wannacry | cf3dabb08817315d7549501c3f27f929d166b63ff57743a9bda1482d78456ac0

General

Target

2024-06-13_172a44f381c72d4e5642b5014ec56797_wannacry.exe
Size

3.6MB
MD5

172a44f381c72d4e5642b5014ec56797
SHA1

286e8fab2705c020362638d4de23bd982a7de187
SHA256

cf3dabb08817315d7549501c3f27f929d166b63ff57743a9bda1482d78456ac0
SHA512

fb82fe8b4880aed3b91928220fa3a0df39aaadc36b4378cd0d44d9344139d1bcdcf6db0b0591dff50617c726d41fb7bbac427cd19133f670e2c3472497317743
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAA4aEau3R8yAH1plAHI:yDqPoBhz1aRxcSUDk36SAX3R8yAVp2HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (2662) 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

2748 tasksche.exe

pid	process
2748	tasksche.exe

Drops file in System32 directory 1 IoCs

Processes:

2024-06-13_172a44f381c72d4e5642b5014ec56797_wannacry.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2024-06-13_172a44f381c72d4e5642b5014ec56797_wannacry.exe

Drops file in Windows directory 1 IoCs

Processes:

2024-06-13_172a44f381c72d4e5642b5014ec56797_wannacry.exe

description ioc process

File created C:\WINDOWS\tasksche.exe 2024-06-13_172a44f381c72d4e5642b5014ec56797_wannacry.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	2024-06-13_172a44f381c72d4e5642b5014ec56797_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

Processes:

2024-06-13_172a44f381c72d4e5642b5014ec56797_wannacry.exe

description	ioc	process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\46-47-65-7c-a1-d4\WpadDecisionTime = f04c0daf76bdda01	2024-06-13_172a44f381c72d4e5642b5014ec56797_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-06-13_172a44f381c72d4e5642b5014ec56797_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-06-13_172a44f381c72d4e5642b5014ec56797_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-06-13_172a44f381c72d4e5642b5014ec56797_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-06-13_172a44f381c72d4e5642b5014ec56797_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00c9000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-06-13_172a44f381c72d4e5642b5014ec56797_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-06-13_172a44f381c72d4e5642b5014ec56797_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{37BAAEC5-C191-4C28-BB0F-E325833E4815}	2024-06-13_172a44f381c72d4e5642b5014ec56797_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{37BAAEC5-C191-4C28-BB0F-E325833E4815}\WpadNetworkName = "Network 3"	2024-06-13_172a44f381c72d4e5642b5014ec56797_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-06-13_172a44f381c72d4e5642b5014ec56797_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-06-13_172a44f381c72d4e5642b5014ec56797_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-06-13_172a44f381c72d4e5642b5014ec56797_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-06-13_172a44f381c72d4e5642b5014ec56797_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-06-13_172a44f381c72d4e5642b5014ec56797_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{37BAAEC5-C191-4C28-BB0F-E325833E4815}\WpadDecisionTime = f04c0daf76bdda01	2024-06-13_172a44f381c72d4e5642b5014ec56797_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{37BAAEC5-C191-4C28-BB0F-E325833E4815}\46-47-65-7c-a1-d4	2024-06-13_172a44f381c72d4e5642b5014ec56797_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\46-47-65-7c-a1-d4\WpadDecision = "0"	2024-06-13_172a44f381c72d4e5642b5014ec56797_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\46-47-65-7c-a1-d4	2024-06-13_172a44f381c72d4e5642b5014ec56797_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\46-47-65-7c-a1-d4\WpadDecisionReason = "1"	2024-06-13_172a44f381c72d4e5642b5014ec56797_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-06-13_172a44f381c72d4e5642b5014ec56797_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-06-13_172a44f381c72d4e5642b5014ec56797_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-06-13_172a44f381c72d4e5642b5014ec56797_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{37BAAEC5-C191-4C28-BB0F-E325833E4815}\WpadDecisionReason = "1"	2024-06-13_172a44f381c72d4e5642b5014ec56797_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{37BAAEC5-C191-4C28-BB0F-E325833E4815}\WpadDecision = "0"	2024-06-13_172a44f381c72d4e5642b5014ec56797_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-06-13_172a44f381c72d4e5642b5014ec56797_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-13_172a44f381c72d4e5642b5014ec56797_wannacry.exe"
1⤵
- Drops file in Windows directory
PID:2028

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
2⤵
- Executes dropped EXE
PID:2748

C:\Users\Admin\AppData\Local\Temp\2024-06-13_172a44f381c72d4e5642b5014ec56797_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-06-13_172a44f381c72d4e5642b5014ec56797_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:3036

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

1

T1046

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
c9bf55e1f99289cbac8fdbad29af0e1c

SHA1
5ae6bfc7f18123bb1bb4e1ff82cb0b39cd7ecd5a

SHA256
9b699a1b99380d6ee48a980e8de586d12d0e5e27b86f5d7b1dded6fcab579f66

SHA512
702e9791eab59c333361f029c645eaf783b850b5cc0019ddc07953b408d6dc94fd5a05322667c9a674c1250da88a5e5b74b5d012ce3e6ed4157c55112efb1fbb

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