Analysis
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max time kernel
145s -
max time network
125s -
platform
windows7_x64 -
resource
win7v20210408 -
submitted
15-05-2021 04:12
Static task
static1
Behavioral task
behavioral1
Sample
562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cef.exe
Resource
win7v20210408
General
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Target
562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cef.exe
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Size
1.7MB
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MD5
a975d2b0d2e26f4fcf6d9f8be249318d
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SHA1
c88688c1e23dfe20b6f82eb45b35995834d56e95
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SHA256
562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cef
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SHA512
6559492f58cc31c71e3c49905a5b26d19cd078935d91ba7f88f0ee2504618119b93b65e62469e2a1dc684bbf15c341222224b7a671a11bc48c8cab1544432af0
Malware Config
Signatures
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Executes dropped EXE 2 IoCs
Processes:
562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cefSrv.exeDesktopLayer.exepid process 1156 562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cefSrv.exe 2032 DesktopLayer.exe -
Processes:
resource yara_rule \Users\Admin\AppData\Local\Temp\562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cefSrv.exe upx C:\Users\Admin\AppData\Local\Temp\562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cefSrv.exe upx C:\Users\Admin\AppData\Local\Temp\562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cefSrv.exe upx \Program Files (x86)\Microsoft\DesktopLayer.exe upx C:\Program Files (x86)\Microsoft\DesktopLayer.exe upx C:\Program Files (x86)\Microsoft\DesktopLayer.exe upx behavioral1/memory/1156-75-0x0000000000400000-0x000000000042E000-memory.dmp upx -
Loads dropped DLL 2 IoCs
Processes:
562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cef.exe562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cefSrv.exepid process 748 562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cef.exe 1156 562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cefSrv.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 15 IoCs
Processes:
562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cef.exepid process 748 562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cef.exe 748 562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cef.exe 748 562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cef.exe 748 562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cef.exe 748 562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cef.exe 748 562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cef.exe 748 562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cef.exe 748 562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cef.exe 748 562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cef.exe 748 562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cef.exe 748 562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cef.exe 748 562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cef.exe 748 562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cef.exe 748 562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cef.exe 748 562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cef.exe -
Drops file in Program Files directory 3 IoCs
Processes:
562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cefSrv.exedescription ioc process File opened for modification C:\Program Files (x86)\Microsoft\pxD1EF.tmp 562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cefSrv.exe File created C:\Program Files (x86)\Microsoft\DesktopLayer.exe 562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cefSrv.exe File opened for modification C:\Program Files (x86)\Microsoft\DesktopLayer.exe 562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cefSrv.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Processes:
iexplore.exeIEXPLORE.EXEdescription ioc process Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "327238513" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Zoom iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\LowRegistry iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{32C60301-B56D-11EB-BDFA-E2B03292F00A} = "0" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\GPU iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\IETld\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\IntelliForms iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\InternetRegistry iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\PageSetup iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
DesktopLayer.exepid process 2032 DesktopLayer.exe 2032 DesktopLayer.exe 2032 DesktopLayer.exe 2032 DesktopLayer.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
iexplore.exepid process 1940 iexplore.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
Processes:
562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cef.exeiexplore.exeIEXPLORE.EXEpid process 748 562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cef.exe 748 562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cef.exe 1940 iexplore.exe 1940 iexplore.exe 1404 IEXPLORE.EXE 1404 IEXPLORE.EXE 1404 IEXPLORE.EXE 1404 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 16 IoCs
Processes:
562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cef.exe562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cefSrv.exeDesktopLayer.exeiexplore.exedescription pid process target process PID 748 wrote to memory of 1156 748 562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cef.exe 562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cefSrv.exe PID 748 wrote to memory of 1156 748 562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cef.exe 562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cefSrv.exe PID 748 wrote to memory of 1156 748 562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cef.exe 562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cefSrv.exe PID 748 wrote to memory of 1156 748 562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cef.exe 562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cefSrv.exe PID 1156 wrote to memory of 2032 1156 562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cefSrv.exe DesktopLayer.exe PID 1156 wrote to memory of 2032 1156 562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cefSrv.exe DesktopLayer.exe PID 1156 wrote to memory of 2032 1156 562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cefSrv.exe DesktopLayer.exe PID 1156 wrote to memory of 2032 1156 562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cefSrv.exe DesktopLayer.exe PID 2032 wrote to memory of 1940 2032 DesktopLayer.exe iexplore.exe PID 2032 wrote to memory of 1940 2032 DesktopLayer.exe iexplore.exe PID 2032 wrote to memory of 1940 2032 DesktopLayer.exe iexplore.exe PID 2032 wrote to memory of 1940 2032 DesktopLayer.exe iexplore.exe PID 1940 wrote to memory of 1404 1940 iexplore.exe IEXPLORE.EXE PID 1940 wrote to memory of 1404 1940 iexplore.exe IEXPLORE.EXE PID 1940 wrote to memory of 1404 1940 iexplore.exe IEXPLORE.EXE PID 1940 wrote to memory of 1404 1940 iexplore.exe IEXPLORE.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cef.exe"C:\Users\Admin\AppData\Local\Temp\562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cef.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:748 -
C:\Users\Admin\AppData\Local\Temp\562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cefSrv.exeC:\Users\Admin\AppData\Local\Temp\562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cefSrv.exe2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1156 -
C:\Program Files (x86)\Microsoft\DesktopLayer.exe"C:\Program Files (x86)\Microsoft\DesktopLayer.exe"3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2032 -
C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe"4⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1940 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1940 CREDAT:275457 /prefetch:25⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1404
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Program Files (x86)\Microsoft\DesktopLayer.exeMD5
ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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C:\Program Files (x86)\Microsoft\DesktopLayer.exeMD5
ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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C:\Users\Admin\AppData\Local\Temp\562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cefSrv.exeMD5
ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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C:\Users\Admin\AppData\Local\Temp\562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cefSrv.exeMD5
ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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\Program Files (x86)\Microsoft\DesktopLayer.exeMD5
ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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\Users\Admin\AppData\Local\Temp\562f7ea89d02b702bd9d4c890fa087bafcb6b6650c05a8883661e59d7e9e9cefSrv.exeMD5
ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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memory/748-73-0x0000000000400000-0x00000000008E0000-memory.dmpFilesize
4.9MB
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memory/748-78-0x00000000001E0000-0x00000000001E1000-memory.dmpFilesize
4KB
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memory/748-60-0x0000000075451000-0x0000000075453000-memory.dmpFilesize
8KB
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memory/1156-75-0x0000000000400000-0x000000000042E000-memory.dmpFilesize
184KB
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memory/1156-74-0x0000000000230000-0x000000000023F000-memory.dmpFilesize
60KB
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memory/1156-62-0x0000000000000000-mapping.dmp
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memory/1404-79-0x0000000000000000-mapping.dmp
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memory/1940-72-0x0000000000000000-mapping.dmp
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memory/1940-80-0x00000000050D0000-0x00000000050D1000-memory.dmpFilesize
4KB
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memory/2032-71-0x0000000000240000-0x0000000000241000-memory.dmpFilesize
4KB
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memory/2032-67-0x0000000000000000-mapping.dmp