Analysis
- user interaction
yes - 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
27/10/2026, 17:44
Static task
static1
Behavioral task
behavioral1
Sample
OperaGXSetup.exe
Resource
win10v2004-20260911-en
Behavioral task
behavioral2
Sample
OperaGXSetup.exe
Resource
win11ltsc2024-20260911-en
General
- Target OperaGXSetup.exe
- Size 4.0MB
- Sample261027-wbnpyseb73
- SHA256 a7c0959aff8c58376badb8aea7d93b125ba29e05044bd476a9534ce8f343d6dd
- MD5 8d1e32b448422175e12a3dc1a6f18b5f
- SHA1 d85bab10002fb5ef782eb0da65aa7cc57fe724ce
- SHA512 268f8df1ed87fcd24a150e9630208ca649686b26f6653c3182d689b3259f03e3f0aaafdf533b47912bb919ed02589ffe5f10c8fcbee58b83a5523466515d1415
- SSDEEP 98304:uA1K0gwkdLllHPT+rxB9c2mDkfTOKtZXYjPKXEaaHxG2PUmf9M4Wh:+drYxB9OkfT7jXY2XEaaHx59U
- TLSH T16A1633257B858076D5A325324FA8FB6D9A3DBA741F62069B37C81E6FDF30181A530F42
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Downloads MZ/PE file 1 IoCs
flow pid Process 19 3852 installer.exe - Executes dropped EXE 6 IoCs
pid Process 3852 installer.exe 1116 installer.exe 256 installer.exe 5652 Opera_GX_assistant_138.0.6044.45_Setup.exe_sfx.exe 3052 assistant_installer.exe 2320 assistant_installer.exe - Loads dropped DLL 4 IoCs
pid Process 3052 assistant_installer.exe 3052 assistant_installer.exe 2320 assistant_installer.exe 2320 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\492d13c9-9cf5-4802-a444-1fb3c4df8e36 Opera GX Installer Temp\opera_package_202610271745111\assistant\dbghelp.dll Opera_GX_assistant_138.0.6044.45_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.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Opera_GX_assistant_138.0.6044.45_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 3852 installer.exe 3852 installer.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4572 wrote to memory of 3852 4572 OperaGXSetup.exe 89 PID 3852 wrote to memory of 1116 3852 installer.exe 90 PID 3852 wrote to memory of 256 3852 installer.exe 91 PID 3852 wrote to memory of 5652 3852 installer.exe 92 PID 3852 wrote to memory of 3052 3852 installer.exe 93 PID 3052 wrote to memory of 2320 3052 assistant_installer.exe 94
Processes
-
C:\Users\Admin\AppData\Local\Temp\OperaGXSetup.exe"C:\Users\Admin\AppData\Local\Temp\OperaGXSetup.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4572 -
C:\Users\Admin\AppData\Local\Temp\7zSCD1CF859\installer.exeC:\Users\Admin\AppData\Local\Temp\7zSCD1CF859\installer.exe --server-tracking-blob=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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:3852 -
C:\Users\Admin\AppData\Local\Temp\7zSCD1CF859\installer.exeC:\Users\Admin\AppData\Local\Temp\7zSCD1CF859\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=138.0.6044.45 --initial-client-data=0x2a0,0x2a4,0x2a8,0x27c,0x2ac,0x7ff69dc002d8,0x7ff69dc002e8,0x7ff69dc002f83⤵
- Executes dropped EXE
PID:1116
-
-
C:\Users\Admin\AppData\Local\Temp\.opera\492d13c9-9cf5-4802-a444-1fb3c4df8e36 Opera GX Installer Temp\installer.exe"C:\Users\Admin\AppData\Local\Temp\.opera\492d13c9-9cf5-4802-a444-1fb3c4df8e36 Opera GX Installer Temp\installer.exe" --version3⤵
- Executes dropped EXE
PID:256
-
-
C:\Users\Admin\AppData\Local\Temp\.opera\492d13c9-9cf5-4802-a444-1fb3c4df8e36 Opera GX Installer Temp\opera_package_202610271745111\assistant\Opera_GX_assistant_138.0.6044.45_Setup.exe_sfx.exe"C:\Users\Admin\AppData\Local\Temp\.opera\492d13c9-9cf5-4802-a444-1fb3c4df8e36 Opera GX Installer Temp\opera_package_202610271745111\assistant\Opera_GX_assistant_138.0.6044.45_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:5652
-
-
C:\Users\Admin\AppData\Local\Temp\.opera\492d13c9-9cf5-4802-a444-1fb3c4df8e36 Opera GX Installer Temp\opera_package_202610271745111\assistant\assistant_installer.exe"C:\Users\Admin\AppData\Local\Temp\.opera\492d13c9-9cf5-4802-a444-1fb3c4df8e36 Opera GX Installer Temp\opera_package_202610271745111\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:3052 -
C:\Users\Admin\AppData\Local\Temp\.opera\492d13c9-9cf5-4802-a444-1fb3c4df8e36 Opera GX Installer Temp\opera_package_202610271745111\assistant\assistant_installer.exe"C:\Users\Admin\AppData\Local\Temp\.opera\492d13c9-9cf5-4802-a444-1fb3c4df8e36 Opera GX Installer Temp\opera_package_202610271745111\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=138.0.6044.45 --initial-client-data=0x24c,0x250,0x254,0x228,0x258,0x4ab558,0x4ab564,0x4ab5704⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
PID:2320
-
-
-
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\492d13c9-9cf5-4802-a444-1fb3c4df8e36 Opera GX Installer Temp\opera_package_202610271745111\assistant\Opera_GX_assistant_138.0.6044.45_Setup.exe_sfx.exe
- Size 3.2MB
- SHA256 ff87215ff4c75e1f741fae5b0d7d00b933c2e967e70ce31431d898a4de998131
- MD5 9aee4a436778bba572e429bfb8f10263
- SHA1 6a1ab229ae3ecb064596f1b694c02ff18fcff352
- SHA512 a9e516b5a9d90e0e8a328a0078bdbf782734b05af65ebd7f43e493ca2d962e44c042d413e4d15ef352cb2163725190b671909d32fc436a941a89abc0b090628f
- SSDEEP 98304:Tkio8qAxndcSJFb/9fYTFDAJqOrmDGUy6LlHdyAI9n7xFYaIXb:TlqAxn/F79wTFDoqG8XyW9o1xiL
- TLSH T12FF53352AA94C4B0D52315374CE9B3FE5AFFF6617EA41B9F23880B4E9FB05D2981041B
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\.opera\492d13c9-9cf5-4802-a444-1fb3c4df8e36 Opera GX Installer Temp\opera_package_202610271745111\assistant\assistant_installer.exe
- Size 2.5MB
- SHA256 677a5ca267c49bcd4e39cba49ad0a7e2f489523a070f1b113512497f5d489d76
- MD5 704647b8c3db95f4f8ef554eb2849a2e
- SHA1 3669a684c5733fee82b8235d7347c987885c4a99
- SHA512 4215c8afc883d7cab206094493c551c06b2128b0ec7ff5ac388e05d8168cc3257fd2cf73c7a87b5b0b5fad180f3674789c88682a48e3f87f150bde6251be954b
- SSDEEP 49152:/5zJ7lRnxcSTHGKbmaO8b2j3R2I0Ya9NF7ayPsoWcqCxlv8RUjQa8jN40:/XxxDGlafQ3R10p93fPxWc3xlvcUpCNp
- TLSH T140C59E01786090B4D8563072711CBB3E9E605E169735DDCBEBE8BCC46BB46E2263B35B
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\.opera\492d13c9-9cf5-4802-a444-1fb3c4df8e36 Opera GX Installer Temp\opera_package_202610271745111\assistant\browser_assistant.exe
- Size 5.3MB
- SHA256 8dbcc04ba61e81430dd5ced37d93e9a0a4d9c07cdbf69d1acd1a52cb3994e325
- MD5 2ca9049b8046875e0c2d9b5d2d58d12e
- SHA1 f0d13b562b7d49763d644a9233287bafb711bedd
- SHA512 697eb65aab4ae2c556fae06932d6a8d553ffce692f50c7a8aad7345c6eb0f78313849c2b172ed9ef38794e4a1d05457cc8ac52e3ded96f6f306bba53609e7996
- SSDEEP 98304:i6666666666666666666666666666666x666666666666666fwwwwwwwwwwwwwwI:XuwTTmYkJumW2tbE6smmPFGoT3sz+l
- TLSH T1E346AE42E71120B8CC066571643C6B7B8C285D63AB2187DF9BD87CA12BB45C2367FB5E
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\.opera\492d13c9-9cf5-4802-a444-1fb3c4df8e36 Opera GX Installer Temp\opera_package_202610271745111\assistant\dbgcore.DLL
- Size 238KB
- SHA256 318609aa3f5a6022465532846da2d8e0beda1e12c6b1be3886fecd395cf2081c
- MD5 cb0747323f4dd2a96fc707d32aa566ed
- SHA1 6109ee034ede6c05051cca5fa8c3d6ae4a7babec
- SHA512 d96f4fd14547fbbd8e022c49854e26160daa71a43ef60318f89ff4a9f9692f3e467877a05455e03bf5bb35ccc658b65755b31a0569f27640fb852d646d793f33
- SSDEEP 6144:ggIASx0NdOiN9a1WpPNmiFZr09fgPczwishfCpkIJnwsnpb/xetMf:gWDFDi7yIJnwA3aMf
- TLSH T14E347D61A6C48475CECB11B4724C7A3682FDD2B223E080D392549BECE9656D5AF3C2DF
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\.opera\492d13c9-9cf5-4802-a444-1fb3c4df8e36 Opera GX Installer Temp\opera_package_202610271745111\assistant\dbghelp.dll
- Size 589KB
- SHA256 762839a3070556ef17c36f291b733494ab5adc56a0c7587192c4896b320cc3d8
- MD5 3e7647bf24156d135f863fb25e4274e5
- SHA1 01df9f8f3f165a98980dc11cc8d74f35288414ca
- SHA512 d508c140c426488260e285fd66a85fd29b0bf30fd4e6315e721e0da5dddb62d77d0c18acf633be4a167d7475d87b495cd63b5d49957f1ffaa996d61feeef751a
- SSDEEP 12288:jUfvs6QXZkBkp5qbhmJLKAilH77ht8YO6EI6:wfvfQXZkBkp5q1mJLKOYOz
- TLSH T135D47D71A9C04074D5EB22B0296DE73987BDF6614B3091CB63444AEDBA607F06F3A397
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\.opera\492d13c9-9cf5-4802-a444-1fb3c4df8e36 Opera GX Installer Temp\opera_package_202610271745111\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\492d13c9-9cf5-4802-a444-1fb3c4df8e36 Opera GX Installer Temp\opera_package_202610271745111\assistant\msdia140.dll
- Size 2.5MB
- SHA256 237adeb24922202177ef0c8d40750fe72b6490596263d4c9bcb4459a47cce4bd
- MD5 9c63dc3e5773b9f38ab7aaef07142154
- SHA1 c131f526711ded6c27f06e36385419fae180e87b
- SHA512 0d78989e81862c79438c022cb09807120577681161a8040d0a2df7404a48f06e5f78b76cf5a276e690ad69ffc218f45a8a7a157089a227c2246b73c0659eb2f3
- SSDEEP 49152:cbrg2fTIsOXnuf7VSxLrah+N0Pl8xW/e2d5FOGB+p:X2EsOef700h+ilX/
- TLSH T188C56C70E60E8634DA8E2031DC7E6B5F52ADAAAB0B7104C773689E7D5C22CC27735587
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\.opera\492d13c9-9cf5-4802-a444-1fb3c4df8e36 Opera GX Installer Temp\opera_package_202610271745111\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\7zSCD1CF859\installer.exe
- Size 9.2MB
- SHA256 fa1023f728eaaf0fa53b6b75813295bc376bc6a96c3ecf7829861bf4bc1dea59
- MD5 9ea3b0ac1d0eb4cc9ae5d42fe1d2910c
- SHA1 509e002093e5c9e1e2b57ae139276bc6463b98a7
- SHA512 ffd7cec8387a520b8ad5acc1113c34819ec2f008e5369021fdad53ee667abd5f5f1ce6936f050ff25f1fe7227383b2da1e79ef871c3b0edc33f610d935c4d0dd
- SSDEEP 98304:9vx2ngpeGjea4Lh2IRNJKpqDIDtdSiTcEzFBI3++wteEmM:Rx2ngMVaNuK3tT83+BqM
- TLSH T112A69D53F3A611E8D0AFCA748B7A563299357C464B34A3EF0A943A250E75FD45B3CB20
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Roaming\Opera Software\Opera GX Stable\Crash Reports\settings.dat
- Size 40B
- SHA256 60cfe70cb13404d4fd07be1f7bca1ad75bfbba539aae930e31230fa8d34c649b
- MD5 873b5cead4a3dd06614d8e8bacbe640c
- SHA1 6becc796cb5dd65996ae9a27f40d884a41768afb
- SHA512 2d680c02300ac7414988cd168577cddca587d3ae41643a2764351a2be97c8e9e5eaea92d49d7f67f9790893c2c68adb743aadc60066592a9e9834e865f66ff45
- MD5 SHA1 SHA512