Analysis
- max time kernel
151s - max time network
154s - platform
windows7_x64 - resource
win7-20220718-en - resource tags
arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system - submitted
20/07/2022, 04:23
Static task
static1
Behavioral task
behavioral1
Sample
8353f0d91bab88250ba72e1d778b3b3a.dll
Resource
win7-20220718-en
windows7-x64
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
8353f0d91bab88250ba72e1d778b3b3a.dll
Resource
win10v2004-20220414-en
windows10-2004-x64
7 signatures
150 seconds
General
- Target 8353f0d91bab88250ba72e1d778b3b3a.dll
- Size 5.0MB
- Sample220720-eztgnscdap
- SHA256 b34c64c2c6daffc09d5809b20b35ea2e8018e2c81baa95e2048a9bfe7657a359
- MD5 8353f0d91bab88250ba72e1d778b3b3a
- SHA1 87e19be5aa461b939854079a9e78caf260b68aeb
- SHA512 cda1cb5a8a26dc9f359f948b94ef1dcf53b31dc4e9448374aa0ac802be9180833b94d7683c2f6236fcb97a5503705d2f00c91d66888eec7df09f450d9c903aa7
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Signatures
- Wannacry
WannaCry is a ransomware cryptoworm.
- Contacts a large (1325) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
- Executes dropped EXE 3 IoCs
pid Process 1344 mssecsvc.exe 2028 mssecsvc.exe 1732 tasksche.exe - Drops file in System32 directory 1 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat mssecsvc.exe - Drops file in Windows directory 4 IoCs
description ioc Process File created C:\Windows\eee.exe tasksche.exe File created C:\WINDOWS\mssecsvc.exe rundll32.exe File created C:\WINDOWS\tasksche.exe mssecsvc.exe File created C:\Windows\__tmp_rar_sfx_access_check_7081868 tasksche.exe - Modifies data under HKEY_USERS 24 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings mssecsvc.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1" mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2ECDAD0F-3759-4FEC-B738-022767947BEF}\WpadDecisionTime = b0e45435019cd801 mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2ECDAD0F-3759-4FEC-B738-022767947BEF}\WpadDecision = "0" mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-c3-4b-d0-eb-86\WpadDecisionTime = b0e45435019cd801 mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0" mssecsvc.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" mssecsvc.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00c1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvc.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2ECDAD0F-3759-4FEC-B738-022767947BEF}\WpadNetworkName = "Network 3" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2ECDAD0F-3759-4FEC-B738-022767947BEF}\16-c3-4b-d0-eb-86 mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-c3-4b-d0-eb-86\WpadDecisionReason = "1" mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2ECDAD0F-3759-4FEC-B738-022767947BEF} mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2ECDAD0F-3759-4FEC-B738-022767947BEF}\WpadDecisionReason = "1" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-c3-4b-d0-eb-86 mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-c3-4b-d0-eb-86\WpadDecision = "0" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections mssecsvc.exe - Suspicious use of WriteProcessMemory 18 IoCs
description pid Process procid_target PID 1348 wrote to memory of 860 1348 rundll32.exe 28 PID 1348 wrote to memory of 860 1348 rundll32.exe 28 PID 1348 wrote to memory of 860 1348 rundll32.exe 28 PID 1348 wrote to memory of 860 1348 rundll32.exe 28 PID 1348 wrote to memory of 860 1348 rundll32.exe 28 PID 1348 wrote to memory of 860 1348 rundll32.exe 28 PID 1348 wrote to memory of 860 1348 rundll32.exe 28 PID 860 wrote to memory of 1344 860 rundll32.exe 29 PID 860 wrote to memory of 1344 860 rundll32.exe 29 PID 860 wrote to memory of 1344 860 rundll32.exe 29 PID 860 wrote to memory of 1344 860 rundll32.exe 29 PID 1344 wrote to memory of 1732 1344 mssecsvc.exe 32 PID 1344 wrote to memory of 1732 1344 mssecsvc.exe 32 PID 1344 wrote to memory of 1732 1344 mssecsvc.exe 32 PID 1344 wrote to memory of 1732 1344 mssecsvc.exe 32 PID 1344 wrote to memory of 1732 1344 mssecsvc.exe 32 PID 1344 wrote to memory of 1732 1344 mssecsvc.exe 32 PID 1344 wrote to memory of 1732 1344 mssecsvc.exe 32
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\8353f0d91bab88250ba72e1d778b3b3a.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:1348 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\8353f0d91bab88250ba72e1d778b3b3a.dll,#12⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:860 -
C:\WINDOWS\mssecsvc.exeC:\WINDOWS\mssecsvc.exe3⤵
- Executes dropped EXE
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1344 -
C:\WINDOWS\tasksche.exeC:\WINDOWS\tasksche.exe /i4⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:1732
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C:\WINDOWS\mssecsvc.exeC:\WINDOWS\mssecsvc.exe -m security1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2028
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\WINDOWS\mssecsvc.exe
- Size 3.6MB
- SHA256 5a40ca365a0de0fb14b4157c211510500992e487081b90b240652826be4f5be4
- MD5 289f433f0db77dc1ba3d62b5fa643022
- SHA1 ae65ab4c84e2590c46f8f55c31e4866feb406c84
- SHA512 6b1837dc47b805dd9a245203ec85d6fb39b735ac8b999bf9f77b13e171bb1bf2541cec1ff1b233c84fb9623a025a7d8ed842fe1c76275623115b6da665452a83
- SSDEEP 49152:2nsEhPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvtEaue5c/bXZROAxf:ysOoBhz1aRxcSUDk36SAEdhv0Uc/Jf
- MD5 SHA1 SHA512 SSDEEP
- Path C:\WINDOWS\tasksche.exe
- Size 2.0MB
- SHA256 96d082f36ecb73a844ee58162f19fc649dd4fa0a891ac4f3073cc3f5bb9d7050
- MD5 421f32ad10e03b8c41b785253f653cf5
- SHA1 a69c5d7718a386817255ac73fd30a87dd54629a8
- SHA512 2f46fe191f2dac2a4460fae09ea7473ea971a1c7f2cc26485047bb1fd70995d57a9b767c728c56d3a64b98cb2a1d46f172e67507632ba3833d8108b2473ee86a
- SSDEEP 49152:XEhPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvm:XOoBhz1aRxcSUDk36SAEdhvm
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\mssecsvc.exe
- Size 3.6MB
- SHA256 5a40ca365a0de0fb14b4157c211510500992e487081b90b240652826be4f5be4
- MD5 289f433f0db77dc1ba3d62b5fa643022
- SHA1 ae65ab4c84e2590c46f8f55c31e4866feb406c84
- SHA512 6b1837dc47b805dd9a245203ec85d6fb39b735ac8b999bf9f77b13e171bb1bf2541cec1ff1b233c84fb9623a025a7d8ed842fe1c76275623115b6da665452a83
- SSDEEP 49152:2nsEhPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvtEaue5c/bXZROAxf:ysOoBhz1aRxcSUDk36SAEdhv0Uc/Jf
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\mssecsvc.exe
- Size 3.6MB
- SHA256 5a40ca365a0de0fb14b4157c211510500992e487081b90b240652826be4f5be4
- MD5 289f433f0db77dc1ba3d62b5fa643022
- SHA1 ae65ab4c84e2590c46f8f55c31e4866feb406c84
- SHA512 6b1837dc47b805dd9a245203ec85d6fb39b735ac8b999bf9f77b13e171bb1bf2541cec1ff1b233c84fb9623a025a7d8ed842fe1c76275623115b6da665452a83
- SSDEEP 49152:2nsEhPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvtEaue5c/bXZROAxf:ysOoBhz1aRxcSUDk36SAEdhv0Uc/Jf
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\tasksche.exe
- Size 2.0MB
- SHA256 96d082f36ecb73a844ee58162f19fc649dd4fa0a891ac4f3073cc3f5bb9d7050
- MD5 421f32ad10e03b8c41b785253f653cf5
- SHA1 a69c5d7718a386817255ac73fd30a87dd54629a8
- SHA512 2f46fe191f2dac2a4460fae09ea7473ea971a1c7f2cc26485047bb1fd70995d57a9b767c728c56d3a64b98cb2a1d46f172e67507632ba3833d8108b2473ee86a
- SSDEEP 49152:XEhPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvm:XOoBhz1aRxcSUDk36SAEdhvm
- MD5 SHA1 SHA512 SSDEEP