wannacry | c752edde0062acbbb23a28112be27568e77b62bd28383c3fbab4dddf092d33aa

General

Target

2024-08-25_3ed68142254276603e3421bb127b2c15_wannacry.exe
Size

5.0MB
MD5

3ed68142254276603e3421bb127b2c15
SHA1

9538650c18dcd387504fe8f13ffdee6d79d757ad
SHA256

c752edde0062acbbb23a28112be27568e77b62bd28383c3fbab4dddf092d33aa
SHA512

6985ac091a1563d2efdc529775d312f8a1dc181d3407563e20592cd591f7045a4181803c466e43bbfdd720db130e408065ca80d643f825c246dabfb63f4c8204
SSDEEP

24576:2bLgddQhfdmMSirYbcMNgef0PSrHV7YoZnA:2nAQqMSPbcBVarHV7YoG

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3236) 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
2412	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	2024-08-25_3ed68142254276603e3421bb127b2c15_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-08-25_3ed68142254276603e3421bb127b2c15_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	2024-08-25_3ed68142254276603e3421bb127b2c15_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-08-25_3ed68142254276603e3421bb127b2c15_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-08-25_3ed68142254276603e3421bb127b2c15_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-25_3ed68142254276603e3421bb127b2c15_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-08-25_3ed68142254276603e3421bb127b2c15_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-08-25_3ed68142254276603e3421bb127b2c15_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-25_3ed68142254276603e3421bb127b2c15_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-08-25_3ed68142254276603e3421bb127b2c15_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{055487B4-80C8-4500-9EAE-0F46ABFC86FE}\WpadDecisionReason = "1"	2024-08-25_3ed68142254276603e3421bb127b2c15_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-08-25_3ed68142254276603e3421bb127b2c15_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{055487B4-80C8-4500-9EAE-0F46ABFC86FE}\WpadNetworkName = "Network 3"	2024-08-25_3ed68142254276603e3421bb127b2c15_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fe-19-2c-3b-32-cc	2024-08-25_3ed68142254276603e3421bb127b2c15_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fe-19-2c-3b-32-cc\WpadDecisionTime = 90652309d3f6da01	2024-08-25_3ed68142254276603e3421bb127b2c15_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fe-19-2c-3b-32-cc\WpadDecision = "0"	2024-08-25_3ed68142254276603e3421bb127b2c15_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{055487B4-80C8-4500-9EAE-0F46ABFC86FE}\WpadDecision = "0"	2024-08-25_3ed68142254276603e3421bb127b2c15_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-08-25_3ed68142254276603e3421bb127b2c15_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-08-25_3ed68142254276603e3421bb127b2c15_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-08-25_3ed68142254276603e3421bb127b2c15_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-08-25_3ed68142254276603e3421bb127b2c15_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-08-25_3ed68142254276603e3421bb127b2c15_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-08-25_3ed68142254276603e3421bb127b2c15_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{055487B4-80C8-4500-9EAE-0F46ABFC86FE}\WpadDecisionTime = 90652309d3f6da01	2024-08-25_3ed68142254276603e3421bb127b2c15_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fe-19-2c-3b-32-cc\WpadDecisionReason = "1"	2024-08-25_3ed68142254276603e3421bb127b2c15_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00bc000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-25_3ed68142254276603e3421bb127b2c15_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{055487B4-80C8-4500-9EAE-0F46ABFC86FE}	2024-08-25_3ed68142254276603e3421bb127b2c15_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{055487B4-80C8-4500-9EAE-0F46ABFC86FE}\fe-19-2c-3b-32-cc	2024-08-25_3ed68142254276603e3421bb127b2c15_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-08-25_3ed68142254276603e3421bb127b2c15_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-25_3ed68142254276603e3421bb127b2c15_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2384
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2412

C:\Users\Admin\AppData\Local\Temp\2024-08-25_3ed68142254276603e3421bb127b2c15_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-08-25_3ed68142254276603e3421bb127b2c15_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2536

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
a163c87f996ae610925acbb1e792003c

SHA1
b0ea6df83518ce975d8c630baa8882ba77cb8f93

SHA256
e46dcbf747be6d4b37fa50f104928406fa314e83782ff0c16570a5b800d7ccbb

SHA512
22d7ffa8eb87465c233eb2e680193a9db73f6fd09f7c362d86b2869259dc834cdb54e8c098706a8aa68871cc57eeea68a6568748f5a8b3dd96696d52bf98e0f1

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