wannacry | 7d3f339f10b2793ee3fcc538bafbe35e390978e4295934c59518c62fbfdc98dc

General

Target

70078801629398df6c0d6f6bbb70d759_JaffaCakes118.dll
Size

5.0MB
MD5

70078801629398df6c0d6f6bbb70d759
SHA1

8e5dacbc381f663573592eadab6d8af4019a6eb7
SHA256

7d3f339f10b2793ee3fcc538bafbe35e390978e4295934c59518c62fbfdc98dc
SHA512

46ee5721b51a297deb5db84b1dab664ac2ef4ad56d60216fe49101aaa931fb2f6bcac9760c2a2133b7c83ae0903dbb7f5fa8b707b04c01b8c0e55d8e039a5c64
SSDEEP

49152:tnAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAA:hDqPoBhz1aRxcSUDk36SA

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3122) 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

1932 mssecsvc.exe
2620 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
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f001d000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\de-05-41-4f-bb-79	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{096A9560-D67D-4C4B-8924-59A9EC36357B}\de-05-41-4f-bb-79	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\de-05-41-4f-bb-79\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\ZoneMap\	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{096A9560-D67D-4C4B-8924-59A9EC36357B}\WpadDecision = "0"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\de-05-41-4f-bb-79\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\ZoneMap\UNCAsIntranet = "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\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 (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\de-05-41-4f-bb-79\WpadDecisionTime = f01d198c2baeda01	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	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
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{096A9560-D67D-4C4B-8924-59A9EC36357B}	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{096A9560-D67D-4C4B-8924-59A9EC36357B}\WpadDecisionReason = "1"	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{096A9560-D67D-4C4B-8924-59A9EC36357B}\WpadDecisionTime = f01d198c2baeda01	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{096A9560-D67D-4C4B-8924-59A9EC36357B}\WpadNetworkName = "Network 2"	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

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

mssecsvc.exemssecsvc.exe

pid process

1932 mssecsvc.exe
2620 mssecsvc.exe

Suspicious behavior: MapViewOfSection 43 IoCs

Processes:

mssecsvc.exemssecsvc.exe

pid	process
1932	mssecsvc.exe
1932	mssecsvc.exe
1932	mssecsvc.exe
1932	mssecsvc.exe
1932	mssecsvc.exe
1932	mssecsvc.exe
1932	mssecsvc.exe
1932	mssecsvc.exe
1932	mssecsvc.exe
1932	mssecsvc.exe
1932	mssecsvc.exe
1932	mssecsvc.exe
1932	mssecsvc.exe
1932	mssecsvc.exe
1932	mssecsvc.exe
1932	mssecsvc.exe
1932	mssecsvc.exe
1932	mssecsvc.exe
1932	mssecsvc.exe
1932	mssecsvc.exe
1932	mssecsvc.exe
2620	mssecsvc.exe
2620	mssecsvc.exe
2620	mssecsvc.exe
2620	mssecsvc.exe
2620	mssecsvc.exe
2620	mssecsvc.exe
2620	mssecsvc.exe
2620	mssecsvc.exe
2620	mssecsvc.exe
2620	mssecsvc.exe
2620	mssecsvc.exe
2620	mssecsvc.exe
2620	mssecsvc.exe
2620	mssecsvc.exe
2620	mssecsvc.exe
2620	mssecsvc.exe
2620	mssecsvc.exe
2620	mssecsvc.exe
2620	mssecsvc.exe
2620	mssecsvc.exe
2620	mssecsvc.exe
2620	mssecsvc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

mssecsvc.exemssecsvc.exe

description pid process

Token: SeDebugPrivilege 1932 mssecsvc.exe
Token: SeDebugPrivilege 2620 mssecsvc.exe

description	pid	process
Token: SeDebugPrivilege	1932	mssecsvc.exe
Token: SeDebugPrivilege	2620	mssecsvc.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

rundll32.exerundll32.exemssecsvc.exe

description	pid	process	target process
PID 2116 wrote to memory of 2228	2116	rundll32.exe	rundll32.exe
PID 2116 wrote to memory of 2228	2116	rundll32.exe	rundll32.exe
PID 2116 wrote to memory of 2228	2116	rundll32.exe	rundll32.exe
PID 2116 wrote to memory of 2228	2116	rundll32.exe	rundll32.exe
PID 2116 wrote to memory of 2228	2116	rundll32.exe	rundll32.exe
PID 2116 wrote to memory of 2228	2116	rundll32.exe	rundll32.exe
PID 2116 wrote to memory of 2228	2116	rundll32.exe	rundll32.exe
PID 2228 wrote to memory of 1932	2228	rundll32.exe	mssecsvc.exe
PID 2228 wrote to memory of 1932	2228	rundll32.exe	mssecsvc.exe
PID 2228 wrote to memory of 1932	2228	rundll32.exe	mssecsvc.exe
PID 2228 wrote to memory of 1932	2228	rundll32.exe	mssecsvc.exe
PID 1932 wrote to memory of 380	1932	mssecsvc.exe	wininit.exe
PID 1932 wrote to memory of 380	1932	mssecsvc.exe	wininit.exe
PID 1932 wrote to memory of 380	1932	mssecsvc.exe	wininit.exe
PID 1932 wrote to memory of 380	1932	mssecsvc.exe	wininit.exe
PID 1932 wrote to memory of 380	1932	mssecsvc.exe	wininit.exe
PID 1932 wrote to memory of 380	1932	mssecsvc.exe	wininit.exe
PID 1932 wrote to memory of 380	1932	mssecsvc.exe	wininit.exe
PID 1932 wrote to memory of 388	1932	mssecsvc.exe	csrss.exe
PID 1932 wrote to memory of 388	1932	mssecsvc.exe	csrss.exe
PID 1932 wrote to memory of 388	1932	mssecsvc.exe	csrss.exe
PID 1932 wrote to memory of 388	1932	mssecsvc.exe	csrss.exe
PID 1932 wrote to memory of 388	1932	mssecsvc.exe	csrss.exe
PID 1932 wrote to memory of 388	1932	mssecsvc.exe	csrss.exe
PID 1932 wrote to memory of 388	1932	mssecsvc.exe	csrss.exe
PID 1932 wrote to memory of 428	1932	mssecsvc.exe	winlogon.exe
PID 1932 wrote to memory of 428	1932	mssecsvc.exe	winlogon.exe
PID 1932 wrote to memory of 428	1932	mssecsvc.exe	winlogon.exe
PID 1932 wrote to memory of 428	1932	mssecsvc.exe	winlogon.exe
PID 1932 wrote to memory of 428	1932	mssecsvc.exe	winlogon.exe
PID 1932 wrote to memory of 428	1932	mssecsvc.exe	winlogon.exe
PID 1932 wrote to memory of 428	1932	mssecsvc.exe	winlogon.exe
PID 1932 wrote to memory of 472	1932	mssecsvc.exe	services.exe
PID 1932 wrote to memory of 472	1932	mssecsvc.exe	services.exe
PID 1932 wrote to memory of 472	1932	mssecsvc.exe	services.exe
PID 1932 wrote to memory of 472	1932	mssecsvc.exe	services.exe
PID 1932 wrote to memory of 472	1932	mssecsvc.exe	services.exe
PID 1932 wrote to memory of 472	1932	mssecsvc.exe	services.exe
PID 1932 wrote to memory of 472	1932	mssecsvc.exe	services.exe
PID 1932 wrote to memory of 488	1932	mssecsvc.exe	lsass.exe
PID 1932 wrote to memory of 488	1932	mssecsvc.exe	lsass.exe
PID 1932 wrote to memory of 488	1932	mssecsvc.exe	lsass.exe
PID 1932 wrote to memory of 488	1932	mssecsvc.exe	lsass.exe
PID 1932 wrote to memory of 488	1932	mssecsvc.exe	lsass.exe
PID 1932 wrote to memory of 488	1932	mssecsvc.exe	lsass.exe
PID 1932 wrote to memory of 488	1932	mssecsvc.exe	lsass.exe
PID 1932 wrote to memory of 496	1932	mssecsvc.exe	lsm.exe
PID 1932 wrote to memory of 496	1932	mssecsvc.exe	lsm.exe
PID 1932 wrote to memory of 496	1932	mssecsvc.exe	lsm.exe
PID 1932 wrote to memory of 496	1932	mssecsvc.exe	lsm.exe
PID 1932 wrote to memory of 496	1932	mssecsvc.exe	lsm.exe
PID 1932 wrote to memory of 496	1932	mssecsvc.exe	lsm.exe
PID 1932 wrote to memory of 496	1932	mssecsvc.exe	lsm.exe
PID 1932 wrote to memory of 596	1932	mssecsvc.exe	svchost.exe
PID 1932 wrote to memory of 596	1932	mssecsvc.exe	svchost.exe
PID 1932 wrote to memory of 596	1932	mssecsvc.exe	svchost.exe
PID 1932 wrote to memory of 596	1932	mssecsvc.exe	svchost.exe
PID 1932 wrote to memory of 596	1932	mssecsvc.exe	svchost.exe
PID 1932 wrote to memory of 596	1932	mssecsvc.exe	svchost.exe
PID 1932 wrote to memory of 596	1932	mssecsvc.exe	svchost.exe
PID 1932 wrote to memory of 676	1932	mssecsvc.exe	svchost.exe
PID 1932 wrote to memory of 676	1932	mssecsvc.exe	svchost.exe
PID 1932 wrote to memory of 676	1932	mssecsvc.exe	svchost.exe
PID 1932 wrote to memory of 676	1932	mssecsvc.exe	svchost.exe

C:\Windows\system32\wininit.exe
wininit.exe
1⤵
PID:380

C:\Windows\system32\services.exe
C:\Windows\system32\services.exe
2⤵
PID:472

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:1032

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:740

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted
3⤵
PID:808

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
4⤵
PID:1148

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs
3⤵
PID:844

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:236

C:\Windows\System32\spoolsv.exe
C:\Windows\System32\spoolsv.exe
3⤵
PID:1012

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
3⤵
PID:1040

C:\Windows\system32\taskhost.exe
"taskhost.exe"
3⤵
PID:1100

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
3⤵
PID:2088

C:\Windows\system32\sppsvc.exe
C:\Windows\system32\sppsvc.exe
3⤵
PID:1276

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:2620

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

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

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:388

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:428

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1180

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\70078801629398df6c0d6f6bbb70d759_JaffaCakes118.dll,#1
2⤵
- Suspicious use of WriteProcessMemory
PID:2116

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\70078801629398df6c0d6f6bbb70d759_JaffaCakes118.dll,#1
3⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2228

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:1932

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

2

T1046

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Windows\mssecsvc.exe
Filesize
3.6MB

MD5
9b87de0bdd3875ff27c7eeba1e126179

SHA1
ae4a21aeb21d411c56b683c7f436fc071d51e902

SHA256
86101a5d9b6f0b841245102a3f9e976469931ed7d40cdf9373f94e1ae56fee88

SHA512
99a41c283b493200423fb8d2e56b753c5f3a9902f26b23fefa720bc8164b612706c37c36a1361d82bc10b5c4429ef8752f5981a8149acd78086e883e63ddf564

Download Submit
memory/1932-6-0x0000000000400000-0x0000000000A72000-memory.dmp

Filesize
6.4MB

Download
memory/1932-8-0x0000000077AE0000-0x0000000077AE1000-memory.dmp

Filesize
4KB

Download
memory/1932-7-0x0000000077ADF000-0x0000000077AE0000-memory.dmp

Filesize
4KB

Download
memory/1932-13-0x000000007EF70000-0x000000007EF7C000-memory.dmp

Filesize
48KB

Download
memory/1932-12-0x0000000077ADF000-0x0000000077AE0000-memory.dmp

Filesize
4KB

Download
memory/1932-11-0x0000000077AE0000-0x0000000077AE1000-memory.dmp

Filesize
4KB

Download
memory/1932-17-0x000000007EF70000-0x000000007EF7C000-memory.dmp

Filesize
48KB

Download
memory/1932-16-0x0000000000400000-0x0000000000A72000-memory.dmp

Filesize
6.4MB

Download
memory/2620-10-0x0000000000400000-0x0000000000A72000-memory.dmp

Filesize
6.4MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads