wannacry | 0ee4a1b0bb809e4513331eb799b8e367e8340a5466dc40f8090d49d913574221

General

Target

2024-08-26_e6f032129e657ee6e975ca68c8089ed4_wannacry.exe
Size

5.0MB
MD5

e6f032129e657ee6e975ca68c8089ed4
SHA1

c41e9e6d9ac1a9e04638d918c4017d1a16065dd5
SHA256

0ee4a1b0bb809e4513331eb799b8e367e8340a5466dc40f8090d49d913574221
SHA512

4e505c99a297e71d9d0621d948cbdfaa40a752185fb14e1b34bbba272e6496e6b94e7ec2002171cc3c974eb1df0c64f48ede2b91d46062fbd1c0d7fb1a7700c5
SSDEEP

24576:2bLgddQhfdmMSirYbcMNgef0QeQjG/D8kIqRYoAdNLKz662:2nAQqMSPbcBVQej/1INR

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3306) 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
2040	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	2024-08-26_e6f032129e657ee6e975ca68c8089ed4_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-08-26_e6f032129e657ee6e975ca68c8089ed4_wannacry.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	2024-08-26_e6f032129e657ee6e975ca68c8089ed4_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-08-26_e6f032129e657ee6e975ca68c8089ed4_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-26_e6f032129e657ee6e975ca68c8089ed4_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-08-26_e6f032129e657ee6e975ca68c8089ed4_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-08-26_e6f032129e657ee6e975ca68c8089ed4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{99F4DE71-6915-4DA7-BE85-C41E5546DF22}\1e-f9-9f-84-a1-0e	2024-08-26_e6f032129e657ee6e975ca68c8089ed4_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\1e-f9-9f-84-a1-0e\WpadDecisionTime = a038739ab3f7da01	2024-08-26_e6f032129e657ee6e975ca68c8089ed4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-08-26_e6f032129e657ee6e975ca68c8089ed4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-08-26_e6f032129e657ee6e975ca68c8089ed4_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f019d000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-26_e6f032129e657ee6e975ca68c8089ed4_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{99F4DE71-6915-4DA7-BE85-C41E5546DF22}\WpadDecisionTime = a038739ab3f7da01	2024-08-26_e6f032129e657ee6e975ca68c8089ed4_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{99F4DE71-6915-4DA7-BE85-C41E5546DF22}\WpadNetworkName = "Network 3"	2024-08-26_e6f032129e657ee6e975ca68c8089ed4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\1e-f9-9f-84-a1-0e\WpadDecisionReason = "1"	2024-08-26_e6f032129e657ee6e975ca68c8089ed4_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-26_e6f032129e657ee6e975ca68c8089ed4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-08-26_e6f032129e657ee6e975ca68c8089ed4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-08-26_e6f032129e657ee6e975ca68c8089ed4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-08-26_e6f032129e657ee6e975ca68c8089ed4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-08-26_e6f032129e657ee6e975ca68c8089ed4_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-08-26_e6f032129e657ee6e975ca68c8089ed4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{99F4DE71-6915-4DA7-BE85-C41E5546DF22}\WpadDecision = "0"	2024-08-26_e6f032129e657ee6e975ca68c8089ed4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\1e-f9-9f-84-a1-0e	2024-08-26_e6f032129e657ee6e975ca68c8089ed4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-08-26_e6f032129e657ee6e975ca68c8089ed4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{99F4DE71-6915-4DA7-BE85-C41E5546DF22}	2024-08-26_e6f032129e657ee6e975ca68c8089ed4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{99F4DE71-6915-4DA7-BE85-C41E5546DF22}\WpadDecisionReason = "1"	2024-08-26_e6f032129e657ee6e975ca68c8089ed4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\1e-f9-9f-84-a1-0e\WpadDecision = "0"	2024-08-26_e6f032129e657ee6e975ca68c8089ed4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-08-26_e6f032129e657ee6e975ca68c8089ed4_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-08-26_e6f032129e657ee6e975ca68c8089ed4_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-26_e6f032129e657ee6e975ca68c8089ed4_wannacry.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:2040

C:\Users\Admin\AppData\Local\Temp\2024-08-26_e6f032129e657ee6e975ca68c8089ed4_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-08-26_e6f032129e657ee6e975ca68c8089ed4_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2352

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
1512ad9d119b379755b703df361185d3

SHA1
e495602349a6cb9382cb03a4c9c2df6db7ea9675

SHA256
b202064a00b7ef472331bf52233e89b6eba13ef87fe36133d43c2d8c6d37d6e5

SHA512
105f0128f055496bf0d529def69b750013b28fe2b0df1ae57411fe6dae753170df44b3fa22a1c0102edf727f051c96fc0222182a0be9191e47023c2dd0ef0c1a

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