Analysis
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max time kernel
130s -
max time network
95s -
platform
windows10_x64 -
resource
win10v20210408 -
submitted
13-05-2021 15:36
Static task
static1
Behavioral task
behavioral1
Sample
65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0.exe
Resource
win7v20210410
General
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Target
65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0.exe
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Size
617KB
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MD5
3835ea21eec2887fe431aaafee03764e
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SHA1
1a9894bcaa6760197c3a57ba14376dc62ac9df80
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SHA256
65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0
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SHA512
7b4dea6bf962b6d34d35f165d9575189cf8a18494d89066e7eb7bda98214022a97faac106782bd9f03946d551c8a95650cd59153d1f9cd3804c5d999aa374ce2
Malware Config
Signatures
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Executes dropped EXE 2 IoCs
Processes:
65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0Srv.exeDesktopLayer.exepid process 3772 65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0Srv.exe 640 DesktopLayer.exe -
Processes:
resource yara_rule C:\Users\Admin\AppData\Local\Temp\65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0Srv.exe upx C:\Users\Admin\AppData\Local\Temp\65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0Srv.exe upx behavioral2/memory/3772-118-0x0000000000400000-0x000000000042E000-memory.dmp upx C:\Program Files (x86)\Microsoft\DesktopLayer.exe upx C:\Program Files (x86)\Microsoft\DesktopLayer.exe upx -
Drops file in Program Files directory 3 IoCs
Processes:
65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0Srv.exedescription ioc process File opened for modification C:\Program Files (x86)\Microsoft\px9F43.tmp 65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0Srv.exe File created C:\Program Files (x86)\Microsoft\DesktopLayer.exe 65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0Srv.exe File opened for modification C:\Program Files (x86)\Microsoft\DesktopLayer.exe 65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0Srv.exe -
Processes:
iexplore.exeIEXPLORE.EXEdescription ioc process Set value (int) \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "327158306" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Internet Explorer\HistoryJournalCertificate iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{7C6A48AA-B4B2-11EB-B2DB-56DFFBC7AD00} = "0" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Internet Explorer\FlipAhead\NextUpdateDate = "327158475" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Internet Explorer\HistoryJournalCertificate\NextUpdateDate = "327158363" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Internet Explorer\FlipAhead iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE -
Modifies registry class 18 IoCs
Processes:
65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\DiagFileType\shell\printto\command 65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.pda\ShellNew 65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\DiagFileType 65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\DiagFileType\ = "Diag File Type" 65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\DiagFileType\shell\open 65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\DiagFileType\shell\open\command\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\65BF28~1.EXE \"%1\"" 65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\DiagFileType\DefaultIcon 65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\DiagFileType\shell\print\command 65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\DiagFileType\shell\printto 65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\DiagFileType\shell\printto\command\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\65BF28~1.EXE /pt \"%1\" \"%2\" \"%3\" \"%4\"" 65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.pda\ = "DiagFileType" 65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\DiagFileType\shell\open\command 65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\DiagFileType\shell 65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\DiagFileType\shell\print 65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\DiagFileType\shell\print\command\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\65BF28~1.EXE /p \"%1\"" 65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\DiagFileType\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\65BF28~1.EXE,1" 65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.pda 65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.pda\ShellNew\NullFile 65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
DesktopLayer.exepid process 640 DesktopLayer.exe 640 DesktopLayer.exe 640 DesktopLayer.exe 640 DesktopLayer.exe 640 DesktopLayer.exe 640 DesktopLayer.exe 640 DesktopLayer.exe 640 DesktopLayer.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
iexplore.exepid process 488 iexplore.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
iexplore.exepid process 488 iexplore.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
Processes:
65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0.exeiexplore.exeIEXPLORE.EXEpid process 908 65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0.exe 908 65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0.exe 488 iexplore.exe 488 iexplore.exe 204 IEXPLORE.EXE 204 IEXPLORE.EXE 204 IEXPLORE.EXE 204 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0.exe65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0Srv.exeDesktopLayer.exeiexplore.exedescription pid process target process PID 908 wrote to memory of 3772 908 65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0.exe 65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0Srv.exe PID 908 wrote to memory of 3772 908 65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0.exe 65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0Srv.exe PID 908 wrote to memory of 3772 908 65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0.exe 65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0Srv.exe PID 3772 wrote to memory of 640 3772 65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0Srv.exe DesktopLayer.exe PID 3772 wrote to memory of 640 3772 65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0Srv.exe DesktopLayer.exe PID 3772 wrote to memory of 640 3772 65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0Srv.exe DesktopLayer.exe PID 640 wrote to memory of 488 640 DesktopLayer.exe iexplore.exe PID 640 wrote to memory of 488 640 DesktopLayer.exe iexplore.exe PID 488 wrote to memory of 204 488 iexplore.exe IEXPLORE.EXE PID 488 wrote to memory of 204 488 iexplore.exe IEXPLORE.EXE PID 488 wrote to memory of 204 488 iexplore.exe IEXPLORE.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0.exe"C:\Users\Admin\AppData\Local\Temp\65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0.exe"1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:908 -
C:\Users\Admin\AppData\Local\Temp\65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0Srv.exeC:\Users\Admin\AppData\Local\Temp\65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0Srv.exe2⤵
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:3772 -
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:640 -
C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe"4⤵
- Modifies Internet Explorer settings
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:488 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:488 CREDAT:82945 /prefetch:25⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:204
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Program Files (x86)\Microsoft\DesktopLayer.exeMD5
da18881ccaefeaa4942af9291cb34826
SHA1e4f33c21684bede05ccea60dd0767250ff2b3aba
SHA2561d736643af18fe45f74f67a68c3268b39e7dbd84aaaf46dba5e23e48e8402842
SHA5122420cf80794f4e74fb95934698714d4386e022d68c0c4e181d9d6e189bf3fab09f920e6e9128e423a1dbf357558bab628133d1084a7a306617c3a9c2461a5901
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C:\Program Files (x86)\Microsoft\DesktopLayer.exeMD5
da18881ccaefeaa4942af9291cb34826
SHA1e4f33c21684bede05ccea60dd0767250ff2b3aba
SHA2561d736643af18fe45f74f67a68c3268b39e7dbd84aaaf46dba5e23e48e8402842
SHA5122420cf80794f4e74fb95934698714d4386e022d68c0c4e181d9d6e189bf3fab09f920e6e9128e423a1dbf357558bab628133d1084a7a306617c3a9c2461a5901
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C:\Users\Admin\AppData\Local\Temp\65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0Srv.exeMD5
da18881ccaefeaa4942af9291cb34826
SHA1e4f33c21684bede05ccea60dd0767250ff2b3aba
SHA2561d736643af18fe45f74f67a68c3268b39e7dbd84aaaf46dba5e23e48e8402842
SHA5122420cf80794f4e74fb95934698714d4386e022d68c0c4e181d9d6e189bf3fab09f920e6e9128e423a1dbf357558bab628133d1084a7a306617c3a9c2461a5901
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C:\Users\Admin\AppData\Local\Temp\65bf28e5161e81dfcfc9c2a3da4d05da7de6802987236e3bb9b98c08bf1b17c0Srv.exeMD5
da18881ccaefeaa4942af9291cb34826
SHA1e4f33c21684bede05ccea60dd0767250ff2b3aba
SHA2561d736643af18fe45f74f67a68c3268b39e7dbd84aaaf46dba5e23e48e8402842
SHA5122420cf80794f4e74fb95934698714d4386e022d68c0c4e181d9d6e189bf3fab09f920e6e9128e423a1dbf357558bab628133d1084a7a306617c3a9c2461a5901
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memory/204-127-0x0000000000000000-mapping.dmp
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memory/488-123-0x0000000000000000-mapping.dmp
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memory/488-124-0x00007FFAE8EA0000-0x00007FFAE8F0B000-memory.dmpFilesize
428KB
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memory/640-119-0x0000000000000000-mapping.dmp
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memory/640-122-0x00000000001F0000-0x00000000001F1000-memory.dmpFilesize
4KB
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memory/3772-114-0x0000000000000000-mapping.dmp
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memory/3772-117-0x00000000001E0000-0x00000000001EF000-memory.dmpFilesize
60KB
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memory/3772-118-0x0000000000400000-0x000000000042E000-memory.dmpFilesize
184KB