wannacry | fce1a25fa617d0367944a2c8e9b5b9c359c12ae12f0a00694086a48a05476707

General

Target

aec2d49eb06a8dd0df471b15fbab97e0_JaffaCakes118.dll
Size

5.0MB
MD5

aec2d49eb06a8dd0df471b15fbab97e0
SHA1

e846344e2455023cca62c449a8f9ab682ad156f2
SHA256

fce1a25fa617d0367944a2c8e9b5b9c359c12ae12f0a00694086a48a05476707
SHA512

d52e7d2b3f72f26406f8860b03c9cf45e5ad5f36778227f9f63bab11b0510773184c596161cd8f0b8697a618b73991aee88ecd6fadb20ba8da4f64a8b9616043
SSDEEP

49152:4nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAAZ0vZ6GIk:oDqPoBhz1aRxcSUDk36SAc0B6GIk

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3261) 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

2208 mssecsvc.exe
2812 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 = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	mssecsvc.exe
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 = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f017c000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{127D41F4-8ED5-49D8-87E8-4A16086AD70F}\WpadNetworkName = "Network 3"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b6-98-87-75-04-e4\WpadDecisionReason = "1"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b6-98-87-75-04-e4\WpadDecision = "0"	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\ZoneMap\AutoDetect = "1"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{127D41F4-8ED5-49D8-87E8-4A16086AD70F}\WpadDecisionReason = "1"	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\ZoneMap\	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{127D41F4-8ED5-49D8-87E8-4A16086AD70F}	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{127D41F4-8ED5-49D8-87E8-4A16086AD70F}\b6-98-87-75-04-e4	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 (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\History\CachePrefix = "Visited:"	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{127D41F4-8ED5-49D8-87E8-4A16086AD70F}\WpadDecisionTime = 7020f05c2cbfda01	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{127D41F4-8ED5-49D8-87E8-4A16086AD70F}\WpadDecision = "0"	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b6-98-87-75-04-e4	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b6-98-87-75-04-e4\WpadDecisionTime = 7020f05c2cbfda01	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	mssecsvc.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

mssecsvc.exemssecsvc.exe

pid process

2208 mssecsvc.exe
2812 mssecsvc.exe

Suspicious behavior: MapViewOfSection 43 IoCs

Processes:

mssecsvc.exemssecsvc.exe

pid	process
2208	mssecsvc.exe
2208	mssecsvc.exe
2208	mssecsvc.exe
2208	mssecsvc.exe
2208	mssecsvc.exe
2208	mssecsvc.exe
2208	mssecsvc.exe
2208	mssecsvc.exe
2208	mssecsvc.exe
2208	mssecsvc.exe
2208	mssecsvc.exe
2208	mssecsvc.exe
2208	mssecsvc.exe
2208	mssecsvc.exe
2208	mssecsvc.exe
2208	mssecsvc.exe
2208	mssecsvc.exe
2208	mssecsvc.exe
2208	mssecsvc.exe
2208	mssecsvc.exe
2208	mssecsvc.exe
2812	mssecsvc.exe
2812	mssecsvc.exe
2812	mssecsvc.exe
2812	mssecsvc.exe
2812	mssecsvc.exe
2812	mssecsvc.exe
2812	mssecsvc.exe
2812	mssecsvc.exe
2812	mssecsvc.exe
2812	mssecsvc.exe
2812	mssecsvc.exe
2812	mssecsvc.exe
2812	mssecsvc.exe
2812	mssecsvc.exe
2812	mssecsvc.exe
2812	mssecsvc.exe
2812	mssecsvc.exe
2812	mssecsvc.exe
2812	mssecsvc.exe
2812	mssecsvc.exe
2812	mssecsvc.exe
2812	mssecsvc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

mssecsvc.exemssecsvc.exe

description pid process

Token: SeDebugPrivilege 2208 mssecsvc.exe
Token: SeDebugPrivilege 2812 mssecsvc.exe

description	pid	process
Token: SeDebugPrivilege	2208	mssecsvc.exe
Token: SeDebugPrivilege	2812	mssecsvc.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

rundll32.exerundll32.exemssecsvc.exe

description	pid	process	target process
PID 2108 wrote to memory of 2396	2108	rundll32.exe	rundll32.exe
PID 2108 wrote to memory of 2396	2108	rundll32.exe	rundll32.exe
PID 2108 wrote to memory of 2396	2108	rundll32.exe	rundll32.exe
PID 2108 wrote to memory of 2396	2108	rundll32.exe	rundll32.exe
PID 2108 wrote to memory of 2396	2108	rundll32.exe	rundll32.exe
PID 2108 wrote to memory of 2396	2108	rundll32.exe	rundll32.exe
PID 2108 wrote to memory of 2396	2108	rundll32.exe	rundll32.exe
PID 2396 wrote to memory of 2208	2396	rundll32.exe	mssecsvc.exe
PID 2396 wrote to memory of 2208	2396	rundll32.exe	mssecsvc.exe
PID 2396 wrote to memory of 2208	2396	rundll32.exe	mssecsvc.exe
PID 2396 wrote to memory of 2208	2396	rundll32.exe	mssecsvc.exe
PID 2208 wrote to memory of 384	2208	mssecsvc.exe	wininit.exe
PID 2208 wrote to memory of 384	2208	mssecsvc.exe	wininit.exe
PID 2208 wrote to memory of 384	2208	mssecsvc.exe	wininit.exe
PID 2208 wrote to memory of 384	2208	mssecsvc.exe	wininit.exe
PID 2208 wrote to memory of 384	2208	mssecsvc.exe	wininit.exe
PID 2208 wrote to memory of 384	2208	mssecsvc.exe	wininit.exe
PID 2208 wrote to memory of 384	2208	mssecsvc.exe	wininit.exe
PID 2208 wrote to memory of 396	2208	mssecsvc.exe	csrss.exe
PID 2208 wrote to memory of 396	2208	mssecsvc.exe	csrss.exe
PID 2208 wrote to memory of 396	2208	mssecsvc.exe	csrss.exe
PID 2208 wrote to memory of 396	2208	mssecsvc.exe	csrss.exe
PID 2208 wrote to memory of 396	2208	mssecsvc.exe	csrss.exe
PID 2208 wrote to memory of 396	2208	mssecsvc.exe	csrss.exe
PID 2208 wrote to memory of 396	2208	mssecsvc.exe	csrss.exe
PID 2208 wrote to memory of 432	2208	mssecsvc.exe	winlogon.exe
PID 2208 wrote to memory of 432	2208	mssecsvc.exe	winlogon.exe
PID 2208 wrote to memory of 432	2208	mssecsvc.exe	winlogon.exe
PID 2208 wrote to memory of 432	2208	mssecsvc.exe	winlogon.exe
PID 2208 wrote to memory of 432	2208	mssecsvc.exe	winlogon.exe
PID 2208 wrote to memory of 432	2208	mssecsvc.exe	winlogon.exe
PID 2208 wrote to memory of 432	2208	mssecsvc.exe	winlogon.exe
PID 2208 wrote to memory of 476	2208	mssecsvc.exe	services.exe
PID 2208 wrote to memory of 476	2208	mssecsvc.exe	services.exe
PID 2208 wrote to memory of 476	2208	mssecsvc.exe	services.exe
PID 2208 wrote to memory of 476	2208	mssecsvc.exe	services.exe
PID 2208 wrote to memory of 476	2208	mssecsvc.exe	services.exe
PID 2208 wrote to memory of 476	2208	mssecsvc.exe	services.exe
PID 2208 wrote to memory of 476	2208	mssecsvc.exe	services.exe
PID 2208 wrote to memory of 492	2208	mssecsvc.exe	lsass.exe
PID 2208 wrote to memory of 492	2208	mssecsvc.exe	lsass.exe
PID 2208 wrote to memory of 492	2208	mssecsvc.exe	lsass.exe
PID 2208 wrote to memory of 492	2208	mssecsvc.exe	lsass.exe
PID 2208 wrote to memory of 492	2208	mssecsvc.exe	lsass.exe
PID 2208 wrote to memory of 492	2208	mssecsvc.exe	lsass.exe
PID 2208 wrote to memory of 492	2208	mssecsvc.exe	lsass.exe
PID 2208 wrote to memory of 500	2208	mssecsvc.exe	lsm.exe
PID 2208 wrote to memory of 500	2208	mssecsvc.exe	lsm.exe
PID 2208 wrote to memory of 500	2208	mssecsvc.exe	lsm.exe
PID 2208 wrote to memory of 500	2208	mssecsvc.exe	lsm.exe
PID 2208 wrote to memory of 500	2208	mssecsvc.exe	lsm.exe
PID 2208 wrote to memory of 500	2208	mssecsvc.exe	lsm.exe
PID 2208 wrote to memory of 500	2208	mssecsvc.exe	lsm.exe
PID 2208 wrote to memory of 592	2208	mssecsvc.exe	svchost.exe
PID 2208 wrote to memory of 592	2208	mssecsvc.exe	svchost.exe
PID 2208 wrote to memory of 592	2208	mssecsvc.exe	svchost.exe
PID 2208 wrote to memory of 592	2208	mssecsvc.exe	svchost.exe
PID 2208 wrote to memory of 592	2208	mssecsvc.exe	svchost.exe
PID 2208 wrote to memory of 592	2208	mssecsvc.exe	svchost.exe
PID 2208 wrote to memory of 592	2208	mssecsvc.exe	svchost.exe
PID 2208 wrote to memory of 672	2208	mssecsvc.exe	svchost.exe
PID 2208 wrote to memory of 672	2208	mssecsvc.exe	svchost.exe
PID 2208 wrote to memory of 672	2208	mssecsvc.exe	svchost.exe
PID 2208 wrote to memory of 672	2208	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:1080

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:736

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:1164

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:980

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k NetworkService
3⤵
PID:268

C:\Windows\System32\spoolsv.exe
C:\Windows\System32\spoolsv.exe
3⤵
PID:324

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
3⤵
PID:1008

C:\Windows\system32\taskhost.exe
"taskhost.exe"
3⤵
PID:1116

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
3⤵
PID:2436

C:\Windows\system32\sppsvc.exe
C:\Windows\system32\sppsvc.exe
3⤵
PID:2964

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:2812

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:396

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

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1224

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\aec2d49eb06a8dd0df471b15fbab97e0_JaffaCakes118.dll,#1
2⤵
- Suspicious use of WriteProcessMemory
PID:2108

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\aec2d49eb06a8dd0df471b15fbab97e0_JaffaCakes118.dll,#1
3⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2396

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:2208

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
6d3372dd43153473617ab7c373c44920

SHA1
fc35e58c8cd08611a2c71723af32e0ec55eaddad

SHA256
b9df76897340af196874f7ec7e43592909c82046068bc84bf76bd3cad2c2f602

SHA512
ae3687c50f3ce1d581f40ac3bc8ac8597284dd2630bc030d83183561d5a224417d07247b6995699c8584372e254ab99ecb6652205b4216518fa90ca2201c74ff

Download Submit
memory/2208-6-0x0000000000400000-0x0000000000A73000-memory.dmp

Filesize
6.4MB

Download
memory/2208-8-0x0000000077980000-0x0000000077981000-memory.dmp

Filesize
4KB

Download
memory/2208-7-0x000000007797F000-0x0000000077980000-memory.dmp

Filesize
4KB

Download
memory/2208-13-0x000000007EF70000-0x000000007EF7C000-memory.dmp

Filesize
48KB

Download
memory/2208-12-0x000000007797F000-0x0000000077980000-memory.dmp

Filesize
4KB

Download
memory/2208-11-0x0000000077980000-0x0000000077981000-memory.dmp

Filesize
4KB

Download
memory/2208-17-0x000000007EF70000-0x000000007EF7C000-memory.dmp

Filesize
48KB

Download
memory/2208-16-0x0000000000400000-0x0000000000A73000-memory.dmp

Filesize
6.4MB

Download
memory/2812-10-0x0000000000400000-0x0000000000A73000-memory.dmp

Filesize
6.4MB

Download
memory/2812-18-0x0000000000400000-0x0000000000A73000-memory.dmp

Filesize
6.4MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads