wannacry | 74d72f5f488bd3c2e28322c8997d44ac61ee3ccc49b7c42220472633af95c0c0

General

Target

7339a0efc768310a86b6d4f61d88b910_JaffaCakes118.exe
Size

3.6MB
MD5

7339a0efc768310a86b6d4f61d88b910
SHA1

05cebfdb6729ed57ca111ae18b645335af7cf006
SHA256

74d72f5f488bd3c2e28322c8997d44ac61ee3ccc49b7c42220472633af95c0c0
SHA512

83a892c1680f94d6422665f4374885350dd887add35f54fb6c1e11b2a99e04e5794fb56b1c3858da32dca86da01e5d842b3d489df84f54dc929f62c238c002fd
SSDEEP

98304:XDqPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2HI:XDqPe1Cxcxk3ZAEUadzR8yc4HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3143) 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

2120 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
2120	tasksche.exe

Drops file in System32 directory 1 IoCs

Processes:

7339a0efc768310a86b6d4f61d88b910_JaffaCakes118.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	7339a0efc768310a86b6d4f61d88b910_JaffaCakes118.exe

Drops file in Windows directory 1 IoCs

Processes:

7339a0efc768310a86b6d4f61d88b910_JaffaCakes118.exe

description ioc process

File created C:\WINDOWS\tasksche.exe 7339a0efc768310a86b6d4f61d88b910_JaffaCakes118.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	7339a0efc768310a86b6d4f61d88b910_JaffaCakes118.exe

Modifies data under HKEY_USERS 24 IoCs

Processes:

7339a0efc768310a86b6d4f61d88b910_JaffaCakes118.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	7339a0efc768310a86b6d4f61d88b910_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	7339a0efc768310a86b6d4f61d88b910_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{822F5F2E-9447-4FC2-9826-69DCB4956D38}\WpadNetworkName = "Network 3"	7339a0efc768310a86b6d4f61d88b910_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\06-bc-26-6c-29-8a\WpadDecisionReason = "1"	7339a0efc768310a86b6d4f61d88b910_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\06-bc-26-6c-29-8a\WpadDecision = "0"	7339a0efc768310a86b6d4f61d88b910_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	7339a0efc768310a86b6d4f61d88b910_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	7339a0efc768310a86b6d4f61d88b910_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	7339a0efc768310a86b6d4f61d88b910_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	7339a0efc768310a86b6d4f61d88b910_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	7339a0efc768310a86b6d4f61d88b910_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	7339a0efc768310a86b6d4f61d88b910_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{822F5F2E-9447-4FC2-9826-69DCB4956D38}\WpadDecisionTime = 107d0542e6aeda01	7339a0efc768310a86b6d4f61d88b910_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\06-bc-26-6c-29-8a	7339a0efc768310a86b6d4f61d88b910_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{822F5F2E-9447-4FC2-9826-69DCB4956D38}\06-bc-26-6c-29-8a	7339a0efc768310a86b6d4f61d88b910_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	7339a0efc768310a86b6d4f61d88b910_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{822F5F2E-9447-4FC2-9826-69DCB4956D38}	7339a0efc768310a86b6d4f61d88b910_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\06-bc-26-6c-29-8a\WpadDecisionTime = 107d0542e6aeda01	7339a0efc768310a86b6d4f61d88b910_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	7339a0efc768310a86b6d4f61d88b910_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	7339a0efc768310a86b6d4f61d88b910_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	7339a0efc768310a86b6d4f61d88b910_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	7339a0efc768310a86b6d4f61d88b910_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0109000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	7339a0efc768310a86b6d4f61d88b910_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{822F5F2E-9447-4FC2-9826-69DCB4956D38}\WpadDecisionReason = "1"	7339a0efc768310a86b6d4f61d88b910_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{822F5F2E-9447-4FC2-9826-69DCB4956D38}\WpadDecision = "0"	7339a0efc768310a86b6d4f61d88b910_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\7339a0efc768310a86b6d4f61d88b910_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\7339a0efc768310a86b6d4f61d88b910_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
PID:2200
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2120

C:\Users\Admin\AppData\Local\Temp\7339a0efc768310a86b6d4f61d88b910_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\7339a0efc768310a86b6d4f61d88b910_JaffaCakes118.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:3056

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

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
7f7ccaa16fb15eb1c7399d422f8363e8

SHA1
bd44d0ab543bf814d93b719c24e90d8dd7111234

SHA256
2584e1521065e45ec3c17767c065429038fc6291c091097ea8b22c8a502c41dd

SHA512
83e334b80de08903cfa9891a3fa349c1ece7e19f8e62b74a017512fa9a7989a0fd31929bf1fc13847bee04f2da3dacf6bc3f5ee58f0e4b9d495f4b9af12ed2b7

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