wannacry | 14a1a7df1a277c16701cb0aac74dbdacb787650bd6cccab01374b962c405cdd0

General

Target

2025-03-27_0082e2b290ff79cccd701a3a7522f734_wannacry.exe
Size

3.6MB
MD5

0082e2b290ff79cccd701a3a7522f734
SHA1

a25ad478bb3ec8bbb4d00634957ceba26f2090f6
SHA256

14a1a7df1a277c16701cb0aac74dbdacb787650bd6cccab01374b962c405cdd0
SHA512

f01fbd1bb1181259af76904b5c3a2cb0df948253a7a9d7a27ef078ee80884ccc99b50434a6b5cc1f967e12a6f455a423536baace2793df0d7c31a3f3fecd940b
SSDEEP

49152:2nAQqMSPbcBVQej/1INR2SqTdX1HkQH0AMEcayVnI:yDqPoBhz1aR2SUDkD5/VnI

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 (3323) 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
2464	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	2025-03-27_0082e2b290ff79cccd701a3a7522f734_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-03-27_0082e2b290ff79cccd701a3a7522f734_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	2025-03-27_0082e2b290ff79cccd701a3a7522f734_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-03-27_0082e2b290ff79cccd701a3a7522f734_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\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-03-27_0082e2b290ff79cccd701a3a7522f734_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-03-27_0082e2b290ff79cccd701a3a7522f734_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-03-27_0082e2b290ff79cccd701a3a7522f734_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-03-27_0082e2b290ff79cccd701a3a7522f734_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-03-27_0082e2b290ff79cccd701a3a7522f734_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{37C39D22-3BBC-4EF5-801F-11174BB3BE6C}	2025-03-27_0082e2b290ff79cccd701a3a7522f734_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{37C39D22-3BBC-4EF5-801F-11174BB3BE6C}\WpadDecisionReason = "1"	2025-03-27_0082e2b290ff79cccd701a3a7522f734_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\22-ec-f3-12-34-e2\WpadDecisionReason = "1"	2025-03-27_0082e2b290ff79cccd701a3a7522f734_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-03-27_0082e2b290ff79cccd701a3a7522f734_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{37C39D22-3BBC-4EF5-801F-11174BB3BE6C}\WpadDecision = "0"	2025-03-27_0082e2b290ff79cccd701a3a7522f734_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\22-ec-f3-12-34-e2	2025-03-27_0082e2b290ff79cccd701a3a7522f734_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\22-ec-f3-12-34-e2\WpadDecision = "0"	2025-03-27_0082e2b290ff79cccd701a3a7522f734_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-03-27_0082e2b290ff79cccd701a3a7522f734_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-03-27_0082e2b290ff79cccd701a3a7522f734_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-03-27_0082e2b290ff79cccd701a3a7522f734_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-03-27_0082e2b290ff79cccd701a3a7522f734_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{37C39D22-3BBC-4EF5-801F-11174BB3BE6C}\WpadDecisionTime = 5032437fd09edb01	2025-03-27_0082e2b290ff79cccd701a3a7522f734_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-03-27_0082e2b290ff79cccd701a3a7522f734_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-03-27_0082e2b290ff79cccd701a3a7522f734_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-03-27_0082e2b290ff79cccd701a3a7522f734_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0171000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-03-27_0082e2b290ff79cccd701a3a7522f734_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{37C39D22-3BBC-4EF5-801F-11174BB3BE6C}\WpadNetworkName = "Network 3"	2025-03-27_0082e2b290ff79cccd701a3a7522f734_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{37C39D22-3BBC-4EF5-801F-11174BB3BE6C}\22-ec-f3-12-34-e2	2025-03-27_0082e2b290ff79cccd701a3a7522f734_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\22-ec-f3-12-34-e2\WpadDecisionTime = 5032437fd09edb01	2025-03-27_0082e2b290ff79cccd701a3a7522f734_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-03-27_0082e2b290ff79cccd701a3a7522f734_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-03-27_0082e2b290ff79cccd701a3a7522f734_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1664
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2464

C:\Users\Admin\AppData\Local\Temp\2025-03-27_0082e2b290ff79cccd701a3a7522f734_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-03-27_0082e2b290ff79cccd701a3a7522f734_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2332

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
848bf9a44139c32ff097793c28f94850

SHA1
54bdbaa9f1d4ba345c505f6e3342d0474aad793c

SHA256
1c18f7b8b3e7485592e6a1c4d4c69145ad649c51c1b44cf887c3566f6e49792d

SHA512
c450814dca450d6ea72f00b20d3fafdac26f9731b1b65ce62498611d57b5521eb41209642e6ba79a58f28c9c6e7b6809098dbca420bd8d501354187e14f83e92

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