wannacry | 1f99061d149dd020b4c28258638e914750262c42962d58c8a638ee9023e7e4a9

General

Target

2d4a5c543b416f5456473650bc66d699_JaffaCakes118.dll
Size

5.0MB
MD5

2d4a5c543b416f5456473650bc66d699
SHA1

343820a3130c2a38c604c96ed5bb7ae3b2da4318
SHA256

1f99061d149dd020b4c28258638e914750262c42962d58c8a638ee9023e7e4a9
SHA512

979220d5eb7b3727cd672ceff79c3632f658798de89442c10922b7df6a039eaca301034049e520b63f108b9a0adaffb8b1e0695646662f5ea8b8b1cb2538a15c
SSDEEP

98304:kDqPoBhz1aRxcSUDk36SAEdhvxWa9P593Rk:kDqPe1Cxcxk3ZAEUadzRk

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3214) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046
Executes dropped EXE 2 IoCs

Processes:

mssecsvc.exemssecsvc.exe

pid process

3016 mssecsvc.exe
2684 mssecsvc.exe
Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046

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
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 (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f010d000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d2-1d-6f-9e-7e-e5	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d2-1d-6f-9e-7e-e5\WpadDecision = "0"	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E214E49E-1B2B-4E12-B1EE-366AB361A63E}	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E214E49E-1B2B-4E12-B1EE-366AB361A63E}\WpadDecisionTime = c0dc82b790a2da01	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E214E49E-1B2B-4E12-B1EE-366AB361A63E}\WpadNetworkName = "Network 3"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d2-1d-6f-9e-7e-e5\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\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\ZoneMap\	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\History\CachePrefix = "Visited:"	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\UNCAsIntranet = "0"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E214E49E-1B2B-4E12-B1EE-366AB361A63E}\WpadDecisionReason = "1"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E214E49E-1B2B-4E12-B1EE-366AB361A63E}\WpadDecision = "0"	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E214E49E-1B2B-4E12-B1EE-366AB361A63E}\d2-1d-6f-9e-7e-e5	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d2-1d-6f-9e-7e-e5\WpadDecisionTime = c0dc82b790a2da01	mssecsvc.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

mssecsvc.exemssecsvc.exe

pid process

3016 mssecsvc.exe
2684 mssecsvc.exe

Suspicious behavior: MapViewOfSection 43 IoCs

Processes:

mssecsvc.exemssecsvc.exe

pid	process
3016	mssecsvc.exe
3016	mssecsvc.exe
3016	mssecsvc.exe
3016	mssecsvc.exe
3016	mssecsvc.exe
3016	mssecsvc.exe
3016	mssecsvc.exe
3016	mssecsvc.exe
3016	mssecsvc.exe
3016	mssecsvc.exe
3016	mssecsvc.exe
3016	mssecsvc.exe
3016	mssecsvc.exe
3016	mssecsvc.exe
3016	mssecsvc.exe
3016	mssecsvc.exe
3016	mssecsvc.exe
3016	mssecsvc.exe
3016	mssecsvc.exe
3016	mssecsvc.exe
3016	mssecsvc.exe
2684	mssecsvc.exe
2684	mssecsvc.exe
2684	mssecsvc.exe
2684	mssecsvc.exe
2684	mssecsvc.exe
2684	mssecsvc.exe
2684	mssecsvc.exe
2684	mssecsvc.exe
2684	mssecsvc.exe
2684	mssecsvc.exe
2684	mssecsvc.exe
2684	mssecsvc.exe
2684	mssecsvc.exe
2684	mssecsvc.exe
2684	mssecsvc.exe
2684	mssecsvc.exe
2684	mssecsvc.exe
2684	mssecsvc.exe
2684	mssecsvc.exe
2684	mssecsvc.exe
2684	mssecsvc.exe
2684	mssecsvc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

mssecsvc.exemssecsvc.exe

description pid process

Token: SeDebugPrivilege 3016 mssecsvc.exe
Token: SeDebugPrivilege 2684 mssecsvc.exe

description	pid	process
Token: SeDebugPrivilege	3016	mssecsvc.exe
Token: SeDebugPrivilege	2684	mssecsvc.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

rundll32.exerundll32.exemssecsvc.exe

description	pid	process	target process
PID 2168 wrote to memory of 2040	2168	rundll32.exe	rundll32.exe
PID 2168 wrote to memory of 2040	2168	rundll32.exe	rundll32.exe
PID 2168 wrote to memory of 2040	2168	rundll32.exe	rundll32.exe
PID 2168 wrote to memory of 2040	2168	rundll32.exe	rundll32.exe
PID 2168 wrote to memory of 2040	2168	rundll32.exe	rundll32.exe
PID 2168 wrote to memory of 2040	2168	rundll32.exe	rundll32.exe
PID 2168 wrote to memory of 2040	2168	rundll32.exe	rundll32.exe
PID 2040 wrote to memory of 3016	2040	rundll32.exe	mssecsvc.exe
PID 2040 wrote to memory of 3016	2040	rundll32.exe	mssecsvc.exe
PID 2040 wrote to memory of 3016	2040	rundll32.exe	mssecsvc.exe
PID 2040 wrote to memory of 3016	2040	rundll32.exe	mssecsvc.exe
PID 3016 wrote to memory of 388	3016	mssecsvc.exe	wininit.exe
PID 3016 wrote to memory of 388	3016	mssecsvc.exe	wininit.exe
PID 3016 wrote to memory of 388	3016	mssecsvc.exe	wininit.exe
PID 3016 wrote to memory of 388	3016	mssecsvc.exe	wininit.exe
PID 3016 wrote to memory of 388	3016	mssecsvc.exe	wininit.exe
PID 3016 wrote to memory of 388	3016	mssecsvc.exe	wininit.exe
PID 3016 wrote to memory of 388	3016	mssecsvc.exe	wininit.exe
PID 3016 wrote to memory of 396	3016	mssecsvc.exe	csrss.exe
PID 3016 wrote to memory of 396	3016	mssecsvc.exe	csrss.exe
PID 3016 wrote to memory of 396	3016	mssecsvc.exe	csrss.exe
PID 3016 wrote to memory of 396	3016	mssecsvc.exe	csrss.exe
PID 3016 wrote to memory of 396	3016	mssecsvc.exe	csrss.exe
PID 3016 wrote to memory of 396	3016	mssecsvc.exe	csrss.exe
PID 3016 wrote to memory of 396	3016	mssecsvc.exe	csrss.exe
PID 3016 wrote to memory of 436	3016	mssecsvc.exe	winlogon.exe
PID 3016 wrote to memory of 436	3016	mssecsvc.exe	winlogon.exe
PID 3016 wrote to memory of 436	3016	mssecsvc.exe	winlogon.exe
PID 3016 wrote to memory of 436	3016	mssecsvc.exe	winlogon.exe
PID 3016 wrote to memory of 436	3016	mssecsvc.exe	winlogon.exe
PID 3016 wrote to memory of 436	3016	mssecsvc.exe	winlogon.exe
PID 3016 wrote to memory of 436	3016	mssecsvc.exe	winlogon.exe
PID 3016 wrote to memory of 480	3016	mssecsvc.exe	services.exe
PID 3016 wrote to memory of 480	3016	mssecsvc.exe	services.exe
PID 3016 wrote to memory of 480	3016	mssecsvc.exe	services.exe
PID 3016 wrote to memory of 480	3016	mssecsvc.exe	services.exe
PID 3016 wrote to memory of 480	3016	mssecsvc.exe	services.exe
PID 3016 wrote to memory of 480	3016	mssecsvc.exe	services.exe
PID 3016 wrote to memory of 480	3016	mssecsvc.exe	services.exe
PID 3016 wrote to memory of 496	3016	mssecsvc.exe	lsass.exe
PID 3016 wrote to memory of 496	3016	mssecsvc.exe	lsass.exe
PID 3016 wrote to memory of 496	3016	mssecsvc.exe	lsass.exe
PID 3016 wrote to memory of 496	3016	mssecsvc.exe	lsass.exe
PID 3016 wrote to memory of 496	3016	mssecsvc.exe	lsass.exe
PID 3016 wrote to memory of 496	3016	mssecsvc.exe	lsass.exe
PID 3016 wrote to memory of 496	3016	mssecsvc.exe	lsass.exe
PID 3016 wrote to memory of 504	3016	mssecsvc.exe	lsm.exe
PID 3016 wrote to memory of 504	3016	mssecsvc.exe	lsm.exe
PID 3016 wrote to memory of 504	3016	mssecsvc.exe	lsm.exe
PID 3016 wrote to memory of 504	3016	mssecsvc.exe	lsm.exe
PID 3016 wrote to memory of 504	3016	mssecsvc.exe	lsm.exe
PID 3016 wrote to memory of 504	3016	mssecsvc.exe	lsm.exe
PID 3016 wrote to memory of 504	3016	mssecsvc.exe	lsm.exe
PID 3016 wrote to memory of 596	3016	mssecsvc.exe	svchost.exe
PID 3016 wrote to memory of 596	3016	mssecsvc.exe	svchost.exe
PID 3016 wrote to memory of 596	3016	mssecsvc.exe	svchost.exe
PID 3016 wrote to memory of 596	3016	mssecsvc.exe	svchost.exe
PID 3016 wrote to memory of 596	3016	mssecsvc.exe	svchost.exe
PID 3016 wrote to memory of 596	3016	mssecsvc.exe	svchost.exe
PID 3016 wrote to memory of 596	3016	mssecsvc.exe	svchost.exe
PID 3016 wrote to memory of 680	3016	mssecsvc.exe	svchost.exe
PID 3016 wrote to memory of 680	3016	mssecsvc.exe	svchost.exe
PID 3016 wrote to memory of 680	3016	mssecsvc.exe	svchost.exe
PID 3016 wrote to memory of 680	3016	mssecsvc.exe	svchost.exe

C:\Windows\system32\wininit.exe
wininit.exe
1⤵
PID:388

C:\Windows\system32\services.exe
C:\Windows\system32\services.exe
2⤵
PID:480

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k DcomLaunch
3⤵
PID:596

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
4⤵
PID:1544

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k RPCSS
3⤵
PID:680

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
3⤵
PID:752

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted
3⤵
PID:820

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
4⤵
PID:1076

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs
3⤵
PID:856

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService
3⤵
PID:968

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k NetworkService
3⤵
PID:276

C:\Windows\System32\spoolsv.exe
C:\Windows\System32\spoolsv.exe
3⤵
PID:1056

C:\Windows\system32\taskhost.exe
"taskhost.exe"
3⤵
PID:1068

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
3⤵
PID:1132

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
3⤵
PID:2268

C:\Windows\system32\sppsvc.exe
C:\Windows\system32\sppsvc.exe
3⤵
PID:2012

C:\WINDOWS\mssecsvc.exe
C:\WINDOWS\mssecsvc.exe -m security
3⤵
- Executes dropped EXE
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:2684

C:\Windows\system32\lsass.exe
C:\Windows\system32\lsass.exe
2⤵
PID:496

C:\Windows\system32\lsm.exe
C:\Windows\system32\lsm.exe
2⤵
PID:504

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:396

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:436

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1172

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\2d4a5c543b416f5456473650bc66d699_JaffaCakes118.dll,#1
2⤵
- Suspicious use of WriteProcessMemory
PID:2168

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\2d4a5c543b416f5456473650bc66d699_JaffaCakes118.dll,#1
3⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2040

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:3016

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

2

T1046

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\mssecsvc.exe
Filesize
3.6MB

MD5
864cfada5752d4ccae3bafdc63bca106

SHA1
451f2540a8f0d8588297cac3500a23d71d48b0d9

SHA256
13df4a29b354bfb2361d14fc2468b866deac6f04383a18254157264098cc3c70

SHA512
862bf33c9b05ec19d4f92d3128902aec648c43a7447e9b7a5c021bcc106d0623ef41bb880298a4119c301e4fabd90828f6a5a6e87fc1dde8ba8b959ae920ab7b

Download Submit
memory/2684-10-0x0000000000400000-0x0000000000A72000-memory.dmp

Filesize
6.4MB

Download
memory/3016-6-0x0000000000400000-0x0000000000A72000-memory.dmp

Filesize
6.4MB

Download
memory/3016-8-0x00000000773DF000-0x00000000773E0000-memory.dmp

Filesize
4KB

Download
memory/3016-7-0x00000000773E0000-0x00000000773E1000-memory.dmp

Filesize
4KB

Download
memory/3016-15-0x000000007EF70000-0x000000007EF7C000-memory.dmp

Filesize
48KB

Download
memory/3016-14-0x00000000773DF000-0x00000000773E0000-memory.dmp

Filesize
4KB

Download
memory/3016-13-0x00000000773E0000-0x00000000773E1000-memory.dmp

Filesize
4KB

Download
memory/3016-16-0x0000000000400000-0x0000000000A72000-memory.dmp

Filesize
6.4MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads