Analysis
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max time kernel
4s -
max time network
30s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
23-11-2022 18:42
Static task
static1
Behavioral task
behavioral1
Sample
dffb3f5725f3cc1322766b53b4fda64c830c7745e395a8b71926f9736fd877ae.dll
Resource
win7-20221111-en
General
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Target
dffb3f5725f3cc1322766b53b4fda64c830c7745e395a8b71926f9736fd877ae.dll
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Size
208KB
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MD5
441d8a1ea39645f6e91883627a84e3c0
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SHA1
a10b024b27f8ab2c1826db8dc2f52c1e3654b040
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SHA256
dffb3f5725f3cc1322766b53b4fda64c830c7745e395a8b71926f9736fd877ae
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SHA512
23212ec749f5e5f68399d7846c288ffe23d9fd7d39813edd9db83ec4a5b2e59ef39138588aa56c1de1d6bf9e3c01d3f0e98fd208cb7cae9ed854731be2bd01b8
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SSDEEP
3072:uvHDrpT7s0rsQQuYVqsxPj2UhbyQfQ5KoldqHbDTmcLRkA:qHDra0rTQswPjvFDfPoldqHbNB
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
Processes:
regsvr32mgr.exepid process 904 regsvr32mgr.exe -
Processes:
resource yara_rule behavioral1/memory/904-64-0x0000000000400000-0x0000000000451000-memory.dmp upx -
Loads dropped DLL 4 IoCs
Processes:
regsvr32.exeregsvr32mgr.exepid process 1140 regsvr32.exe 1140 regsvr32.exe 904 regsvr32mgr.exe 904 regsvr32mgr.exe -
Drops file in System32 directory 1 IoCs
Processes:
regsvr32.exedescription ioc process File created C:\Windows\SysWOW64\regsvr32mgr.exe regsvr32.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 652 904 WerFault.exe regsvr32mgr.exe -
Modifies registry class 64 IoCs
Processes:
regsvr32.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{916FEC45-8FAB-460F-9BD1-325055E3DEC9} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{25824158-68E7-4A6F-A2FD-F6AD1D6845D4}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{25824158-68E7-4A6F-A2FD-F6AD1D6845D4}\NumMethods regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{D5393CA5-EF8F-49E0-B180-212C903C652C}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{DDA11344-AB20-4AEC-94C4-6AA091574CD0}\NumMethods regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{DC61FD6D-FB60-4ABC-BF2E-4DF75C90C601}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{DC61FD6D-FB60-4ABC-BF2E-4DF75C90C601}\NumMethods\ = "17" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{D5393CA5-EF8F-49E0-B180-212C903C652C}\NumMethods\ = "7" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{B7C4F4C9-EE21-4042-9C11-BEA5E039B1F9}\NumMethods\ = "12" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{965FD393-C149-45F1-863C-402C4E2E38C5} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{B7C4F4C9-EE21-4042-9C11-BEA5E039B1F9}\NumMethods regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{916FEC45-8FAB-460F-9BD1-325055E3DEC9}\NumMethods\ = "17" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{25824158-68E7-4A6F-A2FD-F6AD1D6845D4}\ProxyStubClsid32\ = "{DDA11344-AB20-4AEC-94C4-6AA091574CD0}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{DC61FD6D-FB60-4ABC-BF2E-4DF75C90C601}\ = "IDisplayConfig" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{965FD393-C149-45F1-863C-402C4E2E38C5}\NumMethods\ = "8" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{B7C4F4C9-EE21-4042-9C11-BEA5E039B1F9}\ProxyStubClsid32\ = "{DDA11344-AB20-4AEC-94C4-6AA091574CD0}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{D80D344A-0CCD-4B2F-B379-56DE3EC2C4D1}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{299D88F9-2CBD-4225-BF19-FCD164C54C3F} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{25824158-68E7-4A6F-A2FD-F6AD1D6845D4}\NumMethods\ = "13" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{D5393CA5-EF8F-49E0-B180-212C903C652C} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{D5393CA5-EF8F-49E0-B180-212C903C652C}\ = "IScheme" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{63CDDDB9-A85B-411E-AA78-101B3BC17261}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{DDA11344-AB20-4AEC-94C4-6AA091574CD0}\InProcServer32\ThreadingModel = "Both" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{D80D344A-0CCD-4B2F-B379-56DE3EC2C4D1}\NumMethods regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{DC61FD6D-FB60-4ABC-BF2E-4DF75C90C601} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{965FD393-C149-45F1-863C-402C4E2E38C5}\ProxyStubClsid32\ = "{DDA11344-AB20-4AEC-94C4-6AA091574CD0}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{D5393CA5-EF8F-49E0-B180-212C903C652C}\NumMethods regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{63CDDDB9-A85B-411E-AA78-101B3BC17261}\ = "IColor" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{299D88F9-2CBD-4225-BF19-FCD164C54C3F}\ = "ICUIPower" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{299D88F9-2CBD-4225-BF19-FCD164C54C3F}\NumMethods\ = "10" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{D80D344A-0CCD-4B2F-B379-56DE3EC2C4D1}\NumMethods\ = "10" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{72DC5954-069D-43C4-9B8B-19B59269DC74}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{72DC5954-069D-43C4-9B8B-19B59269DC74}\ProxyStubClsid32\ = "{DDA11344-AB20-4AEC-94C4-6AA091574CD0}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{72DC5954-069D-43C4-9B8B-19B59269DC74}\NumMethods\ = "11" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{965FD393-C149-45F1-863C-402C4E2E38C5}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{DDA11344-AB20-4AEC-94C4-6AA091574CD0}\NumMethods\ = "9" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{72DC5954-069D-43C4-9B8B-19B59269DC74}\ = "IRotation" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{DDA11344-AB20-4AEC-94C4-6AA091574CD0} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{25824158-68E7-4A6F-A2FD-F6AD1D6845D4} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{DC61FD6D-FB60-4ABC-BF2E-4DF75C90C601}\NumMethods regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{299D88F9-2CBD-4225-BF19-FCD164C54C3F}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{299D88F9-2CBD-4225-BF19-FCD164C54C3F}\NumMethods regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{DDA11344-AB20-4AEC-94C4-6AA091574CD0}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{D80D344A-0CCD-4B2F-B379-56DE3EC2C4D1}\ProxyStubClsid32\ = "{DDA11344-AB20-4AEC-94C4-6AA091574CD0}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{D80D344A-0CCD-4B2F-B379-56DE3EC2C4D1}\ = "IMCCS" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{72DC5954-069D-43C4-9B8B-19B59269DC74} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{63CDDDB9-A85B-411E-AA78-101B3BC17261}\ProxyStubClsid32\ = "{DDA11344-AB20-4AEC-94C4-6AA091574CD0}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{63CDDDB9-A85B-411E-AA78-101B3BC17261}\NumMethods regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{63CDDDB9-A85B-411E-AA78-101B3BC17261} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{B7C4F4C9-EE21-4042-9C11-BEA5E039B1F9}\ = "IEDID" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{DDA11344-AB20-4AEC-94C4-6AA091574CD0}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\dffb3f5725f3cc1322766b53b4fda64c830c7745e395a8b71926f9736fd877ae.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{916FEC45-8FAB-460F-9BD1-325055E3DEC9}\ = "ISettings" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{916FEC45-8FAB-460F-9BD1-325055E3DEC9}\NumMethods regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{25824158-68E7-4A6F-A2FD-F6AD1D6845D4}\ = "IOverlay" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{DC61FD6D-FB60-4ABC-BF2E-4DF75C90C601}\ProxyStubClsid32\ = "{DDA11344-AB20-4AEC-94C4-6AA091574CD0}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{299D88F9-2CBD-4225-BF19-FCD164C54C3F}\ProxyStubClsid32\ = "{DDA11344-AB20-4AEC-94C4-6AA091574CD0}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{DDA11344-AB20-4AEC-94C4-6AA091574CD0}\ = "PSFactoryBuffer" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{DDA11344-AB20-4AEC-94C4-6AA091574CD0} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{DDA11344-AB20-4AEC-94C4-6AA091574CD0}\ProxyStubClsid32\ = "{DDA11344-AB20-4AEC-94C4-6AA091574CD0}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{916FEC45-8FAB-460F-9BD1-325055E3DEC9}\ProxyStubClsid32\ = "{DDA11344-AB20-4AEC-94C4-6AA091574CD0}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{965FD393-C149-45F1-863C-402C4E2E38C5}\ = "IOpenGL" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{B7C4F4C9-EE21-4042-9C11-BEA5E039B1F9} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{DDA11344-AB20-4AEC-94C4-6AA091574CD0}\InProcServer32 regsvr32.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
regsvr32.exeregsvr32.exedescription pid process target process PID 940 wrote to memory of 1140 940 regsvr32.exe regsvr32.exe PID 940 wrote to memory of 1140 940 regsvr32.exe regsvr32.exe PID 940 wrote to memory of 1140 940 regsvr32.exe regsvr32.exe PID 940 wrote to memory of 1140 940 regsvr32.exe regsvr32.exe PID 940 wrote to memory of 1140 940 regsvr32.exe regsvr32.exe PID 940 wrote to memory of 1140 940 regsvr32.exe regsvr32.exe PID 940 wrote to memory of 1140 940 regsvr32.exe regsvr32.exe PID 1140 wrote to memory of 904 1140 regsvr32.exe regsvr32mgr.exe PID 1140 wrote to memory of 904 1140 regsvr32.exe regsvr32mgr.exe PID 1140 wrote to memory of 904 1140 regsvr32.exe regsvr32mgr.exe PID 1140 wrote to memory of 904 1140 regsvr32.exe regsvr32mgr.exe
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\dffb3f5725f3cc1322766b53b4fda64c830c7745e395a8b71926f9736fd877ae.dll1⤵
- Suspicious use of WriteProcessMemory
PID:940 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\dffb3f5725f3cc1322766b53b4fda64c830c7745e395a8b71926f9736fd877ae.dll2⤵
- Loads dropped DLL
- Drops file in System32 directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1140 -
C:\Windows\SysWOW64\regsvr32mgr.exeC:\Windows\SysWOW64\regsvr32mgr.exe3⤵
- Executes dropped EXE
- Loads dropped DLL
PID:904 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 904 -s 1484⤵
- Program crash
PID:652
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
144KB
MD5609c9eadac4c1cc48b5f89be6c36e276
SHA1f047b565fdb73d5b75ffaed7b2faa335e82b3514
SHA256e982967b3a8613149cd29d659a4b4aa6241ef8e4f124458785220e76e8b18325
SHA512246dab455d7b7661126e79bb9b1b2aee2fee26790b8fde0779d529cfceb295b9df2fb5aca2da1ab3d52f22b4157a46ea8b164e7aa02e842aca2cd27076d85fb5
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Filesize
1.2MB
MD5d124f55b9393c976963407dff51ffa79
SHA12c7bbedd79791bfb866898c85b504186db610b5d
SHA256ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef
SHA512278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06
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Filesize
1.1MB
MD59b98d47916ead4f69ef51b56b0c2323c
SHA1290a80b4ded0efc0fd00816f373fcea81a521330
SHA25696e0ae104c9662d0d20fdf59844c2d18334e5847b6c4fc7f8ce4b3b87f39887b
SHA51268b67021f228d8d71df4deb0b6388558b2f935a6aa466a12199cd37ada47ee588ea407b278d190d3a498b0ef3f5f1a2573a469b7ea5561ab2e7055c45565fe94
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Filesize
144KB
MD5609c9eadac4c1cc48b5f89be6c36e276
SHA1f047b565fdb73d5b75ffaed7b2faa335e82b3514
SHA256e982967b3a8613149cd29d659a4b4aa6241ef8e4f124458785220e76e8b18325
SHA512246dab455d7b7661126e79bb9b1b2aee2fee26790b8fde0779d529cfceb295b9df2fb5aca2da1ab3d52f22b4157a46ea8b164e7aa02e842aca2cd27076d85fb5
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Filesize
144KB
MD5609c9eadac4c1cc48b5f89be6c36e276
SHA1f047b565fdb73d5b75ffaed7b2faa335e82b3514
SHA256e982967b3a8613149cd29d659a4b4aa6241ef8e4f124458785220e76e8b18325
SHA512246dab455d7b7661126e79bb9b1b2aee2fee26790b8fde0779d529cfceb295b9df2fb5aca2da1ab3d52f22b4157a46ea8b164e7aa02e842aca2cd27076d85fb5