wannacry | 4acc32f5b088b82bd0b849e40e22c99825a57b0d03cc2f1a6655d633c03f542f

General

Target

6e344b6b1c9fd13c81b90ef87f7891b4_JaffaCakes118.dll
Size

5.0MB
MD5

6e344b6b1c9fd13c81b90ef87f7891b4
SHA1

983bcf211b0a506cf31203694d54416c52b2f1aa
SHA256

4acc32f5b088b82bd0b849e40e22c99825a57b0d03cc2f1a6655d633c03f542f
SHA512

326a5d9040fa7a6a43abde242edb97e5552003e30d0d5186c7bd6fcb2375245d226e7da92dfaceddcaa5fb9cf7cd2d7fa8f835887543b56931d4cf437bf3213c
SSDEEP

98304:PDqPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2K:PDqPe1Cxcxk3ZAEUadzR8yc4K

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3203) 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

1580 mssecsvc.exe
2704 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 (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	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\{1966DC90-6F93-469F-A026-6571FB8734E0}	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1966DC90-6F93-469F-A026-6571FB8734E0}\WpadDecision = "0"	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\History\CachePrefix = "Visited:"	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0038000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\36-2a-5f-36-bb-1f	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\36-2a-5f-36-bb-1f\WpadDecision = "0"	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\36-2a-5f-36-bb-1f\WpadDecisionTime = 3034349ac5adda01	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\Cookies\CachePrefix = "Cookie:"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1966DC90-6F93-469F-A026-6571FB8734E0}\WpadDecisionReason = "1"	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1966DC90-6F93-469F-A026-6571FB8734E0}\WpadNetworkName = "Network 3"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\36-2a-5f-36-bb-1f\WpadDecisionReason = "1"	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1966DC90-6F93-469F-A026-6571FB8734E0}\36-2a-5f-36-bb-1f	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	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\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\ZoneMap\AutoDetect = "1"	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1966DC90-6F93-469F-A026-6571FB8734E0}\WpadDecisionTime = 3034349ac5adda01	mssecsvc.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

mssecsvc.exemssecsvc.exe

pid process

1580 mssecsvc.exe
2704 mssecsvc.exe

Suspicious behavior: MapViewOfSection 43 IoCs

Processes:

mssecsvc.exemssecsvc.exe

pid	process
1580	mssecsvc.exe
1580	mssecsvc.exe
1580	mssecsvc.exe
1580	mssecsvc.exe
1580	mssecsvc.exe
1580	mssecsvc.exe
1580	mssecsvc.exe
1580	mssecsvc.exe
1580	mssecsvc.exe
1580	mssecsvc.exe
1580	mssecsvc.exe
1580	mssecsvc.exe
1580	mssecsvc.exe
1580	mssecsvc.exe
1580	mssecsvc.exe
1580	mssecsvc.exe
1580	mssecsvc.exe
1580	mssecsvc.exe
1580	mssecsvc.exe
1580	mssecsvc.exe
1580	mssecsvc.exe
2704	mssecsvc.exe
2704	mssecsvc.exe
2704	mssecsvc.exe
2704	mssecsvc.exe
2704	mssecsvc.exe
2704	mssecsvc.exe
2704	mssecsvc.exe
2704	mssecsvc.exe
2704	mssecsvc.exe
2704	mssecsvc.exe
2704	mssecsvc.exe
2704	mssecsvc.exe
2704	mssecsvc.exe
2704	mssecsvc.exe
2704	mssecsvc.exe
2704	mssecsvc.exe
2704	mssecsvc.exe
2704	mssecsvc.exe
2704	mssecsvc.exe
2704	mssecsvc.exe
2704	mssecsvc.exe
2704	mssecsvc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

mssecsvc.exemssecsvc.exe

description pid process

Token: SeDebugPrivilege 1580 mssecsvc.exe
Token: SeDebugPrivilege 2704 mssecsvc.exe

description	pid	process
Token: SeDebugPrivilege	1580	mssecsvc.exe
Token: SeDebugPrivilege	2704	mssecsvc.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

rundll32.exerundll32.exemssecsvc.exe

description	pid	process	target process
PID 2364 wrote to memory of 2372	2364	rundll32.exe	rundll32.exe
PID 2364 wrote to memory of 2372	2364	rundll32.exe	rundll32.exe
PID 2364 wrote to memory of 2372	2364	rundll32.exe	rundll32.exe
PID 2364 wrote to memory of 2372	2364	rundll32.exe	rundll32.exe
PID 2364 wrote to memory of 2372	2364	rundll32.exe	rundll32.exe
PID 2364 wrote to memory of 2372	2364	rundll32.exe	rundll32.exe
PID 2364 wrote to memory of 2372	2364	rundll32.exe	rundll32.exe
PID 2372 wrote to memory of 1580	2372	rundll32.exe	mssecsvc.exe
PID 2372 wrote to memory of 1580	2372	rundll32.exe	mssecsvc.exe
PID 2372 wrote to memory of 1580	2372	rundll32.exe	mssecsvc.exe
PID 2372 wrote to memory of 1580	2372	rundll32.exe	mssecsvc.exe
PID 1580 wrote to memory of 384	1580	mssecsvc.exe	wininit.exe
PID 1580 wrote to memory of 384	1580	mssecsvc.exe	wininit.exe
PID 1580 wrote to memory of 384	1580	mssecsvc.exe	wininit.exe
PID 1580 wrote to memory of 384	1580	mssecsvc.exe	wininit.exe
PID 1580 wrote to memory of 384	1580	mssecsvc.exe	wininit.exe
PID 1580 wrote to memory of 384	1580	mssecsvc.exe	wininit.exe
PID 1580 wrote to memory of 384	1580	mssecsvc.exe	wininit.exe
PID 1580 wrote to memory of 392	1580	mssecsvc.exe	csrss.exe
PID 1580 wrote to memory of 392	1580	mssecsvc.exe	csrss.exe
PID 1580 wrote to memory of 392	1580	mssecsvc.exe	csrss.exe
PID 1580 wrote to memory of 392	1580	mssecsvc.exe	csrss.exe
PID 1580 wrote to memory of 392	1580	mssecsvc.exe	csrss.exe
PID 1580 wrote to memory of 392	1580	mssecsvc.exe	csrss.exe
PID 1580 wrote to memory of 392	1580	mssecsvc.exe	csrss.exe
PID 1580 wrote to memory of 432	1580	mssecsvc.exe	winlogon.exe
PID 1580 wrote to memory of 432	1580	mssecsvc.exe	winlogon.exe
PID 1580 wrote to memory of 432	1580	mssecsvc.exe	winlogon.exe
PID 1580 wrote to memory of 432	1580	mssecsvc.exe	winlogon.exe
PID 1580 wrote to memory of 432	1580	mssecsvc.exe	winlogon.exe
PID 1580 wrote to memory of 432	1580	mssecsvc.exe	winlogon.exe
PID 1580 wrote to memory of 432	1580	mssecsvc.exe	winlogon.exe
PID 1580 wrote to memory of 476	1580	mssecsvc.exe	services.exe
PID 1580 wrote to memory of 476	1580	mssecsvc.exe	services.exe
PID 1580 wrote to memory of 476	1580	mssecsvc.exe	services.exe
PID 1580 wrote to memory of 476	1580	mssecsvc.exe	services.exe
PID 1580 wrote to memory of 476	1580	mssecsvc.exe	services.exe
PID 1580 wrote to memory of 476	1580	mssecsvc.exe	services.exe
PID 1580 wrote to memory of 476	1580	mssecsvc.exe	services.exe
PID 1580 wrote to memory of 492	1580	mssecsvc.exe	lsass.exe
PID 1580 wrote to memory of 492	1580	mssecsvc.exe	lsass.exe
PID 1580 wrote to memory of 492	1580	mssecsvc.exe	lsass.exe
PID 1580 wrote to memory of 492	1580	mssecsvc.exe	lsass.exe
PID 1580 wrote to memory of 492	1580	mssecsvc.exe	lsass.exe
PID 1580 wrote to memory of 492	1580	mssecsvc.exe	lsass.exe
PID 1580 wrote to memory of 492	1580	mssecsvc.exe	lsass.exe
PID 1580 wrote to memory of 500	1580	mssecsvc.exe	lsm.exe
PID 1580 wrote to memory of 500	1580	mssecsvc.exe	lsm.exe
PID 1580 wrote to memory of 500	1580	mssecsvc.exe	lsm.exe
PID 1580 wrote to memory of 500	1580	mssecsvc.exe	lsm.exe
PID 1580 wrote to memory of 500	1580	mssecsvc.exe	lsm.exe
PID 1580 wrote to memory of 500	1580	mssecsvc.exe	lsm.exe
PID 1580 wrote to memory of 500	1580	mssecsvc.exe	lsm.exe
PID 1580 wrote to memory of 592	1580	mssecsvc.exe	svchost.exe
PID 1580 wrote to memory of 592	1580	mssecsvc.exe	svchost.exe
PID 1580 wrote to memory of 592	1580	mssecsvc.exe	svchost.exe
PID 1580 wrote to memory of 592	1580	mssecsvc.exe	svchost.exe
PID 1580 wrote to memory of 592	1580	mssecsvc.exe	svchost.exe
PID 1580 wrote to memory of 592	1580	mssecsvc.exe	svchost.exe
PID 1580 wrote to memory of 592	1580	mssecsvc.exe	svchost.exe
PID 1580 wrote to memory of 676	1580	mssecsvc.exe	svchost.exe
PID 1580 wrote to memory of 676	1580	mssecsvc.exe	svchost.exe
PID 1580 wrote to memory of 676	1580	mssecsvc.exe	svchost.exe
PID 1580 wrote to memory of 676	1580	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:476

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k DcomLaunch
3⤵
PID:592

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
4⤵
PID:1560

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:744

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted
3⤵
PID:804

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
4⤵
PID:1116

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs
3⤵
PID:848

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService
3⤵
PID:952

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k NetworkService
3⤵
PID:108

C:\Windows\System32\spoolsv.exe
C:\Windows\System32\spoolsv.exe
3⤵
PID:1040

C:\Windows\system32\taskhost.exe
"taskhost.exe"
3⤵
PID:1052

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
3⤵
PID:1136

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
3⤵
PID:2076

C:\Windows\system32\sppsvc.exe
C:\Windows\system32\sppsvc.exe
3⤵
PID:2340

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:2704

C:\Windows\system32\lsass.exe
C:\Windows\system32\lsass.exe
2⤵
PID:492

C:\Windows\system32\lsm.exe
C:\Windows\system32\lsm.exe
2⤵
PID:500

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:1180

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\6e344b6b1c9fd13c81b90ef87f7891b4_JaffaCakes118.dll,#1
2⤵
- Suspicious use of WriteProcessMemory
PID:2364

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\6e344b6b1c9fd13c81b90ef87f7891b4_JaffaCakes118.dll,#1
3⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2372

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:1580

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
f084bf750af6c417177879334c4e6a23

SHA1
dd51fd06f0f23a21e441839d5e7bddffc29c3f12

SHA256
1f62905d40a708bffa7d64947bdc953f16eec73ec6ab33667e0566022b33248d

SHA512
f34d2d9bfc38cecc934b603c01fe89856e8686e09df7227ad64e0dd596657713b202cf3eb8f2ffbf0f9082789fd1ef59faba26ada2f1f55fffc5eb8c87f7f323

Download Submit
memory/1580-6-0x0000000000400000-0x0000000000A72000-memory.dmp

Filesize
6.4MB

Download
memory/1580-7-0x0000000000400000-0x0000000000A72000-memory.dmp

Filesize
6.4MB

Download
memory/1580-12-0x0000000000400000-0x0000000000A72000-memory.dmp

Filesize
6.4MB

Download
memory/2704-9-0x0000000000400000-0x0000000000A72000-memory.dmp

Filesize
6.4MB

Download
memory/2704-13-0x0000000000400000-0x0000000000A72000-memory.dmp

Filesize
6.4MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads