wannacry | 412d4635deca5e3f92f67f9e870d37c6ba3425f4dc5234b08d2abf84d2267f25

General

Target

a119f909f723d75e958d1a8b4b7c7772_JaffaCakes118.dll
Size

5.0MB
MD5

a119f909f723d75e958d1a8b4b7c7772
SHA1

b9fa1802da17688666df58a5ac6b38e49603c19c
SHA256

412d4635deca5e3f92f67f9e870d37c6ba3425f4dc5234b08d2abf84d2267f25
SHA512

71fdb25be9ad09ce09ebdce9f1ba9920083f69aaf7f6001d1384d2f8ff4bd6126fefcccf9aa2c5200b4d43c6e14dc1828e2be00d49a1e09bdb6fde5b8785276a
SSDEEP

49152:lnAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM:pDqPoBhz1aRxcSUDk36SAEdhvxW

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3231) 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

2284 mssecsvc.exe
2592 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
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\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0107000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{39FFD7B2-9DA2-4408-9725-386077F80865}\WpadNetworkName = "Network 3"	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\12-e8-0c-d8-7f-16	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\12-e8-0c-d8-7f-16\WpadDecisionReason = "1"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\12-e8-0c-d8-7f-16\WpadDecision = "0"	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	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\{39FFD7B2-9DA2-4408-9725-386077F80865}\WpadDecisionReason = "1"	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{39FFD7B2-9DA2-4408-9725-386077F80865}\WpadDecisionTime = d0a51781dabcda01	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{39FFD7B2-9DA2-4408-9725-386077F80865}\12-e8-0c-d8-7f-16	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\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 (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\{39FFD7B2-9DA2-4408-9725-386077F80865}	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\12-e8-0c-d8-7f-16\WpadDecisionTime = d0a51781dabcda01	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
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\{39FFD7B2-9DA2-4408-9725-386077F80865}\WpadDecision = "0"	mssecsvc.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

mssecsvc.exemssecsvc.exe

pid process

2284 mssecsvc.exe
2592 mssecsvc.exe

Suspicious behavior: MapViewOfSection 43 IoCs

Processes:

mssecsvc.exemssecsvc.exe

pid	process
2284	mssecsvc.exe
2284	mssecsvc.exe
2284	mssecsvc.exe
2284	mssecsvc.exe
2284	mssecsvc.exe
2284	mssecsvc.exe
2284	mssecsvc.exe
2284	mssecsvc.exe
2284	mssecsvc.exe
2284	mssecsvc.exe
2284	mssecsvc.exe
2284	mssecsvc.exe
2284	mssecsvc.exe
2284	mssecsvc.exe
2284	mssecsvc.exe
2284	mssecsvc.exe
2284	mssecsvc.exe
2284	mssecsvc.exe
2284	mssecsvc.exe
2284	mssecsvc.exe
2284	mssecsvc.exe
2592	mssecsvc.exe
2592	mssecsvc.exe
2592	mssecsvc.exe
2592	mssecsvc.exe
2592	mssecsvc.exe
2592	mssecsvc.exe
2592	mssecsvc.exe
2592	mssecsvc.exe
2592	mssecsvc.exe
2592	mssecsvc.exe
2592	mssecsvc.exe
2592	mssecsvc.exe
2592	mssecsvc.exe
2592	mssecsvc.exe
2592	mssecsvc.exe
2592	mssecsvc.exe
2592	mssecsvc.exe
2592	mssecsvc.exe
2592	mssecsvc.exe
2592	mssecsvc.exe
2592	mssecsvc.exe
2592	mssecsvc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

mssecsvc.exemssecsvc.exe

description pid process

Token: SeDebugPrivilege 2284 mssecsvc.exe
Token: SeDebugPrivilege 2592 mssecsvc.exe

description	pid	process
Token: SeDebugPrivilege	2284	mssecsvc.exe
Token: SeDebugPrivilege	2592	mssecsvc.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

rundll32.exerundll32.exemssecsvc.exe

description	pid	process	target process
PID 2868 wrote to memory of 2984	2868	rundll32.exe	rundll32.exe
PID 2868 wrote to memory of 2984	2868	rundll32.exe	rundll32.exe
PID 2868 wrote to memory of 2984	2868	rundll32.exe	rundll32.exe
PID 2868 wrote to memory of 2984	2868	rundll32.exe	rundll32.exe
PID 2868 wrote to memory of 2984	2868	rundll32.exe	rundll32.exe
PID 2868 wrote to memory of 2984	2868	rundll32.exe	rundll32.exe
PID 2868 wrote to memory of 2984	2868	rundll32.exe	rundll32.exe
PID 2984 wrote to memory of 2284	2984	rundll32.exe	mssecsvc.exe
PID 2984 wrote to memory of 2284	2984	rundll32.exe	mssecsvc.exe
PID 2984 wrote to memory of 2284	2984	rundll32.exe	mssecsvc.exe
PID 2984 wrote to memory of 2284	2984	rundll32.exe	mssecsvc.exe
PID 2284 wrote to memory of 384	2284	mssecsvc.exe	wininit.exe
PID 2284 wrote to memory of 384	2284	mssecsvc.exe	wininit.exe
PID 2284 wrote to memory of 384	2284	mssecsvc.exe	wininit.exe
PID 2284 wrote to memory of 384	2284	mssecsvc.exe	wininit.exe
PID 2284 wrote to memory of 384	2284	mssecsvc.exe	wininit.exe
PID 2284 wrote to memory of 384	2284	mssecsvc.exe	wininit.exe
PID 2284 wrote to memory of 384	2284	mssecsvc.exe	wininit.exe
PID 2284 wrote to memory of 396	2284	mssecsvc.exe	csrss.exe
PID 2284 wrote to memory of 396	2284	mssecsvc.exe	csrss.exe
PID 2284 wrote to memory of 396	2284	mssecsvc.exe	csrss.exe
PID 2284 wrote to memory of 396	2284	mssecsvc.exe	csrss.exe
PID 2284 wrote to memory of 396	2284	mssecsvc.exe	csrss.exe
PID 2284 wrote to memory of 396	2284	mssecsvc.exe	csrss.exe
PID 2284 wrote to memory of 396	2284	mssecsvc.exe	csrss.exe
PID 2284 wrote to memory of 436	2284	mssecsvc.exe	winlogon.exe
PID 2284 wrote to memory of 436	2284	mssecsvc.exe	winlogon.exe
PID 2284 wrote to memory of 436	2284	mssecsvc.exe	winlogon.exe
PID 2284 wrote to memory of 436	2284	mssecsvc.exe	winlogon.exe
PID 2284 wrote to memory of 436	2284	mssecsvc.exe	winlogon.exe
PID 2284 wrote to memory of 436	2284	mssecsvc.exe	winlogon.exe
PID 2284 wrote to memory of 436	2284	mssecsvc.exe	winlogon.exe
PID 2284 wrote to memory of 480	2284	mssecsvc.exe	services.exe
PID 2284 wrote to memory of 480	2284	mssecsvc.exe	services.exe
PID 2284 wrote to memory of 480	2284	mssecsvc.exe	services.exe
PID 2284 wrote to memory of 480	2284	mssecsvc.exe	services.exe
PID 2284 wrote to memory of 480	2284	mssecsvc.exe	services.exe
PID 2284 wrote to memory of 480	2284	mssecsvc.exe	services.exe
PID 2284 wrote to memory of 480	2284	mssecsvc.exe	services.exe
PID 2284 wrote to memory of 496	2284	mssecsvc.exe	lsass.exe
PID 2284 wrote to memory of 496	2284	mssecsvc.exe	lsass.exe
PID 2284 wrote to memory of 496	2284	mssecsvc.exe	lsass.exe
PID 2284 wrote to memory of 496	2284	mssecsvc.exe	lsass.exe
PID 2284 wrote to memory of 496	2284	mssecsvc.exe	lsass.exe
PID 2284 wrote to memory of 496	2284	mssecsvc.exe	lsass.exe
PID 2284 wrote to memory of 496	2284	mssecsvc.exe	lsass.exe
PID 2284 wrote to memory of 504	2284	mssecsvc.exe	lsm.exe
PID 2284 wrote to memory of 504	2284	mssecsvc.exe	lsm.exe
PID 2284 wrote to memory of 504	2284	mssecsvc.exe	lsm.exe
PID 2284 wrote to memory of 504	2284	mssecsvc.exe	lsm.exe
PID 2284 wrote to memory of 504	2284	mssecsvc.exe	lsm.exe
PID 2284 wrote to memory of 504	2284	mssecsvc.exe	lsm.exe
PID 2284 wrote to memory of 504	2284	mssecsvc.exe	lsm.exe
PID 2284 wrote to memory of 596	2284	mssecsvc.exe	svchost.exe
PID 2284 wrote to memory of 596	2284	mssecsvc.exe	svchost.exe
PID 2284 wrote to memory of 596	2284	mssecsvc.exe	svchost.exe
PID 2284 wrote to memory of 596	2284	mssecsvc.exe	svchost.exe
PID 2284 wrote to memory of 596	2284	mssecsvc.exe	svchost.exe
PID 2284 wrote to memory of 596	2284	mssecsvc.exe	svchost.exe
PID 2284 wrote to memory of 596	2284	mssecsvc.exe	svchost.exe
PID 2284 wrote to memory of 676	2284	mssecsvc.exe	svchost.exe
PID 2284 wrote to memory of 676	2284	mssecsvc.exe	svchost.exe
PID 2284 wrote to memory of 676	2284	mssecsvc.exe	svchost.exe
PID 2284 wrote to memory of 676	2284	mssecsvc.exe	svchost.exe

C:\Windows\system32\wininit.exe
wininit.exe
1⤵
PID:384

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:340

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k RPCSS
3⤵
PID:676

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
3⤵
PID:764

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted
3⤵
PID:812

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
4⤵
PID:1120

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs
3⤵
PID:860

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService
3⤵
PID:964

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k NetworkService
3⤵
PID:284

C:\Windows\System32\spoolsv.exe
C:\Windows\System32\spoolsv.exe
3⤵
PID:352

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

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
3⤵
PID:1140

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
3⤵
PID:3036

C:\Windows\system32\sppsvc.exe
C:\Windows\system32\sppsvc.exe
3⤵
PID:2096

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:2592

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:1180

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a119f909f723d75e958d1a8b4b7c7772_JaffaCakes118.dll,#1
2⤵
- Suspicious use of WriteProcessMemory
PID:2868

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a119f909f723d75e958d1a8b4b7c7772_JaffaCakes118.dll,#1
3⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2984

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:2284

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
43f0ce1ccbaa0e7afeea08ab49b2e930

SHA1
21e0b779cc7f6f2836d7347e7ec48d63be15ecba

SHA256
bc9518b04513010de1c13e8956b737cb0aa3e4ce5c6d6da637c18ea0257336d7

SHA512
27bde3b24d4898ad7910db8120fdfb4018dfef5587f876f876a5c91e844f25458680741d2a5f8b749bbe95ef0a59b3141fc91c0ad499b0d33e673c1ff257267d

Download Submit
memory/2284-7-0x0000000077690000-0x0000000077691000-memory.dmp

Filesize
4KB

Download
memory/2284-9-0x000000007768F000-0x0000000077690000-memory.dmp

Filesize
4KB

Download
memory/2284-8-0x0000000000400000-0x0000000000A73000-memory.dmp

Filesize
6.4MB

Download
memory/2284-17-0x0000000000400000-0x0000000000A73000-memory.dmp

Filesize
6.4MB

Download
memory/2284-16-0x000000007EF70000-0x000000007EF7C000-memory.dmp

Filesize
48KB

Download
memory/2284-15-0x000000007768F000-0x0000000077690000-memory.dmp

Filesize
4KB

Download
memory/2284-14-0x0000000077690000-0x0000000077691000-memory.dmp

Filesize
4KB

Download
memory/2592-11-0x0000000000400000-0x0000000000A73000-memory.dmp

Filesize
6.4MB

Download
memory/2984-6-0x0000000002130000-0x00000000027A3000-memory.dmp

Filesize
6.4MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads