wannacry | 8af0930d043642283db87908a19b32db4a79b662789dc4a18cc64033b40e28b0

General

Target

4df36fc85e781b72cb479f2559cc6704_JaffaCakes118.dll
Size

5.0MB
MD5

4df36fc85e781b72cb479f2559cc6704
SHA1

eb34a21c9ebedaf7f5e3d5eb5b89a80774eac945
SHA256

8af0930d043642283db87908a19b32db4a79b662789dc4a18cc64033b40e28b0
SHA512

ccab58e9e02b63b4f6788b1a0aab002091936a1a4116d658ccb807257d16db11caabe0c736b22aebd2653d7b84a1b4343e13630e24faca4c581604dc56812a70
SSDEEP

24576:QbLgddQhfdmMSirYbcMNgef0QeQjG/D8kIqRYoAdNLKz6626Wo/GsnjQ:QnAQqMSPbcBVQej/1INRAW+GsjQ

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3160) 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
2572 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:

mssecsvc.exerundll32.exe

description ioc process

File created C:\WINDOWS\tasksche.exe mssecsvc.exe
File created C:\WINDOWS\mssecsvc.exe rundll32.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	mssecsvc.exe
File created	C:\WINDOWS\mssecsvc.exe	rundll32.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 = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00d5000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	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 (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\82-28-e3-aa-b2-56\WpadDecisionTime = 90943411fda7da01	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\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	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\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\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 (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9EB4FAD6-89F5-40FF-B803-F070AB8F50B4}\WpadDecisionTime = 90943411fda7da01	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\82-28-e3-aa-b2-56	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
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\{9EB4FAD6-89F5-40FF-B803-F070AB8F50B4}	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
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 (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	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\Cookies\CachePrefix = "Cookie:"	mssecsvc.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

mssecsvc.exemssecsvc.exe

pid process

3000 mssecsvc.exe
2572 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
2572	mssecsvc.exe
2572	mssecsvc.exe
2572	mssecsvc.exe
2572	mssecsvc.exe
2572	mssecsvc.exe
2572	mssecsvc.exe
2572	mssecsvc.exe
2572	mssecsvc.exe
2572	mssecsvc.exe
2572	mssecsvc.exe
2572	mssecsvc.exe
2572	mssecsvc.exe
2572	mssecsvc.exe
2572	mssecsvc.exe
2572	mssecsvc.exe
2572	mssecsvc.exe
2572	mssecsvc.exe
2572	mssecsvc.exe
2572	mssecsvc.exe
2572	mssecsvc.exe
2572	mssecsvc.exe
2572	mssecsvc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

mssecsvc.exemssecsvc.exe

description pid process

Token: SeDebugPrivilege 3000 mssecsvc.exe
Token: SeDebugPrivilege 2572 mssecsvc.exe

description	pid	process
Token: SeDebugPrivilege	3000	mssecsvc.exe
Token: SeDebugPrivilege	2572	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:2572

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\4df36fc85e781b72cb479f2559cc6704_JaffaCakes118.dll,#1
2⤵
- Suspicious use of WriteProcessMemory
PID:2188

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\4df36fc85e781b72cb479f2559cc6704_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 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
f927d5a11431ab431f6f04ee4be9473d

SHA1
b8298f57071f78254a17956a65438cc4eda9ba59

SHA256
a66536798eec4a36e7a9cf621902010bb5836f841f59f57fcb508466bd017270

SHA512
bfd8d28a165736a58d5ed392a69851f39ec80300ffd28112e12436d1d4cbe9faa4e87ed2864c39febd29b3702aa82f505eb7a5192984e35eb4c094553a5917ef

Download Submit
memory/2572-10-0x0000000000400000-0x0000000000A72000-memory.dmp

Filesize
6.4MB

Download
memory/2572-18-0x0000000000400000-0x0000000000A72000-memory.dmp

Filesize
6.4MB

Download
memory/3000-6-0x0000000000400000-0x0000000000A72000-memory.dmp

Filesize
6.4MB

Download
memory/3000-8-0x0000000077940000-0x0000000077941000-memory.dmp

Filesize
4KB

Download
memory/3000-7-0x000000007793F000-0x0000000077940000-memory.dmp

Filesize
4KB

Download
memory/3000-13-0x000000007EF70000-0x000000007EF7C000-memory.dmp

Filesize
48KB

Download
memory/3000-12-0x000000007793F000-0x0000000077940000-memory.dmp

Filesize
4KB

Download
memory/3000-11-0x0000000077940000-0x0000000077941000-memory.dmp

Filesize
4KB

Download
memory/3000-17-0x000000007EF70000-0x000000007EF7C000-memory.dmp

Filesize
48KB

Download
memory/3000-16-0x0000000000400000-0x0000000000A72000-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