wannacry | 69d11b63913d84025f1469123b83bb21066a274f2240f87e119f49362abbc9ca

General

Target

58b38e38995dd82b340de1d5380dce3e.dll
Size

5.0MB
MD5

58b38e38995dd82b340de1d5380dce3e
SHA1

5dbb27635740c905d01cd14a604688387837dc7c
SHA256

69d11b63913d84025f1469123b83bb21066a274f2240f87e119f49362abbc9ca
SHA512

6fb641ce5871dd7939df1bf95617f0fba74b8caff03f12c37e281d61fc5ce42d2664c232baafbc91e28df75953de9154acaaba271a2598eae9cb702f2a7c2ed6

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (1003) 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

1688 mssecsvc.exe
1064 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 (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00d5000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	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\History\CachePrefix = "Visited:"	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\{7985A0AF-B22B-40D1-8CE4-A8185C83F455}\WpadDecision = "0"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\aa-9d-f8-8b-a5-59\WpadDecision = "0"	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\ProxyEnable = "0"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	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\Wpad\{7985A0AF-B22B-40D1-8CE4-A8185C83F455}\WpadNetworkName = "Network 3"	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\aa-9d-f8-8b-a5-59	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7985A0AF-B22B-40D1-8CE4-A8185C83F455}\aa-9d-f8-8b-a5-59	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\aa-9d-f8-8b-a5-59\WpadDecisionReason = "1"	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\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	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\{7985A0AF-B22B-40D1-8CE4-A8185C83F455}	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7985A0AF-B22B-40D1-8CE4-A8185C83F455}\WpadDecisionReason = "1"	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7985A0AF-B22B-40D1-8CE4-A8185C83F455}\WpadDecisionTime = 90aaf17ff69bd801	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\aa-9d-f8-8b-a5-59\WpadDecisionTime = 90aaf17ff69bd801	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

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

mssecsvc.exemssecsvc.exe

pid process

1688 mssecsvc.exe
1064 mssecsvc.exe

Suspicious behavior: MapViewOfSection 44 IoCs

Processes:

mssecsvc.exemssecsvc.exe

pid	process
1688	mssecsvc.exe
1688	mssecsvc.exe
1688	mssecsvc.exe
1688	mssecsvc.exe
1688	mssecsvc.exe
1688	mssecsvc.exe
1688	mssecsvc.exe
1688	mssecsvc.exe
1688	mssecsvc.exe
1688	mssecsvc.exe
1688	mssecsvc.exe
1688	mssecsvc.exe
1688	mssecsvc.exe
1688	mssecsvc.exe
1688	mssecsvc.exe
1688	mssecsvc.exe
1688	mssecsvc.exe
1688	mssecsvc.exe
1688	mssecsvc.exe
1688	mssecsvc.exe
1688	mssecsvc.exe
1064	mssecsvc.exe
1064	mssecsvc.exe
1064	mssecsvc.exe
1064	mssecsvc.exe
1064	mssecsvc.exe
1064	mssecsvc.exe
1064	mssecsvc.exe
1064	mssecsvc.exe
1064	mssecsvc.exe
1064	mssecsvc.exe
1064	mssecsvc.exe
1064	mssecsvc.exe
1064	mssecsvc.exe
1064	mssecsvc.exe
1064	mssecsvc.exe
1064	mssecsvc.exe
1064	mssecsvc.exe
1064	mssecsvc.exe
1064	mssecsvc.exe
1064	mssecsvc.exe
1064	mssecsvc.exe
1064	mssecsvc.exe
1064	mssecsvc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

mssecsvc.exemssecsvc.exe

description pid process

Token: SeDebugPrivilege 1688 mssecsvc.exe
Token: SeDebugPrivilege 1064 mssecsvc.exe

description	pid	process
Token: SeDebugPrivilege	1688	mssecsvc.exe
Token: SeDebugPrivilege	1064	mssecsvc.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

rundll32.exerundll32.exemssecsvc.exe

description	pid	process	target process
PID 1548 wrote to memory of 1696	1548	rundll32.exe	rundll32.exe
PID 1548 wrote to memory of 1696	1548	rundll32.exe	rundll32.exe
PID 1548 wrote to memory of 1696	1548	rundll32.exe	rundll32.exe
PID 1548 wrote to memory of 1696	1548	rundll32.exe	rundll32.exe
PID 1548 wrote to memory of 1696	1548	rundll32.exe	rundll32.exe
PID 1548 wrote to memory of 1696	1548	rundll32.exe	rundll32.exe
PID 1548 wrote to memory of 1696	1548	rundll32.exe	rundll32.exe
PID 1696 wrote to memory of 1688	1696	rundll32.exe	mssecsvc.exe
PID 1696 wrote to memory of 1688	1696	rundll32.exe	mssecsvc.exe
PID 1696 wrote to memory of 1688	1696	rundll32.exe	mssecsvc.exe
PID 1696 wrote to memory of 1688	1696	rundll32.exe	mssecsvc.exe
PID 1688 wrote to memory of 368	1688	mssecsvc.exe	wininit.exe
PID 1688 wrote to memory of 368	1688	mssecsvc.exe	wininit.exe
PID 1688 wrote to memory of 368	1688	mssecsvc.exe	wininit.exe
PID 1688 wrote to memory of 368	1688	mssecsvc.exe	wininit.exe
PID 1688 wrote to memory of 368	1688	mssecsvc.exe	wininit.exe
PID 1688 wrote to memory of 368	1688	mssecsvc.exe	wininit.exe
PID 1688 wrote to memory of 368	1688	mssecsvc.exe	wininit.exe
PID 1688 wrote to memory of 380	1688	mssecsvc.exe	csrss.exe
PID 1688 wrote to memory of 380	1688	mssecsvc.exe	csrss.exe
PID 1688 wrote to memory of 380	1688	mssecsvc.exe	csrss.exe
PID 1688 wrote to memory of 380	1688	mssecsvc.exe	csrss.exe
PID 1688 wrote to memory of 380	1688	mssecsvc.exe	csrss.exe
PID 1688 wrote to memory of 380	1688	mssecsvc.exe	csrss.exe
PID 1688 wrote to memory of 380	1688	mssecsvc.exe	csrss.exe
PID 1688 wrote to memory of 416	1688	mssecsvc.exe	winlogon.exe
PID 1688 wrote to memory of 416	1688	mssecsvc.exe	winlogon.exe
PID 1688 wrote to memory of 416	1688	mssecsvc.exe	winlogon.exe
PID 1688 wrote to memory of 416	1688	mssecsvc.exe	winlogon.exe
PID 1688 wrote to memory of 416	1688	mssecsvc.exe	winlogon.exe
PID 1688 wrote to memory of 416	1688	mssecsvc.exe	winlogon.exe
PID 1688 wrote to memory of 416	1688	mssecsvc.exe	winlogon.exe
PID 1688 wrote to memory of 460	1688	mssecsvc.exe	services.exe
PID 1688 wrote to memory of 460	1688	mssecsvc.exe	services.exe
PID 1688 wrote to memory of 460	1688	mssecsvc.exe	services.exe
PID 1688 wrote to memory of 460	1688	mssecsvc.exe	services.exe
PID 1688 wrote to memory of 460	1688	mssecsvc.exe	services.exe
PID 1688 wrote to memory of 460	1688	mssecsvc.exe	services.exe
PID 1688 wrote to memory of 460	1688	mssecsvc.exe	services.exe
PID 1688 wrote to memory of 476	1688	mssecsvc.exe	lsass.exe
PID 1688 wrote to memory of 476	1688	mssecsvc.exe	lsass.exe
PID 1688 wrote to memory of 476	1688	mssecsvc.exe	lsass.exe
PID 1688 wrote to memory of 476	1688	mssecsvc.exe	lsass.exe
PID 1688 wrote to memory of 476	1688	mssecsvc.exe	lsass.exe
PID 1688 wrote to memory of 476	1688	mssecsvc.exe	lsass.exe
PID 1688 wrote to memory of 476	1688	mssecsvc.exe	lsass.exe
PID 1688 wrote to memory of 484	1688	mssecsvc.exe	lsm.exe
PID 1688 wrote to memory of 484	1688	mssecsvc.exe	lsm.exe
PID 1688 wrote to memory of 484	1688	mssecsvc.exe	lsm.exe
PID 1688 wrote to memory of 484	1688	mssecsvc.exe	lsm.exe
PID 1688 wrote to memory of 484	1688	mssecsvc.exe	lsm.exe
PID 1688 wrote to memory of 484	1688	mssecsvc.exe	lsm.exe
PID 1688 wrote to memory of 484	1688	mssecsvc.exe	lsm.exe
PID 1688 wrote to memory of 600	1688	mssecsvc.exe	svchost.exe
PID 1688 wrote to memory of 600	1688	mssecsvc.exe	svchost.exe
PID 1688 wrote to memory of 600	1688	mssecsvc.exe	svchost.exe
PID 1688 wrote to memory of 600	1688	mssecsvc.exe	svchost.exe
PID 1688 wrote to memory of 600	1688	mssecsvc.exe	svchost.exe
PID 1688 wrote to memory of 600	1688	mssecsvc.exe	svchost.exe
PID 1688 wrote to memory of 600	1688	mssecsvc.exe	svchost.exe
PID 1688 wrote to memory of 680	1688	mssecsvc.exe	svchost.exe
PID 1688 wrote to memory of 680	1688	mssecsvc.exe	svchost.exe
PID 1688 wrote to memory of 680	1688	mssecsvc.exe	svchost.exe
PID 1688 wrote to memory of 680	1688	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 LocalService
2⤵
PID:852

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
2⤵
PID:1044

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
2⤵
PID:1788

C:\Windows\system32\sppsvc.exe
C:\Windows\system32\sppsvc.exe
2⤵
PID:752

C:\Windows\system32\taskhost.exe
"taskhost.exe"
2⤵
PID:1136

C:\Windows\System32\spoolsv.exe
C:\Windows\System32\spoolsv.exe
2⤵
PID:324

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k NetworkService
2⤵
PID:280

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs
2⤵
PID:876

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted
2⤵
PID:820

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
2⤵
PID:764

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k RPCSS
2⤵
PID:680

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k DcomLaunch
2⤵
PID:600

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
3⤵
PID:2016

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:1064

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:380

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\system32\wbem\WMIADAP.EXE
wmiadap.exe /F /T /R
1⤵
PID:1920

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\58b38e38995dd82b340de1d5380dce3e.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1548

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\58b38e38995dd82b340de1d5380dce3e.dll,#1
2⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1696

C:\WINDOWS\mssecsvc.exe
C:\WINDOWS\mssecsvc.exe
3⤵
- Executes dropped EXE
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1688

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1256

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1232

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

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Downloads

C:\WINDOWS\MSSECSVC.EXE

Filesize
3.6MB

MD5
7a0f17d4ff9a7e47284befa83fd74ea3

SHA1
eff4acb8209d2c10fb10ab83a13e2a89ae9247d8

SHA256
41849f27e31c05d041eb5e33e4026f3361741d49be5c651fe69d0f621b782ada

SHA512
f0bd97a80a88042fb4ee90e8f5263ee67243a3c86463bb6cf70aef873ceec8e5b19499f915b9ed1433f0cac6586d840bd51b03b4d3a29c9396fb02d67b3e6190

Download Submit
C:\Windows\mssecsvc.exe

Filesize
3.6MB

MD5
7a0f17d4ff9a7e47284befa83fd74ea3

SHA1
eff4acb8209d2c10fb10ab83a13e2a89ae9247d8

SHA256
41849f27e31c05d041eb5e33e4026f3361741d49be5c651fe69d0f621b782ada

SHA512
f0bd97a80a88042fb4ee90e8f5263ee67243a3c86463bb6cf70aef873ceec8e5b19499f915b9ed1433f0cac6586d840bd51b03b4d3a29c9396fb02d67b3e6190

Download Submit
C:\Windows\mssecsvc.exe

Filesize
3.6MB

MD5
7a0f17d4ff9a7e47284befa83fd74ea3

SHA1
eff4acb8209d2c10fb10ab83a13e2a89ae9247d8

SHA256
41849f27e31c05d041eb5e33e4026f3361741d49be5c651fe69d0f621b782ada

SHA512
f0bd97a80a88042fb4ee90e8f5263ee67243a3c86463bb6cf70aef873ceec8e5b19499f915b9ed1433f0cac6586d840bd51b03b4d3a29c9396fb02d67b3e6190

Download Submit
memory/1064-62-0x0000000000400000-0x0000000000A72000-memory.dmp

Filesize
6.4MB

Download
memory/1064-66-0x0000000000400000-0x0000000000A72000-memory.dmp

Filesize
6.4MB

Download
memory/1688-56-0x0000000000000000-mapping.dmp

Download
memory/1688-59-0x0000000000400000-0x0000000000A72000-memory.dmp

Filesize
6.4MB

Download
memory/1688-64-0x0000000000400000-0x0000000000A72000-memory.dmp

Filesize
6.4MB

Download
memory/1688-65-0x000000007EF80000-0x000000007EF8C000-memory.dmp

Filesize
48KB

Download
memory/1696-54-0x0000000000000000-mapping.dmp

Download
memory/1696-55-0x0000000075871000-0x0000000075873000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads