Analysis
- max time kernel
148s - max time network
134s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
07/09/2026, 12:34
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
OperaSetup.exe
Resource
win10v2004-20260513-en
7 signatures
150 seconds
General
- Target OperaSetup.exe
- Size 3.1MB
- Sample260907-prq2pavves
- SHA256 daa5bb9a68e510694897ff21a5e374aa49386ba25ed8ed3a51593f09bc7537ab
- MD5 620a5bf00bfca88f424d793dc8f67309
- SHA1 34677b39386cd296ab36e41e58c7eb33fe13788b
- SHA512 b87886fde2aef48d44f5ae0ac44d8188e4d479b2418097b8aec946a438a95dca0a8bee0bda7befe3699d72a37fda4cc9c4e56d985ca0f3aab10494baebd27e28
- SSDEEP 98304:DAZSO9rr3x/p5yZac5Mk1sMNYPjTueXYKrNU/+0sWPda:2TnxxsPNOuSRUyWPda
- TLSH T1CBE523127B40E471D63312320F5AF7B8967DF8221F268B57B394295F8F719819A26F0B
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 3 IoCs
pid Process 4200 installer.exe 940 installer.exe 4672 installer.exe - Reads user/profile data of web browsers 3 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.
description ioc Process File opened (read-only) \??\E: installer.exe File opened (read-only) \??\F: installer.exe - System Location Discovery: System Language Discovery 1 TTPs 1 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 OperaSetup.exe - Enumerates system info in registry 2 TTPs 2 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 - Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4200 installer.exe 4200 installer.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1152 wrote to memory of 4200 1152 OperaSetup.exe 88 PID 4200 wrote to memory of 940 4200 installer.exe 89 PID 4200 wrote to memory of 4672 4200 installer.exe 90
Processes
-
C:\Users\Admin\AppData\Local\Temp\OperaSetup.exe"C:\Users\Admin\AppData\Local\Temp\OperaSetup.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1152 -
C:\Users\Admin\AppData\Local\Temp\7zS0841D289\installer.exeC:\Users\Admin\AppData\Local\Temp\7zS0841D289\installer.exe --server-tracking-blob=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2⤵
- Executes dropped EXE
- Enumerates connected drives
- Enumerates system info in registry
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4200 -
C:\Users\Admin\AppData\Local\Temp\7zS0841D289\installer.exeC:\Users\Admin\AppData\Local\Temp\7zS0841D289\installer.exe --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Roaming\Opera Software\Opera Stable" /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=Win64 --annotation=prod=OperaDesktop --annotation=ver=135.0.5973.92 --initial-client-data=0x2b4,0x2b8,0x2bc,0x290,0x2c0,0x7ff6d68c2608,0x7ff6d68c2618,0x7ff6d68c26283⤵
- Executes dropped EXE
PID:940
-
-
C:\Users\Admin\AppData\Local\Temp\.opera\fc2d9e29-0298-4ba0-83e9-6882c3252f44 Opera Installer Temp\installer.exe"C:\Users\Admin\AppData\Local\Temp\.opera\fc2d9e29-0298-4ba0-83e9-6882c3252f44 Opera Installer Temp\installer.exe" --version3⤵
- Executes dropped EXE
PID:4672
-
-
Network
MITRE ATT&CK Enterprise v16
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\7zS0841D289\installer.exe
- Size 8.3MB
- SHA256 62b5c5cfda3377ef4f252b3262c8c4b72b66cc44aeb1f106ab7d56d3a89921e1
- MD5 3bc6fea4389bf05337e8589728ca4ccd
- SHA1 b69595c415dff086d2bf5acb391a7fd6b56bb441
- SHA512 8dc5da9d5e3ffa7ed46bfbe5d0c11ef91053c46f65805733cc54ed723945cc6bca1b73dea451474b96e148846d17550934b44a6f3a163144c9b5c48a505d05bf
- SSDEEP 98304:khyvRBwPUbk0+R1/ZKIZpna1xYg/ZYNY8AFl:Ay5Btw0+RRCYOZXFl
- TLSH T11F967C53F3A601E8D06FDA748B7A523299757C464B30A3EF0A943A251E75FD46B3CB20
- MD5 SHA1 SHA512 SSDEEP TLSH