Analysis
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max time kernel
120s -
max time network
139s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
13-05-2021 12:05
Static task
static1
Behavioral task
behavioral1
Sample
d89720ade957d93beb913d9be72dc69d2147f5772ece01b2cd97e5208b98f3e7.exe
Resource
win7v20210410
General
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Target
d89720ade957d93beb913d9be72dc69d2147f5772ece01b2cd97e5208b98f3e7.exe
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Size
116KB
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MD5
78fd901508f5ab965aa00b6962d767df
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SHA1
67c5798691e4f6549eb7e9bbdef375fa2fdcbd14
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SHA256
d89720ade957d93beb913d9be72dc69d2147f5772ece01b2cd97e5208b98f3e7
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SHA512
6879bff3b313455c4cff0bcab6181f66528fda97b559c5e5e52b5694e32de2ca4750a0fc752da7203a7f5caef827dd0d37c441a6c2a327f49fea6fd2a0e1fd07
Malware Config
Signatures
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Executes dropped EXE 2 IoCs
Processes:
d89720ade957d93beb913d9be72dc69d2147f5772ece01b2cd97e5208b98f3e7Srv.exeDesktopLayer.exepid process 2032 d89720ade957d93beb913d9be72dc69d2147f5772ece01b2cd97e5208b98f3e7Srv.exe 1472 DesktopLayer.exe -
Processes:
resource yara_rule \Users\Admin\AppData\Local\Temp\d89720ade957d93beb913d9be72dc69d2147f5772ece01b2cd97e5208b98f3e7Srv.exe upx C:\Users\Admin\AppData\Local\Temp\d89720ade957d93beb913d9be72dc69d2147f5772ece01b2cd97e5208b98f3e7Srv.exe upx C:\Users\Admin\AppData\Local\Temp\d89720ade957d93beb913d9be72dc69d2147f5772ece01b2cd97e5208b98f3e7Srv.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/2032-76-0x0000000000400000-0x000000000042E000-memory.dmp upx -
Loads dropped DLL 2 IoCs
Processes:
d89720ade957d93beb913d9be72dc69d2147f5772ece01b2cd97e5208b98f3e7.exed89720ade957d93beb913d9be72dc69d2147f5772ece01b2cd97e5208b98f3e7Srv.exepid process 1080 d89720ade957d93beb913d9be72dc69d2147f5772ece01b2cd97e5208b98f3e7.exe 2032 d89720ade957d93beb913d9be72dc69d2147f5772ece01b2cd97e5208b98f3e7Srv.exe -
Drops file in Program Files directory 3 IoCs
Processes:
d89720ade957d93beb913d9be72dc69d2147f5772ece01b2cd97e5208b98f3e7Srv.exedescription ioc process File opened for modification C:\Program Files (x86)\Microsoft\DesktopLayer.exe d89720ade957d93beb913d9be72dc69d2147f5772ece01b2cd97e5208b98f3e7Srv.exe File opened for modification C:\Program Files (x86)\Microsoft\px6B5.tmp d89720ade957d93beb913d9be72dc69d2147f5772ece01b2cd97e5208b98f3e7Srv.exe File created C:\Program Files (x86)\Microsoft\DesktopLayer.exe d89720ade957d93beb913d9be72dc69d2147f5772ece01b2cd97e5208b98f3e7Srv.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-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Zoom iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "327730641" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\IntelliForms iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\LowRegistry iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{DCD23BB1-B46A-11EB-85FA-C64C73D39F9F} = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\IETld\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\PageSetup iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\GPU iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\InternetRegistry iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
DesktopLayer.exepid process 1472 DesktopLayer.exe 1472 DesktopLayer.exe 1472 DesktopLayer.exe 1472 DesktopLayer.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
iexplore.exepid process 1976 iexplore.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
Processes:
iexplore.exeIEXPLORE.EXEpid process 1976 iexplore.exe 1976 iexplore.exe 1680 IEXPLORE.EXE 1680 IEXPLORE.EXE 1680 IEXPLORE.EXE 1680 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 16 IoCs
Processes:
d89720ade957d93beb913d9be72dc69d2147f5772ece01b2cd97e5208b98f3e7.exed89720ade957d93beb913d9be72dc69d2147f5772ece01b2cd97e5208b98f3e7Srv.exeDesktopLayer.exeiexplore.exedescription pid process target process PID 1080 wrote to memory of 2032 1080 d89720ade957d93beb913d9be72dc69d2147f5772ece01b2cd97e5208b98f3e7.exe d89720ade957d93beb913d9be72dc69d2147f5772ece01b2cd97e5208b98f3e7Srv.exe PID 1080 wrote to memory of 2032 1080 d89720ade957d93beb913d9be72dc69d2147f5772ece01b2cd97e5208b98f3e7.exe d89720ade957d93beb913d9be72dc69d2147f5772ece01b2cd97e5208b98f3e7Srv.exe PID 1080 wrote to memory of 2032 1080 d89720ade957d93beb913d9be72dc69d2147f5772ece01b2cd97e5208b98f3e7.exe d89720ade957d93beb913d9be72dc69d2147f5772ece01b2cd97e5208b98f3e7Srv.exe PID 1080 wrote to memory of 2032 1080 d89720ade957d93beb913d9be72dc69d2147f5772ece01b2cd97e5208b98f3e7.exe d89720ade957d93beb913d9be72dc69d2147f5772ece01b2cd97e5208b98f3e7Srv.exe PID 2032 wrote to memory of 1472 2032 d89720ade957d93beb913d9be72dc69d2147f5772ece01b2cd97e5208b98f3e7Srv.exe DesktopLayer.exe PID 2032 wrote to memory of 1472 2032 d89720ade957d93beb913d9be72dc69d2147f5772ece01b2cd97e5208b98f3e7Srv.exe DesktopLayer.exe PID 2032 wrote to memory of 1472 2032 d89720ade957d93beb913d9be72dc69d2147f5772ece01b2cd97e5208b98f3e7Srv.exe DesktopLayer.exe PID 2032 wrote to memory of 1472 2032 d89720ade957d93beb913d9be72dc69d2147f5772ece01b2cd97e5208b98f3e7Srv.exe DesktopLayer.exe PID 1472 wrote to memory of 1976 1472 DesktopLayer.exe iexplore.exe PID 1472 wrote to memory of 1976 1472 DesktopLayer.exe iexplore.exe PID 1472 wrote to memory of 1976 1472 DesktopLayer.exe iexplore.exe PID 1472 wrote to memory of 1976 1472 DesktopLayer.exe iexplore.exe PID 1976 wrote to memory of 1680 1976 iexplore.exe IEXPLORE.EXE PID 1976 wrote to memory of 1680 1976 iexplore.exe IEXPLORE.EXE PID 1976 wrote to memory of 1680 1976 iexplore.exe IEXPLORE.EXE PID 1976 wrote to memory of 1680 1976 iexplore.exe IEXPLORE.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\d89720ade957d93beb913d9be72dc69d2147f5772ece01b2cd97e5208b98f3e7.exe"C:\Users\Admin\AppData\Local\Temp\d89720ade957d93beb913d9be72dc69d2147f5772ece01b2cd97e5208b98f3e7.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1080 -
C:\Users\Admin\AppData\Local\Temp\d89720ade957d93beb913d9be72dc69d2147f5772ece01b2cd97e5208b98f3e7Srv.exeC:\Users\Admin\AppData\Local\Temp\d89720ade957d93beb913d9be72dc69d2147f5772ece01b2cd97e5208b98f3e7Srv.exe2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:2032 -
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:1472 -
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:1976 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1976 CREDAT:275457 /prefetch:25⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1680
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\d89720ade957d93beb913d9be72dc69d2147f5772ece01b2cd97e5208b98f3e7Srv.exeMD5
ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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C:\Users\Admin\AppData\Local\Temp\d89720ade957d93beb913d9be72dc69d2147f5772ece01b2cd97e5208b98f3e7Srv.exeMD5
ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\B8RJCME3.txtMD5
6dc79264c5099d34e52ca714cd576ab8
SHA1f589bed1fa9241dc0130a42da3f755f5a84950c8
SHA2563981d36dbd5262768534a75038826741e94d024c2714ce19291078afb98789f5
SHA5121946b0325d246ec6a7e1d7535a5b3b05e4d65744de62d476fbbc8c2f37fbdadf5e0155e6d228fb4e024514fe5847905a89011560cdf49f99f6a434d9b40e2a14
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\Program Files (x86)\Microsoft\DesktopLayer.exeMD5
ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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\Users\Admin\AppData\Local\Temp\d89720ade957d93beb913d9be72dc69d2147f5772ece01b2cd97e5208b98f3e7Srv.exeMD5
ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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memory/1080-59-0x00000000766D1000-0x00000000766D3000-memory.dmpFilesize
8KB
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memory/1472-66-0x0000000000000000-mapping.dmp
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memory/1472-70-0x0000000000240000-0x0000000000241000-memory.dmpFilesize
4KB
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memory/1680-74-0x0000000000000000-mapping.dmp
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memory/1976-71-0x0000000000000000-mapping.dmp
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memory/1976-73-0x00000000021B0000-0x00000000021C0000-memory.dmpFilesize
64KB
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memory/1976-72-0x000007FEFBFF1000-0x000007FEFBFF3000-memory.dmpFilesize
8KB
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memory/1976-79-0x0000000004250000-0x0000000004251000-memory.dmpFilesize
4KB
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memory/2032-76-0x0000000000400000-0x000000000042E000-memory.dmpFilesize
184KB
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memory/2032-75-0x0000000000230000-0x000000000023F000-memory.dmpFilesize
60KB
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memory/2032-61-0x0000000000000000-mapping.dmp