wannacry | 5a5650d8375c0d41dee3f310020ea5490c4559cdf8773c1718a9326dca63536d

General

Target

2025-03-30_035f944d1cebf48654f58575478c54e9_wannacry.exe
Size

5.0MB
MD5

035f944d1cebf48654f58575478c54e9
SHA1

b967d2d5f375a46f6a84353b493069a88f820522
SHA256

5a5650d8375c0d41dee3f310020ea5490c4559cdf8773c1718a9326dca63536d
SHA512

6455b60524dd28af57385f06fa9609b7b01d391c8cb4c86450469426e94ec1d8a1a356ba763e8f8c82ea4213fb1ec3870959c553b208d5a7a39fb41e3acc673c
SSDEEP

49152:XnAQdQy6SAARdhnvxJM0H9PAMEcaEau3R8yAH1plAH6:XDF6SAEdhvxWa9P593R8yAVp2H6

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Wannacry family
wannacry
Contacts a large (3259) 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
1540	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	2025-03-30_035f944d1cebf48654f58575478c54e9_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-03-30_035f944d1cebf48654f58575478c54e9_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	2025-03-30_035f944d1cebf48654f58575478c54e9_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-03-30_035f944d1cebf48654f58575478c54e9_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-03-30_035f944d1cebf48654f58575478c54e9_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-03-30_035f944d1cebf48654f58575478c54e9_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6B141442-7616-4C21-908A-1F9D7B581A19}\WpadNetworkName = "Network 3"	2025-03-30_035f944d1cebf48654f58575478c54e9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\6e-d4-8c-f1-46-39	2025-03-30_035f944d1cebf48654f58575478c54e9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\6e-d4-8c-f1-46-39\WpadDecisionReason = "1"	2025-03-30_035f944d1cebf48654f58575478c54e9_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\6e-d4-8c-f1-46-39\WpadDecisionTime = 405831dd39a1db01	2025-03-30_035f944d1cebf48654f58575478c54e9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\6e-d4-8c-f1-46-39\WpadDecision = "0"	2025-03-30_035f944d1cebf48654f58575478c54e9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-03-30_035f944d1cebf48654f58575478c54e9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-03-30_035f944d1cebf48654f58575478c54e9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6B141442-7616-4C21-908A-1F9D7B581A19}	2025-03-30_035f944d1cebf48654f58575478c54e9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6B141442-7616-4C21-908A-1F9D7B581A19}\6e-d4-8c-f1-46-39	2025-03-30_035f944d1cebf48654f58575478c54e9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-03-30_035f944d1cebf48654f58575478c54e9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-03-30_035f944d1cebf48654f58575478c54e9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6B141442-7616-4C21-908A-1F9D7B581A19}\WpadDecisionReason = "1"	2025-03-30_035f944d1cebf48654f58575478c54e9_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6B141442-7616-4C21-908A-1F9D7B581A19}\WpadDecisionTime = 405831dd39a1db01	2025-03-30_035f944d1cebf48654f58575478c54e9_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00bb000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-03-30_035f944d1cebf48654f58575478c54e9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-03-30_035f944d1cebf48654f58575478c54e9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-03-30_035f944d1cebf48654f58575478c54e9_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-03-30_035f944d1cebf48654f58575478c54e9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-03-30_035f944d1cebf48654f58575478c54e9_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-03-30_035f944d1cebf48654f58575478c54e9_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-03-30_035f944d1cebf48654f58575478c54e9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6B141442-7616-4C21-908A-1F9D7B581A19}\WpadDecision = "0"	2025-03-30_035f944d1cebf48654f58575478c54e9_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-03-30_035f944d1cebf48654f58575478c54e9_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-03-30_035f944d1cebf48654f58575478c54e9_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-03-30_035f944d1cebf48654f58575478c54e9_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1916
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1540

C:\Users\Admin\AppData\Local\Temp\2025-03-30_035f944d1cebf48654f58575478c54e9_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-03-30_035f944d1cebf48654f58575478c54e9_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2300

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

Loading Replay Monitor...

Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
4c32f3340a27098337c1c39d2ded6d79

SHA1
ac6211738bc73cbedead878e0c2692b115ad449c

SHA256
3428aeb74e2888611e466f87ad21f70a1a22230af659d8eb4c61a74415c2f406

SHA512
8c712a7f4a74c7c8c708c28c46d28470728005b31062ecb4ac215b8c2a2e43b07e0795af3af826a906d451c02892b45b9f60d0dec2eb892fedb2b760df61ea6b

Download Submit

Analysis

Sharing