Analysis
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max time kernel
120s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
20-05-2024 18:53
Behavioral task
behavioral1
Sample
WinLocker(Don't Open).exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
WinLocker(Don't Open).exe
Resource
win10v2004-20240508-en
General
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Target
WinLocker(Don't Open).exe
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Size
397KB
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MD5
98c556fc3dc4f8a3b00304c4a248c004
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SHA1
4903613f133857158d57bba539b6cc7bdf00c229
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SHA256
a0ed055bfcef75af4bb6a23261c9864be7eb347a801b41e8a31a13e3fcbd9233
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SHA512
a1b600076a2501be86532a96ef9d613c73c9d43a12cc21edf51709d5dd49d2dfeafd3cacac315d8c8486cd79f10288378cf82cf377c1f2600f757a0ce971fe25
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SSDEEP
6144:MLy84u9nSO2GjZkD10BIY3rb1YfBdfpoZ3u/Ht52w6JSeiFPXf3S:Y+u9nx2GjMY3XKfd/H/9PPS
Malware Config
Signatures
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ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
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ModiLoader Second Stage 4 IoCs
Processes:
resource yara_rule behavioral1/memory/1288-1-0x0000000000400000-0x000000000046A000-memory.dmp modiloader_stage2 behavioral1/memory/1288-2-0x0000000000400000-0x000000000046A000-memory.dmp modiloader_stage2 behavioral1/memory/1288-4-0x0000000000400000-0x000000000046A000-memory.dmp modiloader_stage2 behavioral1/memory/1288-7-0x0000000000400000-0x000000000046A000-memory.dmp modiloader_stage2 -
Modifies Installed Components in the registry 2 TTPs 1 IoCs
Processes:
explorer.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Active Setup\Installed Components explorer.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
WinLocker(Don't Open).exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\WinLocker(Don't Open).exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\WinLocker(Don't Open).exe" WinLocker(Don't Open).exe -
Modifies registry class 5 IoCs
Processes:
explorer.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_Classes\Local Settings explorer.exe Key created \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell explorer.exe Key created \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff explorer.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
WinLocker(Don't Open).exepid process 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe 1288 WinLocker(Don't Open).exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
explorer.exepid process 2548 explorer.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
explorer.exedescription pid process Token: SeShutdownPrivilege 2548 explorer.exe Token: SeShutdownPrivilege 2548 explorer.exe Token: SeShutdownPrivilege 2548 explorer.exe Token: SeShutdownPrivilege 2548 explorer.exe Token: SeShutdownPrivilege 2548 explorer.exe Token: SeShutdownPrivilege 2548 explorer.exe Token: SeShutdownPrivilege 2548 explorer.exe Token: SeShutdownPrivilege 2548 explorer.exe Token: SeShutdownPrivilege 2548 explorer.exe Token: SeShutdownPrivilege 2548 explorer.exe Token: SeShutdownPrivilege 2548 explorer.exe Token: SeShutdownPrivilege 2548 explorer.exe -
Suspicious use of FindShellTrayWindow 28 IoCs
Processes:
explorer.exepid process 2548 explorer.exe 2548 explorer.exe 2548 explorer.exe 2548 explorer.exe 2548 explorer.exe 2548 explorer.exe 2548 explorer.exe 2548 explorer.exe 2548 explorer.exe 2548 explorer.exe 2548 explorer.exe 2548 explorer.exe 2548 explorer.exe 2548 explorer.exe 2548 explorer.exe 2548 explorer.exe 2548 explorer.exe 2548 explorer.exe 2548 explorer.exe 2548 explorer.exe 2548 explorer.exe 2548 explorer.exe 2548 explorer.exe 2548 explorer.exe 2548 explorer.exe 2548 explorer.exe 2548 explorer.exe 2548 explorer.exe -
Suspicious use of SendNotifyMessage 18 IoCs
Processes:
explorer.exepid process 2548 explorer.exe 2548 explorer.exe 2548 explorer.exe 2548 explorer.exe 2548 explorer.exe 2548 explorer.exe 2548 explorer.exe 2548 explorer.exe 2548 explorer.exe 2548 explorer.exe 2548 explorer.exe 2548 explorer.exe 2548 explorer.exe 2548 explorer.exe 2548 explorer.exe 2548 explorer.exe 2548 explorer.exe 2548 explorer.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
WinLocker(Don't Open).exedescription pid process target process PID 1288 wrote to memory of 2548 1288 WinLocker(Don't Open).exe explorer.exe PID 1288 wrote to memory of 2548 1288 WinLocker(Don't Open).exe explorer.exe PID 1288 wrote to memory of 2548 1288 WinLocker(Don't Open).exe explorer.exe PID 1288 wrote to memory of 2548 1288 WinLocker(Don't Open).exe explorer.exe -
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.
Processes
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C:\Users\Admin\AppData\Local\Temp\WinLocker(Don't Open).exe"C:\Users\Admin\AppData\Local\Temp\WinLocker(Don't Open).exe"1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1288 -
C:\Windows\explorer.exe"C:\Windows\explorer.exe"2⤵
- Modifies Installed Components in the registry
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2548
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C:\Windows\explorer.exeexplorer.exe1⤵PID:2760