Analysis
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max time kernel
108s -
max time network
136s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
13-05-2021 12:03
Static task
static1
Behavioral task
behavioral1
Sample
6068ce6d8ea100b60b5a798d4215e37173b1a1633d115f1ce122f1d43947e033.dll
Resource
win7v20210410
General
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Target
6068ce6d8ea100b60b5a798d4215e37173b1a1633d115f1ce122f1d43947e033.dll
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Size
536KB
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MD5
e3b1f2f727df5f5d9ef8bfb36b80e439
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SHA1
f7587aac0c1d9a8158456398ebcacf78937f9c1c
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SHA256
6068ce6d8ea100b60b5a798d4215e37173b1a1633d115f1ce122f1d43947e033
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SHA512
3068fd87154156ad3128f05838b3edadc65ebe411b598b5badcaaf84e82df065aaf2bd1c2342b441567e144f72d32bc0d4a4dd92f43d5026f569215ad716fbab
Malware Config
Signatures
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Executes dropped EXE 2 IoCs
Processes:
rundll32Srv.exeDesktopLayer.exepid process 1508 rundll32Srv.exe 1972 DesktopLayer.exe -
Processes:
resource yara_rule \Windows\SysWOW64\rundll32Srv.exe upx C:\Windows\SysWOW64\rundll32Srv.exe upx C:\Windows\SysWOW64\rundll32Srv.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/1508-76-0x0000000000400000-0x000000000042E000-memory.dmp upx -
Loads dropped DLL 2 IoCs
Processes:
rundll32.exerundll32Srv.exepid process 1920 rundll32.exe 1508 rundll32Srv.exe -
Drops file in System32 directory 1 IoCs
Processes:
rundll32.exedescription ioc process File created C:\Windows\SysWOW64\rundll32Srv.exe rundll32.exe -
Drops file in Program Files directory 3 IoCs
Processes:
rundll32Srv.exedescription ioc process File opened for modification C:\Program Files (x86)\Microsoft\px483.tmp rundll32Srv.exe File created C:\Program Files (x86)\Microsoft\DesktopLayer.exe rundll32Srv.exe File opened for modification C:\Program Files (x86)\Microsoft\DesktopLayer.exe rundll32Srv.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 1788 1920 WerFault.exe rundll32.exe -
Processes:
IEXPLORE.EXEiexplore.exedescription ioc process 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\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\InternetRegistry 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\Recovery\PendingRecovery 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\LowRegistry iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{1AB69531-B46A-11EB-A60E-EEAC38710E3B} = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "327730316" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic 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\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\GPU iexplore.exe 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\Main\WindowsSearch 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\PageSetup 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\Recovery\AdminActive 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\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\DOMStorage iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain 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 Set value (int) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "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 -
Suspicious behavior: EnumeratesProcesses 9 IoCs
Processes:
DesktopLayer.exeWerFault.exepid process 1972 DesktopLayer.exe 1972 DesktopLayer.exe 1972 DesktopLayer.exe 1972 DesktopLayer.exe 1788 WerFault.exe 1788 WerFault.exe 1788 WerFault.exe 1788 WerFault.exe 1788 WerFault.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
WerFault.exepid process 1788 WerFault.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
WerFault.exedescription pid process Token: SeDebugPrivilege 1788 WerFault.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
iexplore.exepid process 1792 iexplore.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
Processes:
iexplore.exeIEXPLORE.EXEpid process 1792 iexplore.exe 1792 iexplore.exe 1320 IEXPLORE.EXE 1320 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 27 IoCs
Processes:
rundll32.exerundll32.exerundll32Srv.exeDesktopLayer.exeiexplore.exedescription pid process target process PID 788 wrote to memory of 1920 788 rundll32.exe rundll32.exe PID 788 wrote to memory of 1920 788 rundll32.exe rundll32.exe PID 788 wrote to memory of 1920 788 rundll32.exe rundll32.exe PID 788 wrote to memory of 1920 788 rundll32.exe rundll32.exe PID 788 wrote to memory of 1920 788 rundll32.exe rundll32.exe PID 788 wrote to memory of 1920 788 rundll32.exe rundll32.exe PID 788 wrote to memory of 1920 788 rundll32.exe rundll32.exe PID 1920 wrote to memory of 1508 1920 rundll32.exe rundll32Srv.exe PID 1920 wrote to memory of 1508 1920 rundll32.exe rundll32Srv.exe PID 1920 wrote to memory of 1508 1920 rundll32.exe rundll32Srv.exe PID 1920 wrote to memory of 1508 1920 rundll32.exe rundll32Srv.exe PID 1508 wrote to memory of 1972 1508 rundll32Srv.exe DesktopLayer.exe PID 1508 wrote to memory of 1972 1508 rundll32Srv.exe DesktopLayer.exe PID 1508 wrote to memory of 1972 1508 rundll32Srv.exe DesktopLayer.exe PID 1508 wrote to memory of 1972 1508 rundll32Srv.exe DesktopLayer.exe PID 1972 wrote to memory of 1792 1972 DesktopLayer.exe iexplore.exe PID 1972 wrote to memory of 1792 1972 DesktopLayer.exe iexplore.exe PID 1972 wrote to memory of 1792 1972 DesktopLayer.exe iexplore.exe PID 1972 wrote to memory of 1792 1972 DesktopLayer.exe iexplore.exe PID 1920 wrote to memory of 1788 1920 rundll32.exe WerFault.exe PID 1920 wrote to memory of 1788 1920 rundll32.exe WerFault.exe PID 1920 wrote to memory of 1788 1920 rundll32.exe WerFault.exe PID 1920 wrote to memory of 1788 1920 rundll32.exe WerFault.exe PID 1792 wrote to memory of 1320 1792 iexplore.exe IEXPLORE.EXE PID 1792 wrote to memory of 1320 1792 iexplore.exe IEXPLORE.EXE PID 1792 wrote to memory of 1320 1792 iexplore.exe IEXPLORE.EXE PID 1792 wrote to memory of 1320 1792 iexplore.exe IEXPLORE.EXE
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\6068ce6d8ea100b60b5a798d4215e37173b1a1633d115f1ce122f1d43947e033.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:788 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\6068ce6d8ea100b60b5a798d4215e37173b1a1633d115f1ce122f1d43947e033.dll,#12⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:1920 -
C:\Windows\SysWOW64\rundll32Srv.exeC:\Windows\SysWOW64\rundll32Srv.exe3⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1508 -
C:\Program Files (x86)\Microsoft\DesktopLayer.exe"C:\Program Files (x86)\Microsoft\DesktopLayer.exe"4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1972 -
C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe"5⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1792 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1792 CREDAT:275457 /prefetch:26⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1320 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1920 -s 2363⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:1788
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\Roaming\Microsoft\Windows\Cookies\K41GM86P.txtMD5
96949b6568f16b33cccae69fc7169ea7
SHA1b41aaf1923514f59bf7d452d4c1cdfeebb653c04
SHA256b3c754516adf0d2b7ad73f3356e3a296319f9b02c0208c804abdc034edd18084
SHA512ef54d7c28a296df9cda6ec3af3111268f59e97fe62d3a451063f701d8c1a74aefa5fcb044e906dc55d3c1fc3eb04e4440039f8c1e689d2eec5a64cbed8be1440
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C:\Windows\SysWOW64\rundll32Srv.exeMD5
ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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C:\Windows\SysWOW64\rundll32Srv.exeMD5
ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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\Program Files (x86)\Microsoft\DesktopLayer.exeMD5
ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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\Windows\SysWOW64\rundll32Srv.exeMD5
ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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memory/1320-79-0x0000000000000000-mapping.dmp
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memory/1508-75-0x0000000000230000-0x000000000023F000-memory.dmpFilesize
60KB
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memory/1508-62-0x0000000000000000-mapping.dmp
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memory/1508-76-0x0000000000400000-0x000000000042E000-memory.dmpFilesize
184KB
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memory/1788-80-0x0000000000590000-0x0000000000591000-memory.dmpFilesize
4KB
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memory/1788-74-0x0000000000000000-mapping.dmp
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memory/1792-72-0x0000000000000000-mapping.dmp
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memory/1792-73-0x000007FEFBC81000-0x000007FEFBC83000-memory.dmpFilesize
8KB
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memory/1920-59-0x0000000000000000-mapping.dmp
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memory/1920-60-0x0000000075551000-0x0000000075553000-memory.dmpFilesize
8KB
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memory/1972-67-0x0000000000000000-mapping.dmp
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memory/1972-71-0x00000000001D0000-0x00000000001D1000-memory.dmpFilesize
4KB