wannacry | fea38ad86326cec84e4ca8da0d4ead6813cc98168e873437f1cf0a24f4560a32

General

Target

9d998584fbf16bf034b7fb71e79d8575_JaffaCakes118.dll
Size

5.0MB
MD5

9d998584fbf16bf034b7fb71e79d8575
SHA1

ebf50f397afce4e7ad5cebce065261ad750c2aba
SHA256

fea38ad86326cec84e4ca8da0d4ead6813cc98168e873437f1cf0a24f4560a32
SHA512

0c58dcf7258bc5bc8a2e8e3a87b7b9cb056759e9953ae99f3932a9b68229bd769725e6352cfaad36f9e23f878a21605ed57092bd93ad4e964a80cc4f128e5134
SSDEEP

49152:AnAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAAZ0vZ6GIkX:ADqPoBhz1aRxcSUDk36SAc0B6GIkX

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (2640) 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

3000 mssecsvc.exe
2840 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
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00d5000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9EB4FAD6-89F5-40FF-B803-F070AB8F50B4}	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9EB4FAD6-89F5-40FF-B803-F070AB8F50B4}\WpadDecisionReason = "1"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9EB4FAD6-89F5-40FF-B803-F070AB8F50B4}\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\ZoneMap\	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9EB4FAD6-89F5-40FF-B803-F070AB8F50B4}\82-28-e3-aa-b2-56	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\82-28-e3-aa-b2-56\WpadDecisionReason = "1"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\82-28-e3-aa-b2-56	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\82-28-e3-aa-b2-56\WpadDecision = "0"	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 = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9EB4FAD6-89F5-40FF-B803-F070AB8F50B4}\WpadDecisionTime = 20181955dfbbda01	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9EB4FAD6-89F5-40FF-B803-F070AB8F50B4}\WpadNetworkName = "Network 3"	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 (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	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 (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\82-28-e3-aa-b2-56\WpadDecisionTime = 20181955dfbbda01	mssecsvc.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

mssecsvc.exemssecsvc.exe

pid process

3000 mssecsvc.exe
2840 mssecsvc.exe

Suspicious behavior: MapViewOfSection 43 IoCs

Processes:

mssecsvc.exemssecsvc.exe

pid	process
3000	mssecsvc.exe
3000	mssecsvc.exe
3000	mssecsvc.exe
3000	mssecsvc.exe
3000	mssecsvc.exe
3000	mssecsvc.exe
3000	mssecsvc.exe
3000	mssecsvc.exe
3000	mssecsvc.exe
3000	mssecsvc.exe
3000	mssecsvc.exe
3000	mssecsvc.exe
3000	mssecsvc.exe
3000	mssecsvc.exe
3000	mssecsvc.exe
3000	mssecsvc.exe
3000	mssecsvc.exe
3000	mssecsvc.exe
3000	mssecsvc.exe
3000	mssecsvc.exe
3000	mssecsvc.exe
2840	mssecsvc.exe
2840	mssecsvc.exe
2840	mssecsvc.exe
2840	mssecsvc.exe
2840	mssecsvc.exe
2840	mssecsvc.exe
2840	mssecsvc.exe
2840	mssecsvc.exe
2840	mssecsvc.exe
2840	mssecsvc.exe
2840	mssecsvc.exe
2840	mssecsvc.exe
2840	mssecsvc.exe
2840	mssecsvc.exe
2840	mssecsvc.exe
2840	mssecsvc.exe
2840	mssecsvc.exe
2840	mssecsvc.exe
2840	mssecsvc.exe
2840	mssecsvc.exe
2840	mssecsvc.exe
2840	mssecsvc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

mssecsvc.exemssecsvc.exe

description pid process

Token: SeDebugPrivilege 3000 mssecsvc.exe
Token: SeDebugPrivilege 2840 mssecsvc.exe

description	pid	process
Token: SeDebugPrivilege	3000	mssecsvc.exe
Token: SeDebugPrivilege	2840	mssecsvc.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

rundll32.exerundll32.exemssecsvc.exe

description	pid	process	target process
PID 2188 wrote to memory of 2268	2188	rundll32.exe	rundll32.exe
PID 2188 wrote to memory of 2268	2188	rundll32.exe	rundll32.exe
PID 2188 wrote to memory of 2268	2188	rundll32.exe	rundll32.exe
PID 2188 wrote to memory of 2268	2188	rundll32.exe	rundll32.exe
PID 2188 wrote to memory of 2268	2188	rundll32.exe	rundll32.exe
PID 2188 wrote to memory of 2268	2188	rundll32.exe	rundll32.exe
PID 2188 wrote to memory of 2268	2188	rundll32.exe	rundll32.exe
PID 2268 wrote to memory of 3000	2268	rundll32.exe	mssecsvc.exe
PID 2268 wrote to memory of 3000	2268	rundll32.exe	mssecsvc.exe
PID 2268 wrote to memory of 3000	2268	rundll32.exe	mssecsvc.exe
PID 2268 wrote to memory of 3000	2268	rundll32.exe	mssecsvc.exe
PID 3000 wrote to memory of 384	3000	mssecsvc.exe	wininit.exe
PID 3000 wrote to memory of 384	3000	mssecsvc.exe	wininit.exe
PID 3000 wrote to memory of 384	3000	mssecsvc.exe	wininit.exe
PID 3000 wrote to memory of 384	3000	mssecsvc.exe	wininit.exe
PID 3000 wrote to memory of 384	3000	mssecsvc.exe	wininit.exe
PID 3000 wrote to memory of 384	3000	mssecsvc.exe	wininit.exe
PID 3000 wrote to memory of 384	3000	mssecsvc.exe	wininit.exe
PID 3000 wrote to memory of 392	3000	mssecsvc.exe	csrss.exe
PID 3000 wrote to memory of 392	3000	mssecsvc.exe	csrss.exe
PID 3000 wrote to memory of 392	3000	mssecsvc.exe	csrss.exe
PID 3000 wrote to memory of 392	3000	mssecsvc.exe	csrss.exe
PID 3000 wrote to memory of 392	3000	mssecsvc.exe	csrss.exe
PID 3000 wrote to memory of 392	3000	mssecsvc.exe	csrss.exe
PID 3000 wrote to memory of 392	3000	mssecsvc.exe	csrss.exe
PID 3000 wrote to memory of 432	3000	mssecsvc.exe	winlogon.exe
PID 3000 wrote to memory of 432	3000	mssecsvc.exe	winlogon.exe
PID 3000 wrote to memory of 432	3000	mssecsvc.exe	winlogon.exe
PID 3000 wrote to memory of 432	3000	mssecsvc.exe	winlogon.exe
PID 3000 wrote to memory of 432	3000	mssecsvc.exe	winlogon.exe
PID 3000 wrote to memory of 432	3000	mssecsvc.exe	winlogon.exe
PID 3000 wrote to memory of 432	3000	mssecsvc.exe	winlogon.exe
PID 3000 wrote to memory of 480	3000	mssecsvc.exe	services.exe
PID 3000 wrote to memory of 480	3000	mssecsvc.exe	services.exe
PID 3000 wrote to memory of 480	3000	mssecsvc.exe	services.exe
PID 3000 wrote to memory of 480	3000	mssecsvc.exe	services.exe
PID 3000 wrote to memory of 480	3000	mssecsvc.exe	services.exe
PID 3000 wrote to memory of 480	3000	mssecsvc.exe	services.exe
PID 3000 wrote to memory of 480	3000	mssecsvc.exe	services.exe
PID 3000 wrote to memory of 488	3000	mssecsvc.exe	lsass.exe
PID 3000 wrote to memory of 488	3000	mssecsvc.exe	lsass.exe
PID 3000 wrote to memory of 488	3000	mssecsvc.exe	lsass.exe
PID 3000 wrote to memory of 488	3000	mssecsvc.exe	lsass.exe
PID 3000 wrote to memory of 488	3000	mssecsvc.exe	lsass.exe
PID 3000 wrote to memory of 488	3000	mssecsvc.exe	lsass.exe
PID 3000 wrote to memory of 488	3000	mssecsvc.exe	lsass.exe
PID 3000 wrote to memory of 496	3000	mssecsvc.exe	lsm.exe
PID 3000 wrote to memory of 496	3000	mssecsvc.exe	lsm.exe
PID 3000 wrote to memory of 496	3000	mssecsvc.exe	lsm.exe
PID 3000 wrote to memory of 496	3000	mssecsvc.exe	lsm.exe
PID 3000 wrote to memory of 496	3000	mssecsvc.exe	lsm.exe
PID 3000 wrote to memory of 496	3000	mssecsvc.exe	lsm.exe
PID 3000 wrote to memory of 496	3000	mssecsvc.exe	lsm.exe
PID 3000 wrote to memory of 588	3000	mssecsvc.exe	svchost.exe
PID 3000 wrote to memory of 588	3000	mssecsvc.exe	svchost.exe
PID 3000 wrote to memory of 588	3000	mssecsvc.exe	svchost.exe
PID 3000 wrote to memory of 588	3000	mssecsvc.exe	svchost.exe
PID 3000 wrote to memory of 588	3000	mssecsvc.exe	svchost.exe
PID 3000 wrote to memory of 588	3000	mssecsvc.exe	svchost.exe
PID 3000 wrote to memory of 588	3000	mssecsvc.exe	svchost.exe
PID 3000 wrote to memory of 672	3000	mssecsvc.exe	svchost.exe
PID 3000 wrote to memory of 672	3000	mssecsvc.exe	svchost.exe
PID 3000 wrote to memory of 672	3000	mssecsvc.exe	svchost.exe
PID 3000 wrote to memory of 672	3000	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:588

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
4⤵
PID:1668

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k RPCSS
3⤵
PID:672

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
3⤵
PID:744

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:1152

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs
3⤵
PID:852

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService
3⤵
PID:960

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k NetworkService
3⤵
PID:1020

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:1056

C:\Windows\system32\taskhost.exe
"taskhost.exe"
3⤵
PID:1084

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
3⤵
PID:2232

C:\Windows\system32\sppsvc.exe
C:\Windows\system32\sppsvc.exe
3⤵
PID:3060

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:2840

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:392

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:432

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1200

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\9d998584fbf16bf034b7fb71e79d8575_JaffaCakes118.dll,#1
2⤵
- Suspicious use of WriteProcessMemory
PID:2188

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\9d998584fbf16bf034b7fb71e79d8575_JaffaCakes118.dll,#1
3⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2268

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:3000

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

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
d22b63f11a475611482500c7d8c154d1

SHA1
0f8ed303ebd32d21743ce1939fe9742d0be8b83e

SHA256
36cf9d46a85700d23e7adf6ed3e3b48502d068c7382934dbc10d77b9c15be609

SHA512
2ecf667f2822f8b40bd319623ae2b84fffabb98d0efba58dff433dfda8ed93eddcf646f94a889a19f3430d65e3f58d96d62421375e3a2d28c9ef69f47b05f0ba

Download Submit
memory/2268-8-0x00000000024E0000-0x0000000002B53000-memory.dmp

Filesize
6.4MB

Download
memory/2268-6-0x00000000024E0000-0x0000000002B53000-memory.dmp

Filesize
6.4MB

Download
memory/2840-12-0x0000000000400000-0x0000000000A73000-memory.dmp

Filesize
6.4MB

Download
memory/2840-20-0x0000000000400000-0x0000000000A73000-memory.dmp

Filesize
6.4MB

Download
memory/3000-7-0x0000000000400000-0x0000000000A73000-memory.dmp

Filesize
6.4MB

Download
memory/3000-9-0x000000007793F000-0x0000000077940000-memory.dmp

Filesize
4KB

Download
memory/3000-13-0x0000000000400000-0x0000000000A73000-memory.dmp

Filesize
6.4MB

Download
memory/3000-15-0x0000000077940000-0x0000000077941000-memory.dmp

Filesize
4KB

Download
memory/3000-14-0x000000007793F000-0x0000000077940000-memory.dmp

Filesize
4KB

Download
memory/3000-19-0x000000007EF80000-0x000000007EF8C000-memory.dmp

Filesize
48KB

Download
memory/3000-18-0x0000000000400000-0x0000000000A73000-memory.dmp

Filesize
6.4MB

Download
memory/3000-10-0x0000000077940000-0x0000000077941000-memory.dmp

Filesize
4KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads