wannacry | 1d18c87cdc79ab31f7213ebbe9366fbc94a8d2632fda53531680b1b9eccd109d

General

Target

13f8d4f3097e98c843e9a594b7a9c128.dll
Size

5.0MB
MD5

13f8d4f3097e98c843e9a594b7a9c128
SHA1

a808002fdd82d43a7c828ba501880a13e739c512
SHA256

1d18c87cdc79ab31f7213ebbe9366fbc94a8d2632fda53531680b1b9eccd109d
SHA512

782362654e5239fbfd927c415831049024839480e9e2a1f22e589d60a7b686a19be81e1875a6538d6d22886c53752db8abd13c549a09a3b7728eb8ade76eba6d

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (1278) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Scanning
T1046
Executes dropped EXE 2 IoCs

Processes:

mssecsvc.exemssecsvc.exe

pid process

1492 mssecsvc.exe
1088 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\{79924454-FFA8-40FA-B2E0-E50B81BFF94E}\WpadDecision = "0"	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 (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{79924454-FFA8-40FA-B2E0-E50B81BFF94E}\WpadDecisionReason = "1"	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\UNCAsIntranet = "0"	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{79924454-FFA8-40FA-B2E0-E50B81BFF94E}\WpadDecisionTime = 602ed866f89bd801	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{79924454-FFA8-40FA-B2E0-E50B81BFF94E}\WpadNetworkName = "Network 3"	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\12-63-50-77-49-84	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\12-63-50-77-49-84\WpadDecisionReason = "1"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\12-63-50-77-49-84\WpadDecision = "0"	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
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\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00c1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{79924454-FFA8-40FA-B2E0-E50B81BFF94E}	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{79924454-FFA8-40FA-B2E0-E50B81BFF94E}\12-63-50-77-49-84	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\12-63-50-77-49-84\WpadDecisionTime = 602ed866f89bd801	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\Content\CachePrefix	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

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

mssecsvc.exemssecsvc.exe

pid process

1492 mssecsvc.exe
1088 mssecsvc.exe

Suspicious behavior: MapViewOfSection 44 IoCs

Processes:

mssecsvc.exemssecsvc.exe

pid	process
1492	mssecsvc.exe
1492	mssecsvc.exe
1492	mssecsvc.exe
1492	mssecsvc.exe
1492	mssecsvc.exe
1492	mssecsvc.exe
1492	mssecsvc.exe
1492	mssecsvc.exe
1492	mssecsvc.exe
1492	mssecsvc.exe
1492	mssecsvc.exe
1492	mssecsvc.exe
1492	mssecsvc.exe
1492	mssecsvc.exe
1492	mssecsvc.exe
1492	mssecsvc.exe
1492	mssecsvc.exe
1492	mssecsvc.exe
1492	mssecsvc.exe
1492	mssecsvc.exe
1492	mssecsvc.exe
1088	mssecsvc.exe
1088	mssecsvc.exe
1088	mssecsvc.exe
1088	mssecsvc.exe
1088	mssecsvc.exe
1088	mssecsvc.exe
1088	mssecsvc.exe
1088	mssecsvc.exe
1088	mssecsvc.exe
1088	mssecsvc.exe
1088	mssecsvc.exe
1088	mssecsvc.exe
1088	mssecsvc.exe
1088	mssecsvc.exe
1088	mssecsvc.exe
1088	mssecsvc.exe
1088	mssecsvc.exe
1088	mssecsvc.exe
1088	mssecsvc.exe
1088	mssecsvc.exe
1088	mssecsvc.exe
1088	mssecsvc.exe
1088	mssecsvc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

mssecsvc.exemssecsvc.exe

description pid process

Token: SeDebugPrivilege 1492 mssecsvc.exe
Token: SeDebugPrivilege 1088 mssecsvc.exe

description	pid	process
Token: SeDebugPrivilege	1492	mssecsvc.exe
Token: SeDebugPrivilege	1088	mssecsvc.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

rundll32.exerundll32.exemssecsvc.exe

description	pid	process	target process
PID 1620 wrote to memory of 892	1620	rundll32.exe	rundll32.exe
PID 1620 wrote to memory of 892	1620	rundll32.exe	rundll32.exe
PID 1620 wrote to memory of 892	1620	rundll32.exe	rundll32.exe
PID 1620 wrote to memory of 892	1620	rundll32.exe	rundll32.exe
PID 1620 wrote to memory of 892	1620	rundll32.exe	rundll32.exe
PID 1620 wrote to memory of 892	1620	rundll32.exe	rundll32.exe
PID 1620 wrote to memory of 892	1620	rundll32.exe	rundll32.exe
PID 892 wrote to memory of 1492	892	rundll32.exe	mssecsvc.exe
PID 892 wrote to memory of 1492	892	rundll32.exe	mssecsvc.exe
PID 892 wrote to memory of 1492	892	rundll32.exe	mssecsvc.exe
PID 892 wrote to memory of 1492	892	rundll32.exe	mssecsvc.exe
PID 1492 wrote to memory of 368	1492	mssecsvc.exe	wininit.exe
PID 1492 wrote to memory of 368	1492	mssecsvc.exe	wininit.exe
PID 1492 wrote to memory of 368	1492	mssecsvc.exe	wininit.exe
PID 1492 wrote to memory of 368	1492	mssecsvc.exe	wininit.exe
PID 1492 wrote to memory of 368	1492	mssecsvc.exe	wininit.exe
PID 1492 wrote to memory of 368	1492	mssecsvc.exe	wininit.exe
PID 1492 wrote to memory of 368	1492	mssecsvc.exe	wininit.exe
PID 1492 wrote to memory of 384	1492	mssecsvc.exe	csrss.exe
PID 1492 wrote to memory of 384	1492	mssecsvc.exe	csrss.exe
PID 1492 wrote to memory of 384	1492	mssecsvc.exe	csrss.exe
PID 1492 wrote to memory of 384	1492	mssecsvc.exe	csrss.exe
PID 1492 wrote to memory of 384	1492	mssecsvc.exe	csrss.exe
PID 1492 wrote to memory of 384	1492	mssecsvc.exe	csrss.exe
PID 1492 wrote to memory of 384	1492	mssecsvc.exe	csrss.exe
PID 1492 wrote to memory of 420	1492	mssecsvc.exe	winlogon.exe
PID 1492 wrote to memory of 420	1492	mssecsvc.exe	winlogon.exe
PID 1492 wrote to memory of 420	1492	mssecsvc.exe	winlogon.exe
PID 1492 wrote to memory of 420	1492	mssecsvc.exe	winlogon.exe
PID 1492 wrote to memory of 420	1492	mssecsvc.exe	winlogon.exe
PID 1492 wrote to memory of 420	1492	mssecsvc.exe	winlogon.exe
PID 1492 wrote to memory of 420	1492	mssecsvc.exe	winlogon.exe
PID 1492 wrote to memory of 464	1492	mssecsvc.exe	services.exe
PID 1492 wrote to memory of 464	1492	mssecsvc.exe	services.exe
PID 1492 wrote to memory of 464	1492	mssecsvc.exe	services.exe
PID 1492 wrote to memory of 464	1492	mssecsvc.exe	services.exe
PID 1492 wrote to memory of 464	1492	mssecsvc.exe	services.exe
PID 1492 wrote to memory of 464	1492	mssecsvc.exe	services.exe
PID 1492 wrote to memory of 464	1492	mssecsvc.exe	services.exe
PID 1492 wrote to memory of 480	1492	mssecsvc.exe	lsass.exe
PID 1492 wrote to memory of 480	1492	mssecsvc.exe	lsass.exe
PID 1492 wrote to memory of 480	1492	mssecsvc.exe	lsass.exe
PID 1492 wrote to memory of 480	1492	mssecsvc.exe	lsass.exe
PID 1492 wrote to memory of 480	1492	mssecsvc.exe	lsass.exe
PID 1492 wrote to memory of 480	1492	mssecsvc.exe	lsass.exe
PID 1492 wrote to memory of 480	1492	mssecsvc.exe	lsass.exe
PID 1492 wrote to memory of 488	1492	mssecsvc.exe	lsm.exe
PID 1492 wrote to memory of 488	1492	mssecsvc.exe	lsm.exe
PID 1492 wrote to memory of 488	1492	mssecsvc.exe	lsm.exe
PID 1492 wrote to memory of 488	1492	mssecsvc.exe	lsm.exe
PID 1492 wrote to memory of 488	1492	mssecsvc.exe	lsm.exe
PID 1492 wrote to memory of 488	1492	mssecsvc.exe	lsm.exe
PID 1492 wrote to memory of 488	1492	mssecsvc.exe	lsm.exe
PID 1492 wrote to memory of 592	1492	mssecsvc.exe	svchost.exe
PID 1492 wrote to memory of 592	1492	mssecsvc.exe	svchost.exe
PID 1492 wrote to memory of 592	1492	mssecsvc.exe	svchost.exe
PID 1492 wrote to memory of 592	1492	mssecsvc.exe	svchost.exe
PID 1492 wrote to memory of 592	1492	mssecsvc.exe	svchost.exe
PID 1492 wrote to memory of 592	1492	mssecsvc.exe	svchost.exe
PID 1492 wrote to memory of 592	1492	mssecsvc.exe	svchost.exe
PID 1492 wrote to memory of 668	1492	mssecsvc.exe	svchost.exe
PID 1492 wrote to memory of 668	1492	mssecsvc.exe	svchost.exe
PID 1492 wrote to memory of 668	1492	mssecsvc.exe	svchost.exe
PID 1492 wrote to memory of 668	1492	mssecsvc.exe	svchost.exe

C:\Windows\system32\lsass.exe
C:\Windows\system32\lsass.exe
1⤵
PID:480

C:\Windows\system32\services.exe
C:\Windows\system32\services.exe
1⤵
PID:464

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService
2⤵
PID:844

C:\Windows\system32\sppsvc.exe
C:\Windows\system32\sppsvc.exe
2⤵
PID:1136

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
2⤵
PID:1796

C:\Windows\system32\taskhost.exe
"taskhost.exe"
2⤵
PID:1212

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
2⤵
PID:1032

C:\Windows\System32\spoolsv.exe
C:\Windows\System32\spoolsv.exe
2⤵
PID:1020

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k NetworkService
2⤵
PID:240

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

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:728

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k RPCSS
2⤵
PID:668

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k DcomLaunch
2⤵
PID:592

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
3⤵
PID:1488

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:1088

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:420

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:384

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

C:\Windows\system32\lsm.exe
C:\Windows\system32\lsm.exe
2⤵
PID:488

\\?\C:\Windows\system32\wbem\WMIADAP.EXE
wmiadap.exe /F /T /R
1⤵
PID:2012

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1396

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\13f8d4f3097e98c843e9a594b7a9c128.dll,#1
2⤵
- Suspicious use of WriteProcessMemory
PID:1620

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\13f8d4f3097e98c843e9a594b7a9c128.dll,#1
3⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:892

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:1492

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1332

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Scanning

1

T1046

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\WINDOWS\MSSECSVC.EXE

Filesize
3.6MB

MD5
224bb7f0c81b91aea866d27586524bfb

SHA1
a2c3cd6ba0bb7ca69c7df4c43cc7d5d0ecca5273

SHA256
ead5d430902741b5d519e689bea4ed4f1660a441ef23a04440605fc68ca90a08

SHA512
d292d621ec30e1ddf72c2aaab2637f3a9a0ed5a611442c0407017d4944f0b4c404bc210d2d290fb8b71df8530f9e96771621636f38d8a0308f157713d3287ec4

Download Submit
C:\Windows\mssecsvc.exe

Filesize
3.6MB

MD5
224bb7f0c81b91aea866d27586524bfb

SHA1
a2c3cd6ba0bb7ca69c7df4c43cc7d5d0ecca5273

SHA256
ead5d430902741b5d519e689bea4ed4f1660a441ef23a04440605fc68ca90a08

SHA512
d292d621ec30e1ddf72c2aaab2637f3a9a0ed5a611442c0407017d4944f0b4c404bc210d2d290fb8b71df8530f9e96771621636f38d8a0308f157713d3287ec4

Download Submit
C:\Windows\mssecsvc.exe

Filesize
3.6MB

MD5
224bb7f0c81b91aea866d27586524bfb

SHA1
a2c3cd6ba0bb7ca69c7df4c43cc7d5d0ecca5273

SHA256
ead5d430902741b5d519e689bea4ed4f1660a441ef23a04440605fc68ca90a08

SHA512
d292d621ec30e1ddf72c2aaab2637f3a9a0ed5a611442c0407017d4944f0b4c404bc210d2d290fb8b71df8530f9e96771621636f38d8a0308f157713d3287ec4

Download Submit
memory/892-54-0x0000000000000000-mapping.dmp

Download
memory/892-55-0x0000000075A61000-0x0000000075A63000-memory.dmp

Filesize
8KB

Download
memory/1088-61-0x0000000000400000-0x0000000000A70000-memory.dmp

Filesize
6.4MB

Download
memory/1088-66-0x0000000000400000-0x0000000000A70000-memory.dmp

Filesize
6.4MB

Download
memory/1492-56-0x0000000000000000-mapping.dmp

Download
memory/1492-62-0x0000000000400000-0x0000000000A70000-memory.dmp

Filesize
6.4MB

Download
memory/1492-64-0x0000000000400000-0x0000000000A70000-memory.dmp

Filesize
6.4MB

Download
memory/1492-65-0x000000007EF80000-0x000000007EF8A000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads