wannacry | da4e4351bad4ab16c4774c29c22e37167f6458c547d2c681c9c88dd4b147bd22

General

Target

20240916777c422afeed685b427fbcbb6c7b22d5wannacry.exe
Size

3.6MB
MD5

777c422afeed685b427fbcbb6c7b22d5
SHA1

1a5e1a2c5e0f1a4b8bffebcccd977bbe38b0e8d8
SHA256

da4e4351bad4ab16c4774c29c22e37167f6458c547d2c681c9c88dd4b147bd22
SHA512

bb1d7cf9a09f437f48b67a86b84329a9c89285a98fb771b589ee236a217deeec84d810bdcf81c5e1ac44ea82c8d75f5071e301422a41e01e3775d03230f94e0f
SSDEEP

49152:XnAQA0y4YnEEeZezw2uvgyd7+KnT2becwT6DGMIBHuLZyLUcRhRt/IbmwW6LC:XDA0yKi9ywKSbevWSdOLZSPebdWOC

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3187) 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
2940	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	20240916777c422afeed685b427fbcbb6c7b22d5wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	20240916777c422afeed685b427fbcbb6c7b22d5wannacry.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	20240916777c422afeed685b427fbcbb6c7b22d5wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	20240916777c422afeed685b427fbcbb6c7b22d5wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{72CF9A93-4269-4E72-B137-BBA14619602E}\ae-5b-57-76-1a-82	20240916777c422afeed685b427fbcbb6c7b22d5wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ae-5b-57-76-1a-82\WpadDecisionTime = 404b1ec50108db01	20240916777c422afeed685b427fbcbb6c7b22d5wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	20240916777c422afeed685b427fbcbb6c7b22d5wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	20240916777c422afeed685b427fbcbb6c7b22d5wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	20240916777c422afeed685b427fbcbb6c7b22d5wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0116000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	20240916777c422afeed685b427fbcbb6c7b22d5wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{72CF9A93-4269-4E72-B137-BBA14619602E}	20240916777c422afeed685b427fbcbb6c7b22d5wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{72CF9A93-4269-4E72-B137-BBA14619602E}\WpadNetworkName = "Network 3"	20240916777c422afeed685b427fbcbb6c7b22d5wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	20240916777c422afeed685b427fbcbb6c7b22d5wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	20240916777c422afeed685b427fbcbb6c7b22d5wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{72CF9A93-4269-4E72-B137-BBA14619602E}\WpadDecisionTime = 404b1ec50108db01	20240916777c422afeed685b427fbcbb6c7b22d5wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ae-5b-57-76-1a-82\WpadDecisionReason = "1"	20240916777c422afeed685b427fbcbb6c7b22d5wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	20240916777c422afeed685b427fbcbb6c7b22d5wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	20240916777c422afeed685b427fbcbb6c7b22d5wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	20240916777c422afeed685b427fbcbb6c7b22d5wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	20240916777c422afeed685b427fbcbb6c7b22d5wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	20240916777c422afeed685b427fbcbb6c7b22d5wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{72CF9A93-4269-4E72-B137-BBA14619602E}\WpadDecisionReason = "1"	20240916777c422afeed685b427fbcbb6c7b22d5wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ae-5b-57-76-1a-82\WpadDecision = "0"	20240916777c422afeed685b427fbcbb6c7b22d5wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	20240916777c422afeed685b427fbcbb6c7b22d5wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	20240916777c422afeed685b427fbcbb6c7b22d5wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	20240916777c422afeed685b427fbcbb6c7b22d5wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{72CF9A93-4269-4E72-B137-BBA14619602E}\WpadDecision = "0"	20240916777c422afeed685b427fbcbb6c7b22d5wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ae-5b-57-76-1a-82	20240916777c422afeed685b427fbcbb6c7b22d5wannacry.exe

C:\Users\Admin\AppData\Local\Temp\20240916777c422afeed685b427fbcbb6c7b22d5wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\20240916777c422afeed685b427fbcbb6c7b22d5wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2320
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2940

C:\Users\Admin\AppData\Local\Temp\20240916777c422afeed685b427fbcbb6c7b22d5wannacry.exe
C:\Users\Admin\AppData\Local\Temp\20240916777c422afeed685b427fbcbb6c7b22d5wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2804

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
e81d366634fe11f8b8a3ff71f4901009

SHA1
0a8c76ba24c779d89f3fa41333cd888077869061

SHA256
83aa98e525e348eae32c7901d349c8258a4704e4b32699ec6d545a781551d6f4

SHA512
938b951f67413b3c595f45d778e5a94c95c833aba769a2fb4b31fcdc5f35bd9aa1d7068bd5338555ca10695911c23e0c79f0e6c367184cea70b59f10be5d81e9

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