Analysis
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max time kernel
147s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
26-08-2024 21:30
Static task
static1
Behavioral task
behavioral1
Sample
04e42207db45792cae0f6d3fd83f0680N.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
04e42207db45792cae0f6d3fd83f0680N.exe
Resource
win10v2004-20240802-en
General
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Target
04e42207db45792cae0f6d3fd83f0680N.exe
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Size
801KB
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MD5
04e42207db45792cae0f6d3fd83f0680
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SHA1
cb17f3a1bb57541204afd27313b390e5ead5096c
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SHA256
b377b7b8211e454117ba3d6cd6bb1ac84c0105c8647187cb5cf19ad50c9d26b9
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SHA512
b81da4e8961bc8c25e6832db5c1227cb253e178e6c5a4db0725ed073639d944b8d8012865ace42b2781b3f09b082e44a8a19c2ee326a173acb8757caebacbbf7
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SSDEEP
24576:7oL6YwH+hUfoA5snjj0ZvgCxwaEbNHzy9XSm3XNEGQnA:cL6Yw2UfoOoEwaONQXHNEGe
Malware Config
Extracted
djvu
http://asvb.top/nddddhsspen6/get.php
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extension
.pcqq
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offline_id
3pNdLH1399769YerBBKCxHURRAqLhaXsGw3Fbkt1
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payload_url
http://asvb.top/files/penelop/updatewin1.exe
http://asvb.top/files/penelop/updatewin2.exe
http://asvb.top/files/penelop/updatewin.exe
http://asvb.top/files/penelop/3.exe
http://asvb.top/files/penelop/4.exe
http://asvb.top/files/penelop/5.exe
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ransomnote
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Signatures
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Detected Djvu ransomware 12 IoCs
Processes:
resource yara_rule behavioral1/memory/2492-4-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2484-5-0x0000000001D70000-0x0000000001E8B000-memory.dmp family_djvu behavioral1/memory/2492-8-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2492-9-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2492-27-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2568-35-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2568-37-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2568-52-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2568-51-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2568-53-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2568-65-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/952-87-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
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Executes dropped EXE 2 IoCs
Processes:
04e42207db45792cae0f6d3fd83f0680N.exe04e42207db45792cae0f6d3fd83f0680N.exepid process 1852 04e42207db45792cae0f6d3fd83f0680N.exe 952 04e42207db45792cae0f6d3fd83f0680N.exe -
Modifies file permissions 1 TTPs 1 IoCs
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
04e42207db45792cae0f6d3fd83f0680N.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\556a43aa-aa4c-4ddf-8a81-b58c997c66eb\\04e42207db45792cae0f6d3fd83f0680N.exe\" --AutoStart" 04e42207db45792cae0f6d3fd83f0680N.exe -
Looks up external IP address via web service 4 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 35 api.2ip.ua 4 api.2ip.ua 5 api.2ip.ua 9 api.2ip.ua -
Suspicious use of SetThreadContext 3 IoCs
Processes:
04e42207db45792cae0f6d3fd83f0680N.exe04e42207db45792cae0f6d3fd83f0680N.exe04e42207db45792cae0f6d3fd83f0680N.exedescription pid process target process PID 2484 set thread context of 2492 2484 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 2796 set thread context of 2568 2796 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 1852 set thread context of 952 1852 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 7 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
04e42207db45792cae0f6d3fd83f0680N.exe04e42207db45792cae0f6d3fd83f0680N.exeicacls.exe04e42207db45792cae0f6d3fd83f0680N.exe04e42207db45792cae0f6d3fd83f0680N.exe04e42207db45792cae0f6d3fd83f0680N.exe04e42207db45792cae0f6d3fd83f0680N.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 04e42207db45792cae0f6d3fd83f0680N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 04e42207db45792cae0f6d3fd83f0680N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language icacls.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 04e42207db45792cae0f6d3fd83f0680N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 04e42207db45792cae0f6d3fd83f0680N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 04e42207db45792cae0f6d3fd83f0680N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 04e42207db45792cae0f6d3fd83f0680N.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
04e42207db45792cae0f6d3fd83f0680N.exe04e42207db45792cae0f6d3fd83f0680N.exe04e42207db45792cae0f6d3fd83f0680N.exepid process 2492 04e42207db45792cae0f6d3fd83f0680N.exe 2492 04e42207db45792cae0f6d3fd83f0680N.exe 2568 04e42207db45792cae0f6d3fd83f0680N.exe 2568 04e42207db45792cae0f6d3fd83f0680N.exe 952 04e42207db45792cae0f6d3fd83f0680N.exe 952 04e42207db45792cae0f6d3fd83f0680N.exe -
Suspicious use of WriteProcessMemory 45 IoCs
Processes:
04e42207db45792cae0f6d3fd83f0680N.exe04e42207db45792cae0f6d3fd83f0680N.exe04e42207db45792cae0f6d3fd83f0680N.exetaskeng.exe04e42207db45792cae0f6d3fd83f0680N.exedescription pid process target process PID 2484 wrote to memory of 2492 2484 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 2484 wrote to memory of 2492 2484 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 2484 wrote to memory of 2492 2484 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 2484 wrote to memory of 2492 2484 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 2484 wrote to memory of 2492 2484 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 2484 wrote to memory of 2492 2484 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 2484 wrote to memory of 2492 2484 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 2484 wrote to memory of 2492 2484 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 2484 wrote to memory of 2492 2484 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 2484 wrote to memory of 2492 2484 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 2484 wrote to memory of 2492 2484 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 2492 wrote to memory of 2708 2492 04e42207db45792cae0f6d3fd83f0680N.exe icacls.exe PID 2492 wrote to memory of 2708 2492 04e42207db45792cae0f6d3fd83f0680N.exe icacls.exe PID 2492 wrote to memory of 2708 2492 04e42207db45792cae0f6d3fd83f0680N.exe icacls.exe PID 2492 wrote to memory of 2708 2492 04e42207db45792cae0f6d3fd83f0680N.exe icacls.exe PID 2492 wrote to memory of 2796 2492 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 2492 wrote to memory of 2796 2492 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 2492 wrote to memory of 2796 2492 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 2492 wrote to memory of 2796 2492 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 2796 wrote to memory of 2568 2796 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 2796 wrote to memory of 2568 2796 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 2796 wrote to memory of 2568 2796 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 2796 wrote to memory of 2568 2796 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 2796 wrote to memory of 2568 2796 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 2796 wrote to memory of 2568 2796 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 2796 wrote to memory of 2568 2796 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 2796 wrote to memory of 2568 2796 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 2796 wrote to memory of 2568 2796 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 2796 wrote to memory of 2568 2796 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 2796 wrote to memory of 2568 2796 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 2016 wrote to memory of 1852 2016 taskeng.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 2016 wrote to memory of 1852 2016 taskeng.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 2016 wrote to memory of 1852 2016 taskeng.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 2016 wrote to memory of 1852 2016 taskeng.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 1852 wrote to memory of 952 1852 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 1852 wrote to memory of 952 1852 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 1852 wrote to memory of 952 1852 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 1852 wrote to memory of 952 1852 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 1852 wrote to memory of 952 1852 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 1852 wrote to memory of 952 1852 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 1852 wrote to memory of 952 1852 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 1852 wrote to memory of 952 1852 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 1852 wrote to memory of 952 1852 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 1852 wrote to memory of 952 1852 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 1852 wrote to memory of 952 1852 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\04e42207db45792cae0f6d3fd83f0680N.exe"C:\Users\Admin\AppData\Local\Temp\04e42207db45792cae0f6d3fd83f0680N.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2484 -
C:\Users\Admin\AppData\Local\Temp\04e42207db45792cae0f6d3fd83f0680N.exe"C:\Users\Admin\AppData\Local\Temp\04e42207db45792cae0f6d3fd83f0680N.exe"2⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2492 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\556a43aa-aa4c-4ddf-8a81-b58c997c66eb" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
- System Location Discovery: System Language Discovery
PID:2708 -
C:\Users\Admin\AppData\Local\Temp\04e42207db45792cae0f6d3fd83f0680N.exe"C:\Users\Admin\AppData\Local\Temp\04e42207db45792cae0f6d3fd83f0680N.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2796 -
C:\Users\Admin\AppData\Local\Temp\04e42207db45792cae0f6d3fd83f0680N.exe"C:\Users\Admin\AppData\Local\Temp\04e42207db45792cae0f6d3fd83f0680N.exe" --Admin IsNotAutoStart IsNotTask4⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2568
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C:\Windows\system32\taskeng.exetaskeng.exe {E1B0D378-0043-4AD0-AF44-02A1DF635984} S-1-5-21-3551809350-4263495960-1443967649-1000:NNYJZAHP\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
PID:2016 -
C:\Users\Admin\AppData\Local\556a43aa-aa4c-4ddf-8a81-b58c997c66eb\04e42207db45792cae0f6d3fd83f0680N.exeC:\Users\Admin\AppData\Local\556a43aa-aa4c-4ddf-8a81-b58c997c66eb\04e42207db45792cae0f6d3fd83f0680N.exe --Task2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1852 -
C:\Users\Admin\AppData\Local\556a43aa-aa4c-4ddf-8a81-b58c997c66eb\04e42207db45792cae0f6d3fd83f0680N.exeC:\Users\Admin\AppData\Local\556a43aa-aa4c-4ddf-8a81-b58c997c66eb\04e42207db45792cae0f6d3fd83f0680N.exe --Task3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:952
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD57fb5fa1534dcf77f2125b2403b30a0ee
SHA1365d96812a69ac0a4611ea4b70a3f306576cc3ea
SHA25633a39e9ec2133230533a686ec43760026e014a3828c703707acbc150fe40fd6f
SHA512a9279fd60505a1bfeef6fb07834cad0fd5be02fd405573fc1a5f59b991e9f88f5e81c32fe910f69bdc6585e71f02559895149eaf49c25b8ff955459fd60c0d2e
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Filesize
436B
MD5971c514f84bba0785f80aa1c23edfd79
SHA1732acea710a87530c6b08ecdf32a110d254a54c8
SHA256f157ed17fcaf8837fa82f8b69973848c9b10a02636848f995698212a08f31895
SHA51243dc1425d80e170c645a3e3bb56da8c3acd31bd637329e9e37094ac346ac85434df4edcdbefc05ae00aea33a80a88e2af695997a495611217fe6706075a63c58
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12
Filesize174B
MD55f712237c1684d132bcb5ab545244942
SHA1c53f09882fe3744fab6c2deffda1a0b4cd46f973
SHA256949ffa28de4e3d440ba87623aab5aa3c870c2609024476be6fb52c4ae656270d
SHA512eaf833a03bfbb113bcd15e98d64e5f7a4da27dcf5161a9ee53658f2b36f30f574aef51109b079b968b73dd215550ab801cb7d323cdc5570c92afa12f2ee47cb8
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
Filesize170B
MD52b39d0d08115c0aec4e01dcdb28ed05b
SHA1c7bb8b09de2df246cddda4f8e4abb72e1b1dc481
SHA2565f1352116c1b83ec861219f73fe12c7d84b05ddfc56b59090ad22baa872d15cd
SHA512431c9e94046b369348d48abe3fb9bb07c618cefef5eee7a138c4fbe001b5d9b9d276054e148f786d335b8535f19b677031454697a6473618f706467e2cb1fc54
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C:\Users\Admin\AppData\Local\556a43aa-aa4c-4ddf-8a81-b58c997c66eb\04e42207db45792cae0f6d3fd83f0680N.exe
Filesize801KB
MD504e42207db45792cae0f6d3fd83f0680
SHA1cb17f3a1bb57541204afd27313b390e5ead5096c
SHA256b377b7b8211e454117ba3d6cd6bb1ac84c0105c8647187cb5cf19ad50c9d26b9
SHA512b81da4e8961bc8c25e6832db5c1227cb253e178e6c5a4db0725ed073639d944b8d8012865ace42b2781b3f09b082e44a8a19c2ee326a173acb8757caebacbbf7
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Filesize
70KB
MD549aebf8cbd62d92ac215b2923fb1b9f5
SHA11723be06719828dda65ad804298d0431f6aff976
SHA256b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b
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Filesize
181KB
MD54ea6026cf93ec6338144661bf1202cd1
SHA1a1dec9044f750ad887935a01430bf49322fbdcb7
SHA2568efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8
SHA5126c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b