Analysis
- user interaction
yes - max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
14/08/2026, 02:44
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
DelayOptimizer.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
12 signatures
150 seconds
Behavioral task
behavioral2
Sample
delaytweaks.pyc
Resource
win10v2004-20260513-en
windows10-2004-x64
13 signatures
150 seconds
General
- Target delaytweaks.pyc
- Size 104KB
- Sample260814-c77cdsszes
- SHA256 5bf85273c0c6c91b7ebd75f75b05ca7e47a0320a04ee73e2f8d9286e349a393d
- MD5 ba3ac7788eed531404c0df5095131f39
- SHA1 aa659b108e06e7023d28c158bb6764c4987fc221
- SHA512 bdd382f8e1ed26a4a8151eeef7eee50bca4108ecaf4868e5d53ebfe82a5a3f1aa1789a052788bf2351e9a363ae322f05c0f8b4a55d6671914a2d34e92c907919
- SSDEEP 1536:gtc4NKaYqq3L7Cr+cOBXotYsNEPc/l2PjZuKBCmIAPGJbJQ23palq4miUWbKGpOf:gBy+WPkQPPcZ33N6d2
- TLSH T1D5A3B556A8309513FFA4B139C0EA8650E33939C6B325C7B3725E587A7CC61ADCD66B0C
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Executes a command shell one-liner 1 TTPs 1 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
pid Process 2452 cmd.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 IEXPLORE.EXE - Modifies Internet Explorer Phishing Filter 1 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000\Software\Microsoft\Internet Explorer\PhishingFilter iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000\SOFTWARE\Microsoft\Internet Explorer\PhishingFilter\ClientSupported_MigrationTime = 476005d554e3dc01 iexplore.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Key created \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000\Software\Microsoft\Internet Explorer\RepId iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000\SOFTWARE\Microsoft\Internet Explorer\Main\NotifyDownloadComplete = "yes" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000\SOFTWARE\Microsoft\Internet Explorer\Main\DownloadWindowPlacement = 2c0000000000000000000000ffffffffffffffffffffffffffffffff50020000f0000000d0040000d0020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{1BB6185B-978A-11F1-B40A-DA48EC94345F} = "0" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000\SOFTWARE\Microsoft\Internet Explorer\MINIE\TabBandWidth = "677" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000\Software\Microsoft\Internet Explorer\MINIE iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000\SOFTWARE\Microsoft\Internet Explorer\RepId\PublicId = "{D7159DB3-C049-408A-A301-00C4F3C5B6A2}" iexplore.exe - Modifies registry class 4 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000_Classes\Local Settings cmd.exe Key created \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000_Classes\Local Settings OpenWith.exe Key created \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000_Classes\Local Settings iexplore.exe Key created \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000_Classes\Local Settings OpenWith.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2748 OpenWith.exe - Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 2264 iexplore.exe 2264 iexplore.exe - Suspicious use of SetWindowsHookEx 48 IoCs
pid Process 2748 OpenWith.exe 2748 OpenWith.exe 2748 OpenWith.exe 2748 OpenWith.exe 2748 OpenWith.exe 2748 OpenWith.exe 2748 OpenWith.exe 2748 OpenWith.exe 2748 OpenWith.exe 2748 OpenWith.exe 2748 OpenWith.exe 2748 OpenWith.exe 2748 OpenWith.exe 2748 OpenWith.exe 2748 OpenWith.exe 2748 OpenWith.exe 2748 OpenWith.exe 2748 OpenWith.exe 2748 OpenWith.exe 2748 OpenWith.exe 2748 OpenWith.exe 2748 OpenWith.exe 2748 OpenWith.exe 2748 OpenWith.exe 2748 OpenWith.exe 2748 OpenWith.exe 2748 OpenWith.exe 2748 OpenWith.exe 2748 OpenWith.exe 2748 OpenWith.exe 2748 OpenWith.exe 2748 OpenWith.exe 2748 OpenWith.exe 2748 OpenWith.exe 2748 OpenWith.exe 2748 OpenWith.exe 2748 OpenWith.exe 2748 OpenWith.exe 2748 OpenWith.exe 2748 OpenWith.exe 2748 OpenWith.exe 2748 OpenWith.exe 2748 OpenWith.exe 2264 iexplore.exe 2264 iexplore.exe 956 IEXPLORE.EXE 956 IEXPLORE.EXE 3524 OpenWith.exe - Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 2748 wrote to memory of 2264 2748 OpenWith.exe 87 PID 2264 wrote to memory of 956 2264 iexplore.exe 89 - Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
- Uses Volume Shadow Copy WMI provider
The Volume Shadow Copy service is used to manage backups/snapshots.
- Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
-
C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\delaytweaks.pyc1⤵
- Executes a command shell one-liner
- Modifies registry class
PID:2452
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C:\Windows\system32\OpenWith.exeC:\Windows\system32\OpenWith.exe -Embedding1⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2748 -
C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe" C:\Users\Admin\AppData\Local\Temp\delaytweaks.pyc2⤵
- Modifies Internet Explorer Phishing Filter
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2264 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2264 CREDAT:17410 /prefetch:23⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:956
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C:\Windows\system32\OpenWith.exeC:\Windows\system32\OpenWith.exe -Embedding1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:3524