wannacry | 3ea6a735620fd9848392a22da2ae45cc79ca27f1f9d6ff42430fa85f87bde135

General

Target

36a5935423d8f1a0cbd42e897779c698_JaffaCakes118.exe
Size

3.6MB
MD5

36a5935423d8f1a0cbd42e897779c698
SHA1

bb9232369c08d4707fb3966f6fad6c0dcccea6be
SHA256

3ea6a735620fd9848392a22da2ae45cc79ca27f1f9d6ff42430fa85f87bde135
SHA512

c2e215c12cc77659e8047021d173d76945e6a82f0504ec7d2dfe0094bfcd3ea531173b13e9ee937d1dceb498f8e3811914c199279e10c14852a5fba0b42e8a02
SSDEEP

98304:XDqPoBhz1aRxcSUDk36SAlxWa9P593R8yAVp2HI:XDqPe1Cxcxk3ZAeadzR8yc4HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3138) 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 1 IoCs

Processes:

tasksche.exe

pid process

2136 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
2136	tasksche.exe

Drops file in System32 directory 1 IoCs

Processes:

36a5935423d8f1a0cbd42e897779c698_JaffaCakes118.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	36a5935423d8f1a0cbd42e897779c698_JaffaCakes118.exe

Drops file in Windows directory 1 IoCs

Processes:

36a5935423d8f1a0cbd42e897779c698_JaffaCakes118.exe

description ioc process

File created C:\WINDOWS\tasksche.exe 36a5935423d8f1a0cbd42e897779c698_JaffaCakes118.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	36a5935423d8f1a0cbd42e897779c698_JaffaCakes118.exe

Modifies data under HKEY_USERS 24 IoCs

Processes:

36a5935423d8f1a0cbd42e897779c698_JaffaCakes118.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	36a5935423d8f1a0cbd42e897779c698_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00c9000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	36a5935423d8f1a0cbd42e897779c698_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{37BAAEC5-C191-4C28-BB0F-E325833E4815}	36a5935423d8f1a0cbd42e897779c698_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\46-47-65-7c-a1-d4\WpadDecisionReason = "1"	36a5935423d8f1a0cbd42e897779c698_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	36a5935423d8f1a0cbd42e897779c698_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	36a5935423d8f1a0cbd42e897779c698_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	36a5935423d8f1a0cbd42e897779c698_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{37BAAEC5-C191-4C28-BB0F-E325833E4815}\WpadNetworkName = "Network 3"	36a5935423d8f1a0cbd42e897779c698_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\46-47-65-7c-a1-d4	36a5935423d8f1a0cbd42e897779c698_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\46-47-65-7c-a1-d4\WpadDecision = "0"	36a5935423d8f1a0cbd42e897779c698_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	36a5935423d8f1a0cbd42e897779c698_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	36a5935423d8f1a0cbd42e897779c698_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	36a5935423d8f1a0cbd42e897779c698_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{37BAAEC5-C191-4C28-BB0F-E325833E4815}\WpadDecisionTime = a01b35bdeaa3da01	36a5935423d8f1a0cbd42e897779c698_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{37BAAEC5-C191-4C28-BB0F-E325833E4815}\WpadDecision = "0"	36a5935423d8f1a0cbd42e897779c698_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\46-47-65-7c-a1-d4\WpadDecisionTime = a01b35bdeaa3da01	36a5935423d8f1a0cbd42e897779c698_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	36a5935423d8f1a0cbd42e897779c698_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	36a5935423d8f1a0cbd42e897779c698_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	36a5935423d8f1a0cbd42e897779c698_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{37BAAEC5-C191-4C28-BB0F-E325833E4815}\WpadDecisionReason = "1"	36a5935423d8f1a0cbd42e897779c698_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{37BAAEC5-C191-4C28-BB0F-E325833E4815}\46-47-65-7c-a1-d4	36a5935423d8f1a0cbd42e897779c698_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	36a5935423d8f1a0cbd42e897779c698_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	36a5935423d8f1a0cbd42e897779c698_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	36a5935423d8f1a0cbd42e897779c698_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\36a5935423d8f1a0cbd42e897779c698_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\36a5935423d8f1a0cbd42e897779c698_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
PID:2328

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
2⤵
- Executes dropped EXE
PID:2136

C:\Users\Admin\AppData\Local\Temp\36a5935423d8f1a0cbd42e897779c698_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\36a5935423d8f1a0cbd42e897779c698_JaffaCakes118.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2884

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\tasksche.exe
Filesize
3.4MB

MD5
fe3e74e41f6ef49adc45f69b1d72b7e7

SHA1
6ff1843201c34e943eedd340821f3e7267e2786d

SHA256
e1de9013895c62550f8ed580db4de38bc903338cb2a9080444fe235bb532c73d

SHA512
09f118f989516b72efa1241da378a45e664ee8d8fbbcbcbed17e5e9b53f326fdf6a296e1c4bad0b57ad5f1897402ccac8226d08d0b4db07a2b0bf37df4faf2fc

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