Analysis
- max time kernel
150s - max time network
153s - platform
windows7_x64 - resource
win7-20220718-en - resource tags
arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system - submitted
20/07/2022, 01:17
Static task
static1
Behavioral task
behavioral1
Sample
769ec37bc4de51581ea222ef38d4f752.dll
Resource
win7-20220718-en
windows7-x64
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
769ec37bc4de51581ea222ef38d4f752.dll
Resource
win10v2004-20220414-en
windows10-2004-x64
7 signatures
150 seconds
General
- Target 769ec37bc4de51581ea222ef38d4f752.dll
- Size 5.0MB
- Sample220720-bnd13aaad8
- SHA256 0ca55fe01cf52696f424100ee6de4e8dd262ce1c83257d22bc3edc42c30fb944
- MD5 769ec37bc4de51581ea222ef38d4f752
- SHA1 3db70422149469e299bf15a45bf4c6bc97a7031c
- SHA512 695c79e1e0bef5395f78928b4275d927d0c3570554f976743235ca93299bc615a5a6408cfc68b19ad9ff6b8330bfef0f21221d048c2d210392796b267a022a24
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Signatures
- Wannacry
WannaCry is a ransomware cryptoworm.
- Contacts a large (989) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
- Executes dropped EXE 3 IoCs
pid Process 1612 mssecsvc.exe 1664 mssecsvc.exe 1504 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 2 IoCs
description ioc Process File created C:\WINDOWS\mssecsvc.exe rundll32.exe File created C:\WINDOWS\tasksche.exe mssecsvc.exe - Modifies data under HKEY_USERS 24 IoCs
description ioc Process 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 = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00d0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A5A17F7-137A-426E-9AC2-40F809C1E4DD}\WpadDecisionReason = "1" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A5A17F7-137A-426E-9AC2-40F809C1E4DD}\a6-6b-26-6b-84-8e mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1" mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A5A17F7-137A-426E-9AC2-40F809C1E4DD}\WpadDecision = "0" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a6-6b-26-6b-84-8e mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a6-6b-26-6b-84-8e\WpadDecisionTime = 40039a47e79bd801 mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a6-6b-26-6b-84-8e\WpadDecision = "0" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A5A17F7-137A-426E-9AC2-40F809C1E4DD} mssecsvc.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A5A17F7-137A-426E-9AC2-40F809C1E4DD}\WpadNetworkName = "Network 3" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A5A17F7-137A-426E-9AC2-40F809C1E4DD}\WpadDecisionTime = 40039a47e79bd801 mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a6-6b-26-6b-84-8e\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\ZoneMap\UNCAsIntranet = "0" mssecsvc.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix mssecsvc.exe - Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 1172 wrote to memory of 1196 1172 rundll32.exe 27 PID 1172 wrote to memory of 1196 1172 rundll32.exe 27 PID 1172 wrote to memory of 1196 1172 rundll32.exe 27 PID 1172 wrote to memory of 1196 1172 rundll32.exe 27 PID 1172 wrote to memory of 1196 1172 rundll32.exe 27 PID 1172 wrote to memory of 1196 1172 rundll32.exe 27 PID 1172 wrote to memory of 1196 1172 rundll32.exe 27 PID 1196 wrote to memory of 1612 1196 rundll32.exe 28 PID 1196 wrote to memory of 1612 1196 rundll32.exe 28 PID 1196 wrote to memory of 1612 1196 rundll32.exe 28 PID 1196 wrote to memory of 1612 1196 rundll32.exe 28
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\769ec37bc4de51581ea222ef38d4f752.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:1172 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\769ec37bc4de51581ea222ef38d4f752.dll,#12⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1196 -
C:\WINDOWS\mssecsvc.exeC:\WINDOWS\mssecsvc.exe3⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:1612 -
C:\WINDOWS\tasksche.exeC:\WINDOWS\tasksche.exe /i4⤵
- Executes dropped EXE
PID:1504
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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:1664
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\WINDOWS\mssecsvc.exe
- Size 3.6MB
- SHA256 909994ae47c3512b079e50e2959afe3ffe36f698b5a8f7e82aee8b4fcf5474cc
- MD5 938c72f8e4f17aacd8399294eef5ccb6
- SHA1 2598c7b3f197f50abb4a337facedcce7cde40e31
- SHA512 5cb83912c5780bfdb30b16cdbdb0fbe35c5ebac3db959d51a1040431aeb5c04d9866116b3b29f8422f37e98283a98b3a9969cef3828ff992f66451c62cac78db
- SSDEEP 49152:XnAQqMSPbcBVQej/1INRx+TSqTdX1H79xMq31iV5KPOry:XDqPoBhz1aRxcSUDfMS1/
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\mssecsvc.exe
- Size 3.6MB
- SHA256 909994ae47c3512b079e50e2959afe3ffe36f698b5a8f7e82aee8b4fcf5474cc
- MD5 938c72f8e4f17aacd8399294eef5ccb6
- SHA1 2598c7b3f197f50abb4a337facedcce7cde40e31
- SHA512 5cb83912c5780bfdb30b16cdbdb0fbe35c5ebac3db959d51a1040431aeb5c04d9866116b3b29f8422f37e98283a98b3a9969cef3828ff992f66451c62cac78db
- SSDEEP 49152:XnAQqMSPbcBVQej/1INRx+TSqTdX1H79xMq31iV5KPOry:XDqPoBhz1aRxcSUDfMS1/
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\mssecsvc.exe
- Size 3.6MB
- SHA256 909994ae47c3512b079e50e2959afe3ffe36f698b5a8f7e82aee8b4fcf5474cc
- MD5 938c72f8e4f17aacd8399294eef5ccb6
- SHA1 2598c7b3f197f50abb4a337facedcce7cde40e31
- SHA512 5cb83912c5780bfdb30b16cdbdb0fbe35c5ebac3db959d51a1040431aeb5c04d9866116b3b29f8422f37e98283a98b3a9969cef3828ff992f66451c62cac78db
- SSDEEP 49152:XnAQqMSPbcBVQej/1INRx+TSqTdX1H79xMq31iV5KPOry:XDqPoBhz1aRxcSUDfMS1/
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\tasksche.exe
- Size 3.4MB
- SHA256 de9af8502448d1b9f2fec43def7cda8b72f7b03571a162237850715e12ea97c2
- MD5 94ed322315708f5a79d5ecbd0171f94e
- SHA1 af6138631fa0692742171530af205d07fbca3e78
- SHA512 c0746b2633eccabc46350d6e336bc25c755d1e478bc0154de8f1decc9cb028eb6a286351ec17668d267818a8fb1959c3d16d875e42f54daeeabde88e9a4382e3
- SSDEEP 49152:nQqMSPbcBVQej/1INRx+TSqTdX1H79xMq31iV5KPOrR:QqPoBhz1aRxcSUDfMS10
- MD5 SHA1 SHA512 SSDEEP