wannacry | 74d43d1527c2d08b659a8733601eb2794c7e13c1bf83ec057b1d9931458ab168

General

Target

2025-01-20_dea3dc5bd274c47df5b07a61ea83c115_wannacry.exe
Size

3.6MB
MD5

dea3dc5bd274c47df5b07a61ea83c115
SHA1

2de0167aa2456e506a887174f4fb8518ea201eaa
SHA256

74d43d1527c2d08b659a8733601eb2794c7e13c1bf83ec057b1d9931458ab168
SHA512

58ed310b3f936da7a99ec6e294a92a1d2364fb1265f6e70e8854f72ba4bf913f8be5854eee3fdce5dc696ef6b162a34839b40e0b169b1331a7ac82dea7f9476f
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhiwd10lWUaIlf85haAj/K2A:yDqPoBhz1aRxcSUDk36SAEdhEnfKhhrO

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 (3260) 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
2160	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	2025-01-20_dea3dc5bd274c47df5b07a61ea83c115_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-01-20_dea3dc5bd274c47df5b07a61ea83c115_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	2025-01-20_dea3dc5bd274c47df5b07a61ea83c115_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-20_dea3dc5bd274c47df5b07a61ea83c115_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	2025-01-20_dea3dc5bd274c47df5b07a61ea83c115_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E9384D65-AB08-4757-A8C9-11D9498AE428}\WpadDecisionReason = "1"	2025-01-20_dea3dc5bd274c47df5b07a61ea83c115_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E9384D65-AB08-4757-A8C9-11D9498AE428}\d6-e1-6f-32-12-58	2025-01-20_dea3dc5bd274c47df5b07a61ea83c115_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d6-e1-6f-32-12-58\WpadDecision = "0"	2025-01-20_dea3dc5bd274c47df5b07a61ea83c115_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-20_dea3dc5bd274c47df5b07a61ea83c115_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-01-20_dea3dc5bd274c47df5b07a61ea83c115_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-01-20_dea3dc5bd274c47df5b07a61ea83c115_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E9384D65-AB08-4757-A8C9-11D9498AE428}\WpadNetworkName = "Network 3"	2025-01-20_dea3dc5bd274c47df5b07a61ea83c115_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d6-e1-6f-32-12-58	2025-01-20_dea3dc5bd274c47df5b07a61ea83c115_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-20_dea3dc5bd274c47df5b07a61ea83c115_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-01-20_dea3dc5bd274c47df5b07a61ea83c115_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-01-20_dea3dc5bd274c47df5b07a61ea83c115_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E9384D65-AB08-4757-A8C9-11D9498AE428}	2025-01-20_dea3dc5bd274c47df5b07a61ea83c115_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-01-20_dea3dc5bd274c47df5b07a61ea83c115_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-01-20_dea3dc5bd274c47df5b07a61ea83c115_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f007a000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-20_dea3dc5bd274c47df5b07a61ea83c115_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E9384D65-AB08-4757-A8C9-11D9498AE428}\WpadDecisionTime = b047a419e46adb01	2025-01-20_dea3dc5bd274c47df5b07a61ea83c115_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-01-20_dea3dc5bd274c47df5b07a61ea83c115_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-20_dea3dc5bd274c47df5b07a61ea83c115_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-01-20_dea3dc5bd274c47df5b07a61ea83c115_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-01-20_dea3dc5bd274c47df5b07a61ea83c115_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E9384D65-AB08-4757-A8C9-11D9498AE428}\WpadDecision = "0"	2025-01-20_dea3dc5bd274c47df5b07a61ea83c115_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d6-e1-6f-32-12-58\WpadDecisionReason = "1"	2025-01-20_dea3dc5bd274c47df5b07a61ea83c115_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d6-e1-6f-32-12-58\WpadDecisionTime = b047a419e46adb01	2025-01-20_dea3dc5bd274c47df5b07a61ea83c115_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-01-20_dea3dc5bd274c47df5b07a61ea83c115_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-20_dea3dc5bd274c47df5b07a61ea83c115_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1628
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2160

C:\Users\Admin\AppData\Local\Temp\2025-01-20_dea3dc5bd274c47df5b07a61ea83c115_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-01-20_dea3dc5bd274c47df5b07a61ea83c115_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1224

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
609f9f0f5a0fd3252761ffbc73695450

SHA1
716c011381ce6c69d871b27222bf6acbb43f1079

SHA256
baa09e7a379df50514103b34640d1f39658ff2698dbef3f8fb7057d91d2fff1a

SHA512
195f2dda68f8dfab2bc9c6f225584350ef5869ac61438bcde18d067fea9f592cd179cc2810e51d71975c12767fe8c1bac038755042c28cf439dc3253b8486de3

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Analysis

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