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, 03:58
Static task
static1
Behavioral task
behavioral1
Sample
9591bd448a0e5a78a753a88e30ec8fd7.dll
Resource
win7-20220718-en
windows7-x64
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
9591bd448a0e5a78a753a88e30ec8fd7.dll
Resource
win10v2004-20220718-en
windows10-2004-x64
7 signatures
150 seconds
General
- Target 9591bd448a0e5a78a753a88e30ec8fd7.dll
- Size 5.0MB
- Sample220720-ejhegacbej
- SHA256 cb99a87b7aa2948a6229b949daad62ae9cbadef89969a8238b6f092de382edfa
- MD5 9591bd448a0e5a78a753a88e30ec8fd7
- SHA1 f86eb21299ffaaafa3739fce1aae94686c5f769a
- SHA512 504854b4d0d7df272a042501cc7135d943084449adce56ad333b904c477206a48513154c593a27af4314af42ed34165bd94ce446ad937e4b3091af6a103d6d21
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Signatures
- Wannacry
WannaCry is a ransomware cryptoworm.
- Contacts a large (1275) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
- Executes dropped EXE 3 IoCs
pid Process 1488 mssecsvc.exe 1404 mssecsvc.exe 1424 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 (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{780329E7-A59F-40F9-8B06-5587950E6EE3}\WpadDecision = "0" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{780329E7-A59F-40F9-8B06-5587950E6EE3}\4a-bc-40-ce-d2-8e mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-bc-40-ce-d2-8e\WpadDecisionTime = 807cbbb5fd9bd801 mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-bc-40-ce-d2-8e\WpadDecision = "0" 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 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\{780329E7-A59F-40F9-8B06-5587950E6EE3}\WpadDecisionReason = "1" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-bc-40-ce-d2-8e mssecsvc.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00d1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{780329E7-A59F-40F9-8B06-5587950E6EE3} 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 Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{780329E7-A59F-40F9-8B06-5587950E6EE3}\WpadDecisionTime = 807cbbb5fd9bd801 mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvc.exe 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\History\CachePrefix = "Visited:" mssecsvc.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{780329E7-A59F-40F9-8B06-5587950E6EE3}\WpadNetworkName = "Network 3" mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-bc-40-ce-d2-8e\WpadDecisionReason = "1" 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 (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1" mssecsvc.exe - Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 2020 wrote to memory of 2032 2020 rundll32.exe 28 PID 2020 wrote to memory of 2032 2020 rundll32.exe 28 PID 2020 wrote to memory of 2032 2020 rundll32.exe 28 PID 2020 wrote to memory of 2032 2020 rundll32.exe 28 PID 2020 wrote to memory of 2032 2020 rundll32.exe 28 PID 2020 wrote to memory of 2032 2020 rundll32.exe 28 PID 2020 wrote to memory of 2032 2020 rundll32.exe 28 PID 2032 wrote to memory of 1488 2032 rundll32.exe 29 PID 2032 wrote to memory of 1488 2032 rundll32.exe 29 PID 2032 wrote to memory of 1488 2032 rundll32.exe 29 PID 2032 wrote to memory of 1488 2032 rundll32.exe 29
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\9591bd448a0e5a78a753a88e30ec8fd7.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2020 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\9591bd448a0e5a78a753a88e30ec8fd7.dll,#12⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2032 -
C:\WINDOWS\mssecsvc.exeC:\WINDOWS\mssecsvc.exe3⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:1488 -
C:\WINDOWS\tasksche.exeC:\WINDOWS\tasksche.exe /i4⤵
- Executes dropped EXE
PID:1424
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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:1404
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\WINDOWS\mssecsvc.exe
- Size 3.6MB
- SHA256 f6617ea5f5259656561f03d6def38b45d046c57800f8e63ed909091e8851673c
- MD5 b19d0f770a78183990ab554c005d9e80
- SHA1 ea00742a9fd42895d8c015752ade1d929104a7a8
- SHA512 7d1c6a0c5bbbd6f6c5faedfad146fd6a13f96e09c07cb44f45f4e6b412b6347030865e9e303ad1d94903d1b0045ae45f9f65f17aad186510a762b563b6890a9a
- SSDEEP 49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9PAM:yDqPoBhz1aRxcSUDk36SAEdhvxWa9P5
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\mssecsvc.exe
- Size 3.6MB
- SHA256 f6617ea5f5259656561f03d6def38b45d046c57800f8e63ed909091e8851673c
- MD5 b19d0f770a78183990ab554c005d9e80
- SHA1 ea00742a9fd42895d8c015752ade1d929104a7a8
- SHA512 7d1c6a0c5bbbd6f6c5faedfad146fd6a13f96e09c07cb44f45f4e6b412b6347030865e9e303ad1d94903d1b0045ae45f9f65f17aad186510a762b563b6890a9a
- SSDEEP 49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9PAM:yDqPoBhz1aRxcSUDk36SAEdhvxWa9P5
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\mssecsvc.exe
- Size 3.6MB
- SHA256 f6617ea5f5259656561f03d6def38b45d046c57800f8e63ed909091e8851673c
- MD5 b19d0f770a78183990ab554c005d9e80
- SHA1 ea00742a9fd42895d8c015752ade1d929104a7a8
- SHA512 7d1c6a0c5bbbd6f6c5faedfad146fd6a13f96e09c07cb44f45f4e6b412b6347030865e9e303ad1d94903d1b0045ae45f9f65f17aad186510a762b563b6890a9a
- SSDEEP 49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9PAM:yDqPoBhz1aRxcSUDk36SAEdhvxWa9P5
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\tasksche.exe
- Size 3.4MB
- SHA256 d01348e5db502938d48a9d698c66b33a74893816eb7f63e4c0e445f10fafac41
- MD5 e467c4a1e72c7036f41764185e2973fc
- SHA1 5995408c428d1abbbd9b86e9c8e16e425ecff689
- SHA512 beb51c97e30bda15e1609e85476624f3a4da9ac655a374a5b43d79c92ea2ce0cec7281656a7f9709fb6e9bb3347379f9ea0885fcdb548401d9382effec56a298
- SSDEEP 49152:nQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9PAM:QqPoBhz1aRxcSUDk36SAEdhvxWa9P5
- MD5 SHA1 SHA512 SSDEEP