wannacry | 8a09b786eadcc876bb3251b38f96248fec296615337329459a76c7bd3337ba0f

General

Target

293dad9bb59b93e223dcfc260aa824d9_JaffaCakes118.dll
Size

5.0MB
MD5

293dad9bb59b93e223dcfc260aa824d9
SHA1

f85b522b9108b1a6c9cf7e754d4f74994170c973
SHA256

8a09b786eadcc876bb3251b38f96248fec296615337329459a76c7bd3337ba0f
SHA512

24bec12450524db99b4d971cab42e9445f7994d43381ae77d994ba5635be99928ff136c76335ec01252a881e4fb7d71426d7b64c05008ecbb82f4e61e113292c
SSDEEP

24576:SbLgddQhfdmMSirYbcMNgef0QeQeuZtk6Qo+:SnAQqMSPbcBVQesi

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3173) 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 3 IoCs

Processes:

mssecsvc.exemssecsvc.exetasksche.exe

pid process

528 mssecsvc.exe
1028 mssecsvc.exe
2804 tasksche.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

pid	process
528	mssecsvc.exe
1028	mssecsvc.exe
2804	tasksche.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
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\9a-f0-63-91-8c-ab\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	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\{85191947-F687-4FDE-9FC1-10649B01A83A}\WpadDecisionTime = e0ba0523f0a1da01	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{85191947-F687-4FDE-9FC1-10649B01A83A}\WpadDecision = "0"	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{85191947-F687-4FDE-9FC1-10649B01A83A}\WpadNetworkName = "Network 3"	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\Wpad	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{85191947-F687-4FDE-9FC1-10649B01A83A}\WpadDecisionReason = "1"	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{85191947-F687-4FDE-9FC1-10649B01A83A}\9a-f0-63-91-8c-ab	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\9a-f0-63-91-8c-ab\WpadDecisionTime = e0ba0523f0a1da01	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\9a-f0-63-91-8c-ab\WpadDecision = "0"	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 (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\Content\CachePrefix	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f007d000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\9a-f0-63-91-8c-ab	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 (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	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\{85191947-F687-4FDE-9FC1-10649B01A83A}	mssecsvc.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 2180 wrote to memory of 2928	2180	rundll32.exe	rundll32.exe
PID 2180 wrote to memory of 2928	2180	rundll32.exe	rundll32.exe
PID 2180 wrote to memory of 2928	2180	rundll32.exe	rundll32.exe
PID 2180 wrote to memory of 2928	2180	rundll32.exe	rundll32.exe
PID 2180 wrote to memory of 2928	2180	rundll32.exe	rundll32.exe
PID 2180 wrote to memory of 2928	2180	rundll32.exe	rundll32.exe
PID 2180 wrote to memory of 2928	2180	rundll32.exe	rundll32.exe
PID 2928 wrote to memory of 528	2928	rundll32.exe	mssecsvc.exe
PID 2928 wrote to memory of 528	2928	rundll32.exe	mssecsvc.exe
PID 2928 wrote to memory of 528	2928	rundll32.exe	mssecsvc.exe
PID 2928 wrote to memory of 528	2928	rundll32.exe	mssecsvc.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\293dad9bb59b93e223dcfc260aa824d9_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2180

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\293dad9bb59b93e223dcfc260aa824d9_JaffaCakes118.dll,#1
2⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2928

C:\WINDOWS\mssecsvc.exe
C:\WINDOWS\mssecsvc.exe
3⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:528

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
4⤵
- Executes dropped EXE
PID:2804

C:\WINDOWS\mssecsvc.exe
C:\WINDOWS\mssecsvc.exe -m security
1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:1028

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\mssecsvc.exe
Filesize
3.6MB

MD5
68de9ead67aedc561050fcc0f8e6c138

SHA1
f0f8f29cad1a915c43e308091d7b03a6d9b354a6

SHA256
fce9d0f745ed503ca1f4366daab401a37bf272ece6d1e936994ac57738e68869

SHA512
5a8241c462574be544eda2e8ae1540866a07b9fae8885061091c082025652debeab7b8e03b91f9cf21e252bcb7394c62c09cdfe0024bd3745426184db8f0bb24

Download Submit
C:\Windows\tasksche.exe
Filesize
3.4MB

MD5
498f716dd84ff34aeeab0247df4fe5e4

SHA1
dd446a7dd504cbc861d6131bb4ef1f07540051ae

SHA256
57bbdac9b814d93aecbb92ebcbc654f1230687d8df473db5d08266b3e5cc0c52

SHA512
eb2b9bcdd776a68487e888a1948884ad067125bacaa471dfcec83e2332e9b8eb8d44fa73d7110671bdbee26ac2983a8b74543c82ca1510b7d14f0fcdfce79146

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads