wannacry | 6da34f82d5170e579f967053bc1ecfd27d2777b59ac25807d8dd5148c28748fb

General

Target

58dc734f0486efb9ff6b6b6066e114e0_JaffaCakes118.dll
Size

5.0MB
MD5

58dc734f0486efb9ff6b6b6066e114e0
SHA1

a5e210fd3e2f4e114549a567c71ab5e2a7054286
SHA256

6da34f82d5170e579f967053bc1ecfd27d2777b59ac25807d8dd5148c28748fb
SHA512

c6a238810bc6235a95a01e7ed25e16617b67704ff28bf19a4f9b599b218f3b6c2495c4a43e57f56d6e793a0da07aa54df92abdea25cb1bf14072e1f346e69f8a
SSDEEP

98304:IDqPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2H:IDqPe1Cxcxk3ZAEUadzR8yc4H

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3306) 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

3036 mssecsvc.exe
2604 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 (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1575C79D-C529-4573-8DF3-BB25EFC223B5}\WpadDecision = "0"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\2e-96-84-d1-29-b2\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\Wpad\{1575C79D-C529-4573-8DF3-BB25EFC223B5}\WpadDecisionReason = "1"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	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 (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\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0056000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1575C79D-C529-4573-8DF3-BB25EFC223B5}\WpadNetworkName = "Network 3"	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\ProxyEnable = "0"	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1575C79D-C529-4573-8DF3-BB25EFC223B5}\2e-96-84-d1-29-b2	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	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\{1575C79D-C529-4573-8DF3-BB25EFC223B5}	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1575C79D-C529-4573-8DF3-BB25EFC223B5}\WpadDecisionTime = 508a66ddb0a9da01	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\2e-96-84-d1-29-b2	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 (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\2e-96-84-d1-29-b2\WpadDecisionReason = "1"	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\2e-96-84-d1-29-b2\WpadDecisionTime = 508a66ddb0a9da01	mssecsvc.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

mssecsvc.exemssecsvc.exe

pid process

3036 mssecsvc.exe
2604 mssecsvc.exe

Suspicious behavior: MapViewOfSection 43 IoCs

Processes:

mssecsvc.exemssecsvc.exe

pid	process
3036	mssecsvc.exe
3036	mssecsvc.exe
3036	mssecsvc.exe
3036	mssecsvc.exe
3036	mssecsvc.exe
3036	mssecsvc.exe
3036	mssecsvc.exe
3036	mssecsvc.exe
3036	mssecsvc.exe
3036	mssecsvc.exe
3036	mssecsvc.exe
3036	mssecsvc.exe
3036	mssecsvc.exe
3036	mssecsvc.exe
3036	mssecsvc.exe
3036	mssecsvc.exe
3036	mssecsvc.exe
3036	mssecsvc.exe
3036	mssecsvc.exe
3036	mssecsvc.exe
3036	mssecsvc.exe
2604	mssecsvc.exe
2604	mssecsvc.exe
2604	mssecsvc.exe
2604	mssecsvc.exe
2604	mssecsvc.exe
2604	mssecsvc.exe
2604	mssecsvc.exe
2604	mssecsvc.exe
2604	mssecsvc.exe
2604	mssecsvc.exe
2604	mssecsvc.exe
2604	mssecsvc.exe
2604	mssecsvc.exe
2604	mssecsvc.exe
2604	mssecsvc.exe
2604	mssecsvc.exe
2604	mssecsvc.exe
2604	mssecsvc.exe
2604	mssecsvc.exe
2604	mssecsvc.exe
2604	mssecsvc.exe
2604	mssecsvc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

mssecsvc.exemssecsvc.exe

description pid process

Token: SeDebugPrivilege 3036 mssecsvc.exe
Token: SeDebugPrivilege 2604 mssecsvc.exe

description	pid	process
Token: SeDebugPrivilege	3036	mssecsvc.exe
Token: SeDebugPrivilege	2604	mssecsvc.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

rundll32.exerundll32.exemssecsvc.exe

description	pid	process	target process
PID 3004 wrote to memory of 3024	3004	rundll32.exe	rundll32.exe
PID 3004 wrote to memory of 3024	3004	rundll32.exe	rundll32.exe
PID 3004 wrote to memory of 3024	3004	rundll32.exe	rundll32.exe
PID 3004 wrote to memory of 3024	3004	rundll32.exe	rundll32.exe
PID 3004 wrote to memory of 3024	3004	rundll32.exe	rundll32.exe
PID 3004 wrote to memory of 3024	3004	rundll32.exe	rundll32.exe
PID 3004 wrote to memory of 3024	3004	rundll32.exe	rundll32.exe
PID 3024 wrote to memory of 3036	3024	rundll32.exe	mssecsvc.exe
PID 3024 wrote to memory of 3036	3024	rundll32.exe	mssecsvc.exe
PID 3024 wrote to memory of 3036	3024	rundll32.exe	mssecsvc.exe
PID 3024 wrote to memory of 3036	3024	rundll32.exe	mssecsvc.exe
PID 3036 wrote to memory of 388	3036	mssecsvc.exe	wininit.exe
PID 3036 wrote to memory of 388	3036	mssecsvc.exe	wininit.exe
PID 3036 wrote to memory of 388	3036	mssecsvc.exe	wininit.exe
PID 3036 wrote to memory of 388	3036	mssecsvc.exe	wininit.exe
PID 3036 wrote to memory of 388	3036	mssecsvc.exe	wininit.exe
PID 3036 wrote to memory of 388	3036	mssecsvc.exe	wininit.exe
PID 3036 wrote to memory of 388	3036	mssecsvc.exe	wininit.exe
PID 3036 wrote to memory of 400	3036	mssecsvc.exe	csrss.exe
PID 3036 wrote to memory of 400	3036	mssecsvc.exe	csrss.exe
PID 3036 wrote to memory of 400	3036	mssecsvc.exe	csrss.exe
PID 3036 wrote to memory of 400	3036	mssecsvc.exe	csrss.exe
PID 3036 wrote to memory of 400	3036	mssecsvc.exe	csrss.exe
PID 3036 wrote to memory of 400	3036	mssecsvc.exe	csrss.exe
PID 3036 wrote to memory of 400	3036	mssecsvc.exe	csrss.exe
PID 3036 wrote to memory of 436	3036	mssecsvc.exe	winlogon.exe
PID 3036 wrote to memory of 436	3036	mssecsvc.exe	winlogon.exe
PID 3036 wrote to memory of 436	3036	mssecsvc.exe	winlogon.exe
PID 3036 wrote to memory of 436	3036	mssecsvc.exe	winlogon.exe
PID 3036 wrote to memory of 436	3036	mssecsvc.exe	winlogon.exe
PID 3036 wrote to memory of 436	3036	mssecsvc.exe	winlogon.exe
PID 3036 wrote to memory of 436	3036	mssecsvc.exe	winlogon.exe
PID 3036 wrote to memory of 480	3036	mssecsvc.exe	services.exe
PID 3036 wrote to memory of 480	3036	mssecsvc.exe	services.exe
PID 3036 wrote to memory of 480	3036	mssecsvc.exe	services.exe
PID 3036 wrote to memory of 480	3036	mssecsvc.exe	services.exe
PID 3036 wrote to memory of 480	3036	mssecsvc.exe	services.exe
PID 3036 wrote to memory of 480	3036	mssecsvc.exe	services.exe
PID 3036 wrote to memory of 480	3036	mssecsvc.exe	services.exe
PID 3036 wrote to memory of 496	3036	mssecsvc.exe	lsass.exe
PID 3036 wrote to memory of 496	3036	mssecsvc.exe	lsass.exe
PID 3036 wrote to memory of 496	3036	mssecsvc.exe	lsass.exe
PID 3036 wrote to memory of 496	3036	mssecsvc.exe	lsass.exe
PID 3036 wrote to memory of 496	3036	mssecsvc.exe	lsass.exe
PID 3036 wrote to memory of 496	3036	mssecsvc.exe	lsass.exe
PID 3036 wrote to memory of 496	3036	mssecsvc.exe	lsass.exe
PID 3036 wrote to memory of 504	3036	mssecsvc.exe	lsm.exe
PID 3036 wrote to memory of 504	3036	mssecsvc.exe	lsm.exe
PID 3036 wrote to memory of 504	3036	mssecsvc.exe	lsm.exe
PID 3036 wrote to memory of 504	3036	mssecsvc.exe	lsm.exe
PID 3036 wrote to memory of 504	3036	mssecsvc.exe	lsm.exe
PID 3036 wrote to memory of 504	3036	mssecsvc.exe	lsm.exe
PID 3036 wrote to memory of 504	3036	mssecsvc.exe	lsm.exe
PID 3036 wrote to memory of 616	3036	mssecsvc.exe	svchost.exe
PID 3036 wrote to memory of 616	3036	mssecsvc.exe	svchost.exe
PID 3036 wrote to memory of 616	3036	mssecsvc.exe	svchost.exe
PID 3036 wrote to memory of 616	3036	mssecsvc.exe	svchost.exe
PID 3036 wrote to memory of 616	3036	mssecsvc.exe	svchost.exe
PID 3036 wrote to memory of 616	3036	mssecsvc.exe	svchost.exe
PID 3036 wrote to memory of 616	3036	mssecsvc.exe	svchost.exe
PID 3036 wrote to memory of 696	3036	mssecsvc.exe	svchost.exe
PID 3036 wrote to memory of 696	3036	mssecsvc.exe	svchost.exe
PID 3036 wrote to memory of 696	3036	mssecsvc.exe	svchost.exe
PID 3036 wrote to memory of 696	3036	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:616

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
4⤵
PID:1900

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k RPCSS
3⤵
PID:696

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
3⤵
PID:772

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted
3⤵
PID:840

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
4⤵
PID:1200

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs
3⤵
PID:876

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService
3⤵
PID:992

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k NetworkService
3⤵
PID:296

C:\Windows\System32\spoolsv.exe
C:\Windows\System32\spoolsv.exe
3⤵
PID:1028

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
3⤵
PID:1088

C:\Windows\system32\taskhost.exe
"taskhost.exe"
3⤵
PID:1136

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
3⤵
PID:2984

C:\Windows\system32\sppsvc.exe
C:\Windows\system32\sppsvc.exe
3⤵
PID:2948

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:2604

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:400

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

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1248

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\58dc734f0486efb9ff6b6b6066e114e0_JaffaCakes118.dll,#1
2⤵
- Suspicious use of WriteProcessMemory
PID:3004

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\58dc734f0486efb9ff6b6b6066e114e0_JaffaCakes118.dll,#1
3⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:3024

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:3036

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
2fbf26ed3af5c021d1699169e90b05c6

SHA1
9c21ce1392139e15be4aa526ac62a2bef07154ca

SHA256
b976c3866b0bd6a49e90f5e7bde19dce37de70b9d7ff30af70c1edc5c4f9cab2

SHA512
043886ae20bd234d7b3da3b1561f07cf4ea3de2715be565416a67bb0d3e3a8c772e9d0671f08a62fece8fab5c1de250795b8e8ef0d52ed7c2ac6e9b80666cb70

Download Submit
memory/2604-10-0x0000000000400000-0x0000000000A72000-memory.dmp

Filesize
6.4MB

Download
memory/2604-18-0x0000000000400000-0x0000000000A72000-memory.dmp

Filesize
6.4MB

Download
memory/3036-6-0x0000000000400000-0x0000000000A72000-memory.dmp

Filesize
6.4MB

Download
memory/3036-8-0x000000007715F000-0x0000000077160000-memory.dmp

Filesize
4KB

Download
memory/3036-7-0x0000000077160000-0x0000000077161000-memory.dmp

Filesize
4KB

Download
memory/3036-13-0x000000007EF70000-0x000000007EF7C000-memory.dmp

Filesize
48KB

Download
memory/3036-12-0x000000007715F000-0x0000000077160000-memory.dmp

Filesize
4KB

Download
memory/3036-11-0x0000000077160000-0x0000000077161000-memory.dmp

Filesize
4KB

Download
memory/3036-17-0x000000007EF70000-0x000000007EF7C000-memory.dmp

Filesize
48KB

Download
memory/3036-16-0x0000000000400000-0x0000000000A72000-memory.dmp

Filesize
6.4MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads