:4NNdtqwsOytyT
- TLSH T1B9F533237E914831D93309334D91F7BA2A7FF1611DA62D5733D80F2E6EE0293672598A
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\.opera\7ce91a27-ae0e-403e-bd5c-94568c6ba2c1 Opera GX Installer Temp\opera_package_202610230534561\assistant\assistant_installer.exe
- Size 2.5MB
- SHA256 d1bebcbda51c7869eebf33275e4b6c3d2b3d37df6fae74a0561cdf2dffb5b293
- MD5 a672623a902efc070296061da956b435
- SHA1 1eb2fc2af2a4d0c2146f9ea6619fc28af53c9981
- SHA512 0ff39f11aa7ae191c8849157e769a2f768f35da3216985dcd91d5ed58c986cee742c7f8170a9b67259667de01fe63182b954dbbc1c3a8421c210380277606082
- SSDEEP 49152:7qjohLttBeTJrKpGDVXCQnpWFbPFEL9ZFv1i1XTEop05MQSv:7NBeVrXV9npIbPFwvi1XT7p6M
- TLSH T1DAC59E01B860D0B5D8563072752CAB3E9E209E068735D9CBDB987CC46FB46E3267B35B
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\.opera\7ce91a27-ae0e-403e-bd5c-94568c6ba2c1 Opera GX Installer Temp\opera_package_202610230534561\assistant\browser_assistant.exe
- Size 5.3MB
- SHA256 ca7d5883a0d16362f9adcc9787d84c3b6d0535b5c8625f44cf80b1a665f6cb63
- MD5 cb353563f277957413f2166c5f29d314
- SHA1 dbce83c341d573f7f3ab4b74d0aa09d646699af2
- SHA512 8b0909c6e8bc3aec0a27f21255e0dbe52d598e5e712c8d4b77af4fef3de2ce084f227047f9d028e3d09937ded94218c0ff41dbc30bc73c67d945ef2e0a7c0944
- SSDEEP 98304:l6666666666666666666666666666666x666666666666666fwwwwwwwwwwwwww3:83Hk/2APJoO2akkOgyeRIK4aVP
- TLSH T17246AF82F7516078C8076571653D7B7B48285D67A722C7EF9AD83CA01BB09C2273EB4E
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\.opera\7ce91a27-ae0e-403e-bd5c-94568c6ba2c1 Opera GX Installer Temp\opera_package_202610230534561\assistant\dbgcore.DLL
- Size 238KB
- SHA256 65a487c32b2b0fdb5a022a7ed54dcf6b6f8271985d50c45c432fc8acb1bdf115
- MD5 5afba74463884e766afb4c41131eee7b
- SHA1 975a56a7b075866fa4d9651e0b2039a7113c6af9
- SHA512 f9169d42824bc88af2a3643afdcecfdab72ce070564b45437ea82f1ee24abf480ac26fba6e59720e8c6fa3bffd8239d2d23c772a2fc869566fc28a6ca7d71deb
- SSDEEP 6144:PgIASx0NdOiN9a1WpPNmiFZr09fgPczwishfCpkIJnwsnpb/xetMUG:lWDFDi7yIJnwA3aMb
- TLSH T126347C61A6C48475CECB11B4724C7A3682FDD2B223E080D392549BECE9656D5AF3C2DF
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\.opera\7ce91a27-ae0e-403e-bd5c-94568c6ba2c1 Opera GX Installer Temp\opera_package_202610230534561\assistant\dbghelp.dll
- Size 589KB
- SHA256 2ec4dcc1209a7f59c9215c5d8f17d7b35a91b2faf84d63ca5666cb6b02e46050
- MD5 7755121a98731dc9006a23e535590f5e
- SHA1 6980c8cc8d8dc711a7fbb0183798ec67ab9698ec
- SHA512 db905cb33cb1b3228aa26d382fa0b9eecdfc89e50a5f734e95915539d497c980fad878c46b6975f538ec4c98a07f910875e4461f5c07f0850c0c6d5653111bcf
- SSDEEP 12288:OUfvs6QXZkBkp5qbhmJLKAilH77ht8YO6EIE:FfvfQXZkBkp5q1mJLKOYOd
- TLSH T110D47D71A9C04074D5EB22B0296DE73987BDF6614B3091CB63444AEDBA607F06F3A397
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\.opera\7ce91a27-ae0e-403e-bd5c-94568c6ba2c1 Opera GX Installer Temp\opera_package_202610230534561\assistant\files_list
- Size 86B
- SHA256 403b9075eb28634cb9000e1029fbfb968274642e3a2356d9fbc18c2ab3c60eaa
- MD5 33151ad85f370b17515cfb991ba64582
- SHA1 c40eabbfd28e0f93f69270958057bdf4c39f2935
- SHA512 15bb590da74a00905c9acc98a4d4d93244a44868d6a148ee08e416cd9a0fd939322ffbaaebc06393aa225a59dd72ef73292b6aa055990e5143e74472222d20ea
- TLSH T15AA01204C00E048C6A802056420085FF26C324041664C280025E04C80412017074A731
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\.opera\7ce91a27-ae0e-403e-bd5c-94568c6ba2c1 Opera GX Installer Temp\opera_package_202610230534561\assistant\msdia140.dll
- Size 2.5MB
- SHA256 261c8cea0752fdbc241c9a02be493cb0dd53b033a686a2c5eb6cc24d7bd74b5a
- MD5 c0034e978ffcb945a8323a0700e746ea
- SHA1 8b74886d0cd0403b1fca38750333917514e2a2af
- SHA512 7395ffcae7cc45bbdf605504dbea80a052d81629f19655f5a5d11afd7ee186099ed619a648a2d9ca1030b82c0da1b94208809ce7b83902e9147bf035fa26307d
- SSDEEP 49152:pbrg2fTIsOXnuf7VSxLrah+N0Pl8xW/e2d5FOGB+p:W2EsOef700h+ilX/
- TLSH T126C56C70E60E8634DA8E2031DC7E6B5F52ADAAAB0B7104C773689E7D5C22CC27735587
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\.opera\7ce91a27-ae0e-403e-bd5c-94568c6ba2c1 Opera GX Installer Temp\opera_package_202610230534561\resources\custom_partner_content.json
- Size 245KB
- SHA256 84bc1efb211c6b45f2906278a36f1414922f994a9611bbee7713ffd4ae21e967
- MD5 f68d0557a8931cf979a21c59c1bae019
- SHA1 e0bfe0f9a947916ebc1fffa52d7dff524e76c2ff
- SHA512 2f0ef8e3e11daf0ad266c4fdc35d1e6e2215556115054f635ef9199b03a6924b1aa989f052461d59b9cdf57ec5eafa918e806fbf2d242f63699a8a65b0328ecc
- SSDEEP 3072:iwK+GwaiHEaacjK+eMuhKS1d/ttUYD6W6Z2NrwYrVZCs0iUCabiKfAu/wX2OCy:XGuE/c9L+1btUYOnkrPVZCCUCabNU
- TLSH T1BA349D7BD4090CE327A561E68879611EEC21D26B0CE97C257B4C254C0F9ED6F25BC2BE
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\7zSCFC6F9E8\installer.exe
- Size 9.2MB
- SHA256 407955bd8dc43601214a22c6696f6db8da9352eb0c13b38fbeb780a90755fc52
- MD5 8f27cff13792ab0e35a8b085e4280c27
- SHA1 9df2ba468a8e9f2cec09878363909d1695f8d7b7
- SHA512 492f29f3032b2acbbd06904b0f875a86f10a31402f39ea20c6481b1bea2797856aee7fe11d7f7d2338f01539f3145122019a7872f6d10c07170ab6a918abb464
- SSDEEP 98304:e/RAqHJe0Kj80vsfk8uLrUqtkSRNIj7/bgkxFBI3++wteEm/:URdHJQjkk8mNi7zy3+Bq/
- TLSH T198A69D53F3EA01E8D06FCA748B7A5232A9357C464B34A2DF0A943A250E75FD45B3DB21
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Roaming\Opera Software\Opera GX Stable\Crash Reports\settings.dat
- Size 40B
- SHA256 b671ac19dce744425b353cf6aa3ed2032e29860040b959dd3d6210d56853afe9
- MD5 6e7493f36a069e55d0568ec3aeb4ce38
- SHA1 a2872db558e71c520dd38dda84c5d83654fa34e0
- SHA512 2b112645e7621308c713398cb2b39bda9a1d22cc1c8b9f02d48255f7d687d64d433176ffde726ffd986e6b5e517fa2a27ad2ad523ee99ff813194984725daaf1
- MD5 SHA1 SHA512