wannacry | cf6bcf423f34971b5f9cae937fded0069a47f9b0c71ff7e72631d554536afb8c

General

Target

bfa291fe610b5b7b04b5a26c05d29c9a_JaffaCakes118.exe
Size

3.6MB
MD5

bfa291fe610b5b7b04b5a26c05d29c9a
SHA1

8ef08a32f7e5d5ce1f2c89918d6d111ddf707401
SHA256

cf6bcf423f34971b5f9cae937fded0069a47f9b0c71ff7e72631d554536afb8c
SHA512

6a945d30f9dec9e3b9733f37da80b190f435ffd249c4be64a80108dea14e08f244b95042d870889f78c238eb51198ba3d00e6cb23b92e98318375e19cc0d67fb
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAAW:yDqPoBhz1aRxcSUDk36SAV

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3308) 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

pid	Process
2720	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

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	bfa291fe610b5b7b04b5a26c05d29c9a_JaffaCakes118.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	bfa291fe610b5b7b04b5a26c05d29c9a_JaffaCakes118.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bfa291fe610b5b7b04b5a26c05d29c9a_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bfa291fe610b5b7b04b5a26c05d29c9a_JaffaCakes118.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	bfa291fe610b5b7b04b5a26c05d29c9a_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	bfa291fe610b5b7b04b5a26c05d29c9a_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fa-7a-68-3e-d7-68\WpadDecision = "0"	bfa291fe610b5b7b04b5a26c05d29c9a_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	bfa291fe610b5b7b04b5a26c05d29c9a_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	bfa291fe610b5b7b04b5a26c05d29c9a_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	bfa291fe610b5b7b04b5a26c05d29c9a_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	bfa291fe610b5b7b04b5a26c05d29c9a_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	bfa291fe610b5b7b04b5a26c05d29c9a_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	bfa291fe610b5b7b04b5a26c05d29c9a_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f007a000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	bfa291fe610b5b7b04b5a26c05d29c9a_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{37AADF6B-E525-402F-8241-163AF54C3350}\WpadDecisionReason = "1"	bfa291fe610b5b7b04b5a26c05d29c9a_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	bfa291fe610b5b7b04b5a26c05d29c9a_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	bfa291fe610b5b7b04b5a26c05d29c9a_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	bfa291fe610b5b7b04b5a26c05d29c9a_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{37AADF6B-E525-402F-8241-163AF54C3350}\WpadDecision = "0"	bfa291fe610b5b7b04b5a26c05d29c9a_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fa-7a-68-3e-d7-68\WpadDecisionTime = 30251beb7bf6da01	bfa291fe610b5b7b04b5a26c05d29c9a_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fa-7a-68-3e-d7-68	bfa291fe610b5b7b04b5a26c05d29c9a_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	bfa291fe610b5b7b04b5a26c05d29c9a_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{37AADF6B-E525-402F-8241-163AF54C3350}\WpadDecisionTime = 30251beb7bf6da01	bfa291fe610b5b7b04b5a26c05d29c9a_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{37AADF6B-E525-402F-8241-163AF54C3350}\WpadNetworkName = "Network 3"	bfa291fe610b5b7b04b5a26c05d29c9a_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fa-7a-68-3e-d7-68\WpadDecisionReason = "1"	bfa291fe610b5b7b04b5a26c05d29c9a_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	bfa291fe610b5b7b04b5a26c05d29c9a_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{37AADF6B-E525-402F-8241-163AF54C3350}	bfa291fe610b5b7b04b5a26c05d29c9a_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{37AADF6B-E525-402F-8241-163AF54C3350}\fa-7a-68-3e-d7-68	bfa291fe610b5b7b04b5a26c05d29c9a_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\bfa291fe610b5b7b04b5a26c05d29c9a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\bfa291fe610b5b7b04b5a26c05d29c9a_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2172
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2720

C:\Users\Admin\AppData\Local\Temp\bfa291fe610b5b7b04b5a26c05d29c9a_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\bfa291fe610b5b7b04b5a26c05d29c9a_JaffaCakes118.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2360

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
ffebe442d81f85d6169e1c2ecd759c61

SHA1
2276a76789b5bec04ec10b22d463fd55263b4baf

SHA256
d3f097488c575f23fdf587bad875ba5d5daca3d2494425f34f3b5fc82b4ca8f5

SHA512
7ea60426ae157e67fccf81d85a62c51d50c358d29697a166d367800d804f5cc15e3d6c894afc4c429a982d3e345c5a564c2a9c4143e8d497e7613ee77be29124

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