Analysis
-
max time kernel
171s -
max time network
146s -
platform
windows7_x64 -
resource
win7-en-20211208 -
submitted
20-02-2022 02:12
Static task
static1
Behavioral task
behavioral1
Sample
c7f8289950b0d8aa97dceadf2a98aef51886710d56a5283b889c9ad191531028.dll
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
c7f8289950b0d8aa97dceadf2a98aef51886710d56a5283b889c9ad191531028.dll
Resource
win10v2004-en-20220112
General
-
Target
c7f8289950b0d8aa97dceadf2a98aef51886710d56a5283b889c9ad191531028.dll
-
Size
130KB
-
MD5
1e2b8973130672a1e739b035d30155b0
-
SHA1
b4f098806ac9060f0f4dd3d63e8d831c69be6c81
-
SHA256
c7f8289950b0d8aa97dceadf2a98aef51886710d56a5283b889c9ad191531028
-
SHA512
a4be4accd1f5a7ab4131b477f61565822f545cff1c89e6167de4f07fa7bb1a8204c87c7ad7a40c83ed54161f5f4e6853196bb843949222384efd561692e2c4be
Malware Config
Extracted
C:\$Recycle.Bin\RyukReadMe.html
ryuk
http://oc6mkf4efqrjp2ue6qp6vmz4ofyjmlo6dtqiklqb2q546bnqeu66tbyd.onion
Signatures
-
Ryuk
Ransomware distributed via existing botnets, often Trickbot or Emotet.
-
Executes dropped EXE 3 IoCs
Processes:
PFeXAUzHLrep.exeUpHVkmBhClan.exeoLKOhKLNOlan.exepid process 1164 PFeXAUzHLrep.exe 1148 UpHVkmBhClan.exe 968 oLKOhKLNOlan.exe -
Loads dropped DLL 3 IoCs
Processes:
rundll32.exepid process 1680 rundll32.exe 1680 rundll32.exe 1680 rundll32.exe -
Modifies file permissions 1 TTPs 2 IoCs
Processes:
icacls.exeicacls.exepid process 1964 icacls.exe 1924 icacls.exe -
Drops file in System32 directory 6 IoCs
Processes:
rundll32.exedescription ioc process File created C:\Windows\SysWOW64\oLKOhKLNOlan.exe rundll32.exe File opened for modification C:\Windows\SysWOW64\oLKOhKLNOlan.exe rundll32.exe File created C:\Windows\SysWOW64\PFeXAUzHLrep.exe rundll32.exe File opened for modification C:\Windows\SysWOW64\PFeXAUzHLrep.exe rundll32.exe File created C:\Windows\SysWOW64\UpHVkmBhClan.exe rundll32.exe File opened for modification C:\Windows\SysWOW64\UpHVkmBhClan.exe rundll32.exe -
Drops file in Program Files directory 2 IoCs
Processes:
rundll32.exedescription ioc process File opened for modification C:\Program Files\RyukReadMe.html rundll32.exe File opened for modification C:\Program Files\7-Zip\RyukReadMe.html rundll32.exe -
Suspicious use of WriteProcessMemory 27 IoCs
Processes:
rundll32.exerundll32.exedescription pid process target process PID 1652 wrote to memory of 1680 1652 rundll32.exe rundll32.exe PID 1652 wrote to memory of 1680 1652 rundll32.exe rundll32.exe PID 1652 wrote to memory of 1680 1652 rundll32.exe rundll32.exe PID 1652 wrote to memory of 1680 1652 rundll32.exe rundll32.exe PID 1652 wrote to memory of 1680 1652 rundll32.exe rundll32.exe PID 1652 wrote to memory of 1680 1652 rundll32.exe rundll32.exe PID 1652 wrote to memory of 1680 1652 rundll32.exe rundll32.exe PID 1680 wrote to memory of 1164 1680 rundll32.exe PFeXAUzHLrep.exe PID 1680 wrote to memory of 1164 1680 rundll32.exe PFeXAUzHLrep.exe PID 1680 wrote to memory of 1164 1680 rundll32.exe PFeXAUzHLrep.exe PID 1680 wrote to memory of 1164 1680 rundll32.exe PFeXAUzHLrep.exe PID 1680 wrote to memory of 1148 1680 rundll32.exe UpHVkmBhClan.exe PID 1680 wrote to memory of 1148 1680 rundll32.exe UpHVkmBhClan.exe PID 1680 wrote to memory of 1148 1680 rundll32.exe UpHVkmBhClan.exe PID 1680 wrote to memory of 1148 1680 rundll32.exe UpHVkmBhClan.exe PID 1680 wrote to memory of 968 1680 rundll32.exe oLKOhKLNOlan.exe PID 1680 wrote to memory of 968 1680 rundll32.exe oLKOhKLNOlan.exe PID 1680 wrote to memory of 968 1680 rundll32.exe oLKOhKLNOlan.exe PID 1680 wrote to memory of 968 1680 rundll32.exe oLKOhKLNOlan.exe PID 1680 wrote to memory of 1964 1680 rundll32.exe icacls.exe PID 1680 wrote to memory of 1964 1680 rundll32.exe icacls.exe PID 1680 wrote to memory of 1964 1680 rundll32.exe icacls.exe PID 1680 wrote to memory of 1964 1680 rundll32.exe icacls.exe PID 1680 wrote to memory of 1924 1680 rundll32.exe icacls.exe PID 1680 wrote to memory of 1924 1680 rundll32.exe icacls.exe PID 1680 wrote to memory of 1924 1680 rundll32.exe icacls.exe PID 1680 wrote to memory of 1924 1680 rundll32.exe icacls.exe
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\c7f8289950b0d8aa97dceadf2a98aef51886710d56a5283b889c9ad191531028.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:1652 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\c7f8289950b0d8aa97dceadf2a98aef51886710d56a5283b889c9ad191531028.dll,#12⤵
- Loads dropped DLL
- Drops file in System32 directory
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1680 -
C:\Windows\SysWOW64\PFeXAUzHLrep.exe"C:\Windows\SysWOW64\PFeXAUzHLrep.exe" 9 REP3⤵
- Executes dropped EXE
PID:1164 -
C:\Windows\SysWOW64\UpHVkmBhClan.exe"C:\Windows\SysWOW64\UpHVkmBhClan.exe" 8 LAN3⤵
- Executes dropped EXE
PID:1148 -
C:\Windows\SysWOW64\oLKOhKLNOlan.exe"C:\Windows\SysWOW64\oLKOhKLNOlan.exe" 8 LAN3⤵
- Executes dropped EXE
PID:968 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\*" /grant Everyone:F /T /C /Q3⤵
- Modifies file permissions
PID:1964 -
C:\Windows\SysWOW64\icacls.exeicacls "D:\*" /grant Everyone:F /T /C /Q3⤵
- Modifies file permissions
PID:1924
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
MD5
98d3b55cce54a33a6648f5b02a11f65d
SHA18c0fd3cb0ab6b4bf962199b2187d0984490fa8ef
SHA256807979e800f4efcf68130c5b6c5af3c333c76e8b7198419ab0a2966a84322131
SHA5129e8d9707a15bdd0e6a7ee360359d01220c5fe95ff472bef0c7460c2749eb8a1a480392b426a62709838d1260a25cff8f5da512eedd61fe2485ca61f3df451a15
-
MD5
98d3b55cce54a33a6648f5b02a11f65d
SHA18c0fd3cb0ab6b4bf962199b2187d0984490fa8ef
SHA256807979e800f4efcf68130c5b6c5af3c333c76e8b7198419ab0a2966a84322131
SHA5129e8d9707a15bdd0e6a7ee360359d01220c5fe95ff472bef0c7460c2749eb8a1a480392b426a62709838d1260a25cff8f5da512eedd61fe2485ca61f3df451a15
-
MD5
98d3b55cce54a33a6648f5b02a11f65d
SHA18c0fd3cb0ab6b4bf962199b2187d0984490fa8ef
SHA256807979e800f4efcf68130c5b6c5af3c333c76e8b7198419ab0a2966a84322131
SHA5129e8d9707a15bdd0e6a7ee360359d01220c5fe95ff472bef0c7460c2749eb8a1a480392b426a62709838d1260a25cff8f5da512eedd61fe2485ca61f3df451a15
-
MD5
98d3b55cce54a33a6648f5b02a11f65d
SHA18c0fd3cb0ab6b4bf962199b2187d0984490fa8ef
SHA256807979e800f4efcf68130c5b6c5af3c333c76e8b7198419ab0a2966a84322131
SHA5129e8d9707a15bdd0e6a7ee360359d01220c5fe95ff472bef0c7460c2749eb8a1a480392b426a62709838d1260a25cff8f5da512eedd61fe2485ca61f3df451a15
-
MD5
98d3b55cce54a33a6648f5b02a11f65d
SHA18c0fd3cb0ab6b4bf962199b2187d0984490fa8ef
SHA256807979e800f4efcf68130c5b6c5af3c333c76e8b7198419ab0a2966a84322131
SHA5129e8d9707a15bdd0e6a7ee360359d01220c5fe95ff472bef0c7460c2749eb8a1a480392b426a62709838d1260a25cff8f5da512eedd61fe2485ca61f3df451a15
-
MD5
98d3b55cce54a33a6648f5b02a11f65d
SHA18c0fd3cb0ab6b4bf962199b2187d0984490fa8ef
SHA256807979e800f4efcf68130c5b6c5af3c333c76e8b7198419ab0a2966a84322131
SHA5129e8d9707a15bdd0e6a7ee360359d01220c5fe95ff472bef0c7460c2749eb8a1a480392b426a62709838d1260a25cff8f5da512eedd61fe2485ca61f3df451a15
-
MD5
98d3b55cce54a33a6648f5b02a11f65d
SHA18c0fd3cb0ab6b4bf962199b2187d0984490fa8ef
SHA256807979e800f4efcf68130c5b6c5af3c333c76e8b7198419ab0a2966a84322131
SHA5129e8d9707a15bdd0e6a7ee360359d01220c5fe95ff472bef0c7460c2749eb8a1a480392b426a62709838d1260a25cff8f5da512eedd61fe2485ca61f3df451a15
-
MD5
98d3b55cce54a33a6648f5b02a11f65d
SHA18c0fd3cb0ab6b4bf962199b2187d0984490fa8ef
SHA256807979e800f4efcf68130c5b6c5af3c333c76e8b7198419ab0a2966a84322131
SHA5129e8d9707a15bdd0e6a7ee360359d01220c5fe95ff472bef0c7460c2749eb8a1a480392b426a62709838d1260a25cff8f5da512eedd61fe2485ca61f3df451a15
-
MD5
98d3b55cce54a33a6648f5b02a11f65d
SHA18c0fd3cb0ab6b4bf962199b2187d0984490fa8ef
SHA256807979e800f4efcf68130c5b6c5af3c333c76e8b7198419ab0a2966a84322131
SHA5129e8d9707a15bdd0e6a7ee360359d01220c5fe95ff472bef0c7460c2749eb8a1a480392b426a62709838d1260a25cff8f5da512eedd61fe2485ca61f3df451a15
-
MD5
98d3b55cce54a33a6648f5b02a11f65d
SHA18c0fd3cb0ab6b4bf962199b2187d0984490fa8ef
SHA256807979e800f4efcf68130c5b6c5af3c333c76e8b7198419ab0a2966a84322131
SHA5129e8d9707a15bdd0e6a7ee360359d01220c5fe95ff472bef0c7460c2749eb8a1a480392b426a62709838d1260a25cff8f5da512eedd61fe2485ca61f3df451a15
-
MD5
98d3b55cce54a33a6648f5b02a11f65d
SHA18c0fd3cb0ab6b4bf962199b2187d0984490fa8ef
SHA256807979e800f4efcf68130c5b6c5af3c333c76e8b7198419ab0a2966a84322131
SHA5129e8d9707a15bdd0e6a7ee360359d01220c5fe95ff472bef0c7460c2749eb8a1a480392b426a62709838d1260a25cff8f5da512eedd61fe2485ca61f3df451a15
-
MD5
98d3b55cce54a33a6648f5b02a11f65d
SHA18c0fd3cb0ab6b4bf962199b2187d0984490fa8ef
SHA256807979e800f4efcf68130c5b6c5af3c333c76e8b7198419ab0a2966a84322131
SHA5129e8d9707a15bdd0e6a7ee360359d01220c5fe95ff472bef0c7460c2749eb8a1a480392b426a62709838d1260a25cff8f5da512eedd61fe2485ca61f3df451a15
-
MD5
98d3b55cce54a33a6648f5b02a11f65d
SHA18c0fd3cb0ab6b4bf962199b2187d0984490fa8ef
SHA256807979e800f4efcf68130c5b6c5af3c333c76e8b7198419ab0a2966a84322131
SHA5129e8d9707a15bdd0e6a7ee360359d01220c5fe95ff472bef0c7460c2749eb8a1a480392b426a62709838d1260a25cff8f5da512eedd61fe2485ca61f3df451a15
-
MD5
98d3b55cce54a33a6648f5b02a11f65d
SHA18c0fd3cb0ab6b4bf962199b2187d0984490fa8ef
SHA256807979e800f4efcf68130c5b6c5af3c333c76e8b7198419ab0a2966a84322131
SHA5129e8d9707a15bdd0e6a7ee360359d01220c5fe95ff472bef0c7460c2749eb8a1a480392b426a62709838d1260a25cff8f5da512eedd61fe2485ca61f3df451a15
-
MD5
98d3b55cce54a33a6648f5b02a11f65d
SHA18c0fd3cb0ab6b4bf962199b2187d0984490fa8ef
SHA256807979e800f4efcf68130c5b6c5af3c333c76e8b7198419ab0a2966a84322131
SHA5129e8d9707a15bdd0e6a7ee360359d01220c5fe95ff472bef0c7460c2749eb8a1a480392b426a62709838d1260a25cff8f5da512eedd61fe2485ca61f3df451a15
-
MD5
98d3b55cce54a33a6648f5b02a11f65d
SHA18c0fd3cb0ab6b4bf962199b2187d0984490fa8ef
SHA256807979e800f4efcf68130c5b6c5af3c333c76e8b7198419ab0a2966a84322131
SHA5129e8d9707a15bdd0e6a7ee360359d01220c5fe95ff472bef0c7460c2749eb8a1a480392b426a62709838d1260a25cff8f5da512eedd61fe2485ca61f3df451a15
-
MD5
98d3b55cce54a33a6648f5b02a11f65d
SHA18c0fd3cb0ab6b4bf962199b2187d0984490fa8ef
SHA256807979e800f4efcf68130c5b6c5af3c333c76e8b7198419ab0a2966a84322131
SHA5129e8d9707a15bdd0e6a7ee360359d01220c5fe95ff472bef0c7460c2749eb8a1a480392b426a62709838d1260a25cff8f5da512eedd61fe2485ca61f3df451a15
-
MD5
98d3b55cce54a33a6648f5b02a11f65d
SHA18c0fd3cb0ab6b4bf962199b2187d0984490fa8ef
SHA256807979e800f4efcf68130c5b6c5af3c333c76e8b7198419ab0a2966a84322131
SHA5129e8d9707a15bdd0e6a7ee360359d01220c5fe95ff472bef0c7460c2749eb8a1a480392b426a62709838d1260a25cff8f5da512eedd61fe2485ca61f3df451a15
-
MD5
98d3b55cce54a33a6648f5b02a11f65d
SHA18c0fd3cb0ab6b4bf962199b2187d0984490fa8ef
SHA256807979e800f4efcf68130c5b6c5af3c333c76e8b7198419ab0a2966a84322131
SHA5129e8d9707a15bdd0e6a7ee360359d01220c5fe95ff472bef0c7460c2749eb8a1a480392b426a62709838d1260a25cff8f5da512eedd61fe2485ca61f3df451a15
-
MD5
98d3b55cce54a33a6648f5b02a11f65d
SHA18c0fd3cb0ab6b4bf962199b2187d0984490fa8ef
SHA256807979e800f4efcf68130c5b6c5af3c333c76e8b7198419ab0a2966a84322131
SHA5129e8d9707a15bdd0e6a7ee360359d01220c5fe95ff472bef0c7460c2749eb8a1a480392b426a62709838d1260a25cff8f5da512eedd61fe2485ca61f3df451a15
-
MD5
98d3b55cce54a33a6648f5b02a11f65d
SHA18c0fd3cb0ab6b4bf962199b2187d0984490fa8ef
SHA256807979e800f4efcf68130c5b6c5af3c333c76e8b7198419ab0a2966a84322131
SHA5129e8d9707a15bdd0e6a7ee360359d01220c5fe95ff472bef0c7460c2749eb8a1a480392b426a62709838d1260a25cff8f5da512eedd61fe2485ca61f3df451a15
-
MD5
98d3b55cce54a33a6648f5b02a11f65d
SHA18c0fd3cb0ab6b4bf962199b2187d0984490fa8ef
SHA256807979e800f4efcf68130c5b6c5af3c333c76e8b7198419ab0a2966a84322131
SHA5129e8d9707a15bdd0e6a7ee360359d01220c5fe95ff472bef0c7460c2749eb8a1a480392b426a62709838d1260a25cff8f5da512eedd61fe2485ca61f3df451a15
-
MD5
98d3b55cce54a33a6648f5b02a11f65d
SHA18c0fd3cb0ab6b4bf962199b2187d0984490fa8ef
SHA256807979e800f4efcf68130c5b6c5af3c333c76e8b7198419ab0a2966a84322131
SHA5129e8d9707a15bdd0e6a7ee360359d01220c5fe95ff472bef0c7460c2749eb8a1a480392b426a62709838d1260a25cff8f5da512eedd61fe2485ca61f3df451a15
-
MD5
98d3b55cce54a33a6648f5b02a11f65d
SHA18c0fd3cb0ab6b4bf962199b2187d0984490fa8ef
SHA256807979e800f4efcf68130c5b6c5af3c333c76e8b7198419ab0a2966a84322131
SHA5129e8d9707a15bdd0e6a7ee360359d01220c5fe95ff472bef0c7460c2749eb8a1a480392b426a62709838d1260a25cff8f5da512eedd61fe2485ca61f3df451a15
-
MD5
98d3b55cce54a33a6648f5b02a11f65d
SHA18c0fd3cb0ab6b4bf962199b2187d0984490fa8ef
SHA256807979e800f4efcf68130c5b6c5af3c333c76e8b7198419ab0a2966a84322131
SHA5129e8d9707a15bdd0e6a7ee360359d01220c5fe95ff472bef0c7460c2749eb8a1a480392b426a62709838d1260a25cff8f5da512eedd61fe2485ca61f3df451a15
-
MD5
98d3b55cce54a33a6648f5b02a11f65d
SHA18c0fd3cb0ab6b4bf962199b2187d0984490fa8ef
SHA256807979e800f4efcf68130c5b6c5af3c333c76e8b7198419ab0a2966a84322131
SHA5129e8d9707a15bdd0e6a7ee360359d01220c5fe95ff472bef0c7460c2749eb8a1a480392b426a62709838d1260a25cff8f5da512eedd61fe2485ca61f3df451a15
-
MD5
51138beea3e2c21ec44d0932c71762a8
SHA18939cf35447b22dd2c6e6f443446acc1bf986d58
SHA2565ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124
SHA512794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d
-
MD5
51138beea3e2c21ec44d0932c71762a8
SHA18939cf35447b22dd2c6e6f443446acc1bf986d58
SHA2565ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124
SHA512794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d
-
MD5
51138beea3e2c21ec44d0932c71762a8
SHA18939cf35447b22dd2c6e6f443446acc1bf986d58
SHA2565ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124
SHA512794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d
-
MD5
51138beea3e2c21ec44d0932c71762a8
SHA18939cf35447b22dd2c6e6f443446acc1bf986d58
SHA2565ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124
SHA512794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d
-
MD5
51138beea3e2c21ec44d0932c71762a8
SHA18939cf35447b22dd2c6e6f443446acc1bf986d58
SHA2565ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124
SHA512794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d
-
MD5
51138beea3e2c21ec44d0932c71762a8
SHA18939cf35447b22dd2c6e6f443446acc1bf986d58
SHA2565ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124
SHA512794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d