wannacry | b16646ff78586a4be0c309470413db9f9317a1f1548c8482af802d9273e69ef5

General

Target

b16646ff78586a4be0c309470413db9f9317a1f1548c8482af802d9273e69ef5.dll
Size

5.0MB
MD5

17464a712d66c4dc954e392394f920dd
SHA1

45fd965dc3e2a325c1f132f1f30e38ce1d89d44e
SHA256

b16646ff78586a4be0c309470413db9f9317a1f1548c8482af802d9273e69ef5
SHA512

fc97ea8fc0f99c1f15673f2e3d01f39db44f3c5cf35e82b4baca1b503a2684688830d30cc73345b816ddc10ce870c2f69471765630a37ccb843afd352eb3f7d2

Score

10^/10

wannacry ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Executes dropped EXE 2 IoCs

Processes:

mssecsvc.exemssecsvc.exe

pid process

1380 mssecsvc.exe
1528 mssecsvc.exe

Drops file in System32 directory 1 IoCs

Processes:

mssecsvc.exe

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

Processes:

rundll32.exemssecsvc.exe

description ioc process

File created C:\WINDOWS\mssecsvc.exe rundll32.exe
File created C:\WINDOWS\tasksche.exe mssecsvc.exe

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

Processes:

mssecsvc.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-88-93-6a-6c-49\WpadDecisionReason = "1"	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	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 (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7}\WpadDecision = "0"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	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\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7}\WpadDecisionReason = "1"	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-88-93-6a-6c-49\WpadDecisionTime = d0d6c87bc049d701	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-88-93-6a-6c-49\WpadDecision = "0"	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\ZoneMap\	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a070020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7}\WpadDecisionTime = d0d6c87bc049d701	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7}\WpadNetworkName = "Network"	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7}\4a-88-93-6a-6c-49	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
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7}	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-88-93-6a-6c-49	mssecsvc.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

mssecsvc.exemssecsvc.exe

pid process

1380 mssecsvc.exe
1528 mssecsvc.exe

Suspicious behavior: MapViewOfSection 46 IoCs

Processes:

mssecsvc.exemssecsvc.exe

pid	process
1380	mssecsvc.exe
1380	mssecsvc.exe
1380	mssecsvc.exe
1380	mssecsvc.exe
1380	mssecsvc.exe
1380	mssecsvc.exe
1380	mssecsvc.exe
1380	mssecsvc.exe
1380	mssecsvc.exe
1380	mssecsvc.exe
1380	mssecsvc.exe
1380	mssecsvc.exe
1380	mssecsvc.exe
1380	mssecsvc.exe
1380	mssecsvc.exe
1380	mssecsvc.exe
1380	mssecsvc.exe
1380	mssecsvc.exe
1380	mssecsvc.exe
1380	mssecsvc.exe
1380	mssecsvc.exe
1380	mssecsvc.exe
1528	mssecsvc.exe
1528	mssecsvc.exe
1528	mssecsvc.exe
1528	mssecsvc.exe
1528	mssecsvc.exe
1528	mssecsvc.exe
1528	mssecsvc.exe
1528	mssecsvc.exe
1528	mssecsvc.exe
1528	mssecsvc.exe
1528	mssecsvc.exe
1528	mssecsvc.exe
1528	mssecsvc.exe
1528	mssecsvc.exe
1528	mssecsvc.exe
1528	mssecsvc.exe
1528	mssecsvc.exe
1528	mssecsvc.exe
1528	mssecsvc.exe
1528	mssecsvc.exe
1528	mssecsvc.exe
1528	mssecsvc.exe
1528	mssecsvc.exe
1528	mssecsvc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

mssecsvc.exemssecsvc.exe

description pid process

Token: SeDebugPrivilege 1380 mssecsvc.exe
Token: SeDebugPrivilege 1528 mssecsvc.exe

description	pid	process
Token: SeDebugPrivilege	1380	mssecsvc.exe
Token: SeDebugPrivilege	1528	mssecsvc.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

rundll32.exerundll32.exemssecsvc.exe

description	pid	process	target process
PID 1876 wrote to memory of 1060	1876	rundll32.exe	rundll32.exe
PID 1876 wrote to memory of 1060	1876	rundll32.exe	rundll32.exe
PID 1876 wrote to memory of 1060	1876	rundll32.exe	rundll32.exe
PID 1876 wrote to memory of 1060	1876	rundll32.exe	rundll32.exe
PID 1876 wrote to memory of 1060	1876	rundll32.exe	rundll32.exe
PID 1876 wrote to memory of 1060	1876	rundll32.exe	rundll32.exe
PID 1876 wrote to memory of 1060	1876	rundll32.exe	rundll32.exe
PID 1060 wrote to memory of 1380	1060	rundll32.exe	mssecsvc.exe
PID 1060 wrote to memory of 1380	1060	rundll32.exe	mssecsvc.exe
PID 1060 wrote to memory of 1380	1060	rundll32.exe	mssecsvc.exe
PID 1060 wrote to memory of 1380	1060	rundll32.exe	mssecsvc.exe
PID 1380 wrote to memory of 368	1380	mssecsvc.exe	wininit.exe
PID 1380 wrote to memory of 368	1380	mssecsvc.exe	wininit.exe
PID 1380 wrote to memory of 368	1380	mssecsvc.exe	wininit.exe
PID 1380 wrote to memory of 368	1380	mssecsvc.exe	wininit.exe
PID 1380 wrote to memory of 368	1380	mssecsvc.exe	wininit.exe
PID 1380 wrote to memory of 368	1380	mssecsvc.exe	wininit.exe
PID 1380 wrote to memory of 368	1380	mssecsvc.exe	wininit.exe
PID 1380 wrote to memory of 376	1380	mssecsvc.exe	csrss.exe
PID 1380 wrote to memory of 376	1380	mssecsvc.exe	csrss.exe
PID 1380 wrote to memory of 376	1380	mssecsvc.exe	csrss.exe
PID 1380 wrote to memory of 376	1380	mssecsvc.exe	csrss.exe
PID 1380 wrote to memory of 376	1380	mssecsvc.exe	csrss.exe
PID 1380 wrote to memory of 376	1380	mssecsvc.exe	csrss.exe
PID 1380 wrote to memory of 376	1380	mssecsvc.exe	csrss.exe
PID 1380 wrote to memory of 416	1380	mssecsvc.exe	winlogon.exe
PID 1380 wrote to memory of 416	1380	mssecsvc.exe	winlogon.exe
PID 1380 wrote to memory of 416	1380	mssecsvc.exe	winlogon.exe
PID 1380 wrote to memory of 416	1380	mssecsvc.exe	winlogon.exe
PID 1380 wrote to memory of 416	1380	mssecsvc.exe	winlogon.exe
PID 1380 wrote to memory of 416	1380	mssecsvc.exe	winlogon.exe
PID 1380 wrote to memory of 416	1380	mssecsvc.exe	winlogon.exe
PID 1380 wrote to memory of 460	1380	mssecsvc.exe	services.exe
PID 1380 wrote to memory of 460	1380	mssecsvc.exe	services.exe
PID 1380 wrote to memory of 460	1380	mssecsvc.exe	services.exe
PID 1380 wrote to memory of 460	1380	mssecsvc.exe	services.exe
PID 1380 wrote to memory of 460	1380	mssecsvc.exe	services.exe
PID 1380 wrote to memory of 460	1380	mssecsvc.exe	services.exe
PID 1380 wrote to memory of 460	1380	mssecsvc.exe	services.exe
PID 1380 wrote to memory of 476	1380	mssecsvc.exe	lsass.exe
PID 1380 wrote to memory of 476	1380	mssecsvc.exe	lsass.exe
PID 1380 wrote to memory of 476	1380	mssecsvc.exe	lsass.exe
PID 1380 wrote to memory of 476	1380	mssecsvc.exe	lsass.exe
PID 1380 wrote to memory of 476	1380	mssecsvc.exe	lsass.exe
PID 1380 wrote to memory of 476	1380	mssecsvc.exe	lsass.exe
PID 1380 wrote to memory of 476	1380	mssecsvc.exe	lsass.exe
PID 1380 wrote to memory of 484	1380	mssecsvc.exe	lsm.exe
PID 1380 wrote to memory of 484	1380	mssecsvc.exe	lsm.exe
PID 1380 wrote to memory of 484	1380	mssecsvc.exe	lsm.exe
PID 1380 wrote to memory of 484	1380	mssecsvc.exe	lsm.exe
PID 1380 wrote to memory of 484	1380	mssecsvc.exe	lsm.exe
PID 1380 wrote to memory of 484	1380	mssecsvc.exe	lsm.exe
PID 1380 wrote to memory of 484	1380	mssecsvc.exe	lsm.exe
PID 1380 wrote to memory of 584	1380	mssecsvc.exe	svchost.exe
PID 1380 wrote to memory of 584	1380	mssecsvc.exe	svchost.exe
PID 1380 wrote to memory of 584	1380	mssecsvc.exe	svchost.exe
PID 1380 wrote to memory of 584	1380	mssecsvc.exe	svchost.exe
PID 1380 wrote to memory of 584	1380	mssecsvc.exe	svchost.exe
PID 1380 wrote to memory of 584	1380	mssecsvc.exe	svchost.exe
PID 1380 wrote to memory of 584	1380	mssecsvc.exe	svchost.exe
PID 1380 wrote to memory of 660	1380	mssecsvc.exe	svchost.exe
PID 1380 wrote to memory of 660	1380	mssecsvc.exe	svchost.exe
PID 1380 wrote to memory of 660	1380	mssecsvc.exe	svchost.exe
PID 1380 wrote to memory of 660	1380	mssecsvc.exe	svchost.exe

C:\Windows\system32\lsass.exe
C:\Windows\system32\lsass.exe
1⤵
PID:476

C:\Windows\system32\services.exe
C:\Windows\system32\services.exe
1⤵
PID:460

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k DcomLaunch
2⤵
PID:584

C:\Windows\system32\wbem\wmiprvse.exe
C:\Windows\system32\wbem\wmiprvse.exe -Embedding
3⤵
PID:612

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
3⤵
PID:1440

C:\Windows\system32\sppsvc.exe
C:\Windows\system32\sppsvc.exe
2⤵
PID:1764

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
2⤵
PID:1828

C:\Windows\system32\taskhost.exe
"taskhost.exe"
2⤵
PID:1108

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
2⤵
PID:1100

C:\Windows\System32\spoolsv.exe
C:\Windows\System32\spoolsv.exe
2⤵
PID:1032

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k NetworkService
2⤵
PID:292

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs
2⤵
PID:868

C:\Windows\system32\wbem\WMIADAP.EXE
wmiadap.exe /F /T /R
3⤵
PID:836

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService
2⤵
PID:824

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted
2⤵
PID:796

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
2⤵
PID:744

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k RPCSS
2⤵
PID:660

C:\WINDOWS\mssecsvc.exe
C:\WINDOWS\mssecsvc.exe -m security
2⤵
- Executes dropped EXE
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1528

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:416

C:\Windows\system32\csrss.exe
%SystemRoot%\system32\csrss.exe ObjectDirectory=\Windows SharedSection=1024,20480,768 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserServerDllInitialization,3 ServerDll=winsrv:ConServerDllInitialization,2 ServerDll=sxssrv,4 ProfileControl=Off MaxRequestThreads=16
1⤵
PID:376

C:\Windows\system32\wininit.exe
wininit.exe
1⤵
PID:368

C:\Windows\system32\lsm.exe
C:\Windows\system32\lsm.exe
2⤵
PID:484

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1204

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b16646ff78586a4be0c309470413db9f9317a1f1548c8482af802d9273e69ef5.dll,#1
2⤵
- Suspicious use of WriteProcessMemory
PID:1876

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b16646ff78586a4be0c309470413db9f9317a1f1548c8482af802d9273e69ef5.dll,#1
3⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1060

C:\WINDOWS\mssecsvc.exe
C:\WINDOWS\mssecsvc.exe
4⤵
- Executes dropped EXE
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1380

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1176

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\WINDOWS\MSSECSVC.EXE
MD5
ccca5e8df7b968fc829edca79c129d35

SHA1
f8c88dc2f0e2fea59df40322df4c6b5bf7513ab3

SHA256
5b16162218e51f2661bc42706c1dd083e3f919ca754d6fe2acda57ad4b1299ae

SHA512
1a26bbad4b23d11ce1afa099d41d737682e2bf08c0bad7f98644a9af8b58d6e5562ed59e4793c2e64ab0e4785eaf9e2f2e2fd799d906de4598a61bb301836d82

Download Submit
C:\Windows\mssecsvc.exe
MD5
ccca5e8df7b968fc829edca79c129d35

SHA1
f8c88dc2f0e2fea59df40322df4c6b5bf7513ab3

SHA256
5b16162218e51f2661bc42706c1dd083e3f919ca754d6fe2acda57ad4b1299ae

SHA512
1a26bbad4b23d11ce1afa099d41d737682e2bf08c0bad7f98644a9af8b58d6e5562ed59e4793c2e64ab0e4785eaf9e2f2e2fd799d906de4598a61bb301836d82

Download Submit
C:\Windows\mssecsvc.exe
MD5
ccca5e8df7b968fc829edca79c129d35

SHA1
f8c88dc2f0e2fea59df40322df4c6b5bf7513ab3

SHA256
5b16162218e51f2661bc42706c1dd083e3f919ca754d6fe2acda57ad4b1299ae

SHA512
1a26bbad4b23d11ce1afa099d41d737682e2bf08c0bad7f98644a9af8b58d6e5562ed59e4793c2e64ab0e4785eaf9e2f2e2fd799d906de4598a61bb301836d82

Download Submit
memory/1060-59-0x0000000000000000-mapping.dmp

Download
memory/1060-60-0x0000000075891000-0x0000000075893000-memory.dmp

Filesize
8KB

Download
memory/1380-61-0x0000000000000000-mapping.dmp

Download
memory/1380-67-0x000000007EF80000-0x000000007EF8C000-memory.dmp

Filesize
48KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads