wannacry | a5ffdb6d6251b69c518c7e4fa71feeb9b2efadec74d1f4c578890536eec1124d

General

Target

2024-12-12_7bb44ce91d465a2a5295f9168e0b6970_wannacry.exe
Size

3.6MB
MD5

7bb44ce91d465a2a5295f9168e0b6970
SHA1

50678187f149f1e46a738a166c0026ac05bc4a0a
SHA256

a5ffdb6d6251b69c518c7e4fa71feeb9b2efadec74d1f4c578890536eec1124d
SHA512

71c071a8cf2398c4a1fc34fa9c447b893dfe59465f15d392e3724a58bf8bb835aede6e72431e024bb610daa70a819aa65b8107f4301757ed9b75a89d1e972557
SSDEEP

49152:2nAQqMSPbcBVJNRx+TSqTdX1HkQo6SAARdhnvxJM0H9:yDqPoBJRxcSUDk36SAEdhvxWa9

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 (3298) 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
2236	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	2024-12-12_7bb44ce91d465a2a5295f9168e0b6970_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-12-12_7bb44ce91d465a2a5295f9168e0b6970_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	2024-12-12_7bb44ce91d465a2a5295f9168e0b6970_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-12_7bb44ce91d465a2a5295f9168e0b6970_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	2024-12-12_7bb44ce91d465a2a5295f9168e0b6970_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-12-12_7bb44ce91d465a2a5295f9168e0b6970_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\c6-f9-47-ac-63-b9	2024-12-12_7bb44ce91d465a2a5295f9168e0b6970_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\c6-f9-47-ac-63-b9\WpadDecisionTime = b0a186a37d4cdb01	2024-12-12_7bb44ce91d465a2a5295f9168e0b6970_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C9355E71-6C69-42EC-BC66-1A229BB74F95}\WpadDecisionTime = b0a186a37d4cdb01	2024-12-12_7bb44ce91d465a2a5295f9168e0b6970_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-12_7bb44ce91d465a2a5295f9168e0b6970_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-12-12_7bb44ce91d465a2a5295f9168e0b6970_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-12_7bb44ce91d465a2a5295f9168e0b6970_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-12-12_7bb44ce91d465a2a5295f9168e0b6970_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-12-12_7bb44ce91d465a2a5295f9168e0b6970_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-12-12_7bb44ce91d465a2a5295f9168e0b6970_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-12-12_7bb44ce91d465a2a5295f9168e0b6970_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C9355E71-6C69-42EC-BC66-1A229BB74F95}\WpadNetworkName = "Network 3"	2024-12-12_7bb44ce91d465a2a5295f9168e0b6970_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\c6-f9-47-ac-63-b9\WpadDecision = "0"	2024-12-12_7bb44ce91d465a2a5295f9168e0b6970_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-12-12_7bb44ce91d465a2a5295f9168e0b6970_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-12-12_7bb44ce91d465a2a5295f9168e0b6970_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00d5000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-12_7bb44ce91d465a2a5295f9168e0b6970_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C9355E71-6C69-42EC-BC66-1A229BB74F95}\WpadDecision = "0"	2024-12-12_7bb44ce91d465a2a5295f9168e0b6970_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\c6-f9-47-ac-63-b9\WpadDecisionReason = "1"	2024-12-12_7bb44ce91d465a2a5295f9168e0b6970_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-12_7bb44ce91d465a2a5295f9168e0b6970_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-12-12_7bb44ce91d465a2a5295f9168e0b6970_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C9355E71-6C69-42EC-BC66-1A229BB74F95}	2024-12-12_7bb44ce91d465a2a5295f9168e0b6970_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C9355E71-6C69-42EC-BC66-1A229BB74F95}\WpadDecisionReason = "1"	2024-12-12_7bb44ce91d465a2a5295f9168e0b6970_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C9355E71-6C69-42EC-BC66-1A229BB74F95}\c6-f9-47-ac-63-b9	2024-12-12_7bb44ce91d465a2a5295f9168e0b6970_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-12_7bb44ce91d465a2a5295f9168e0b6970_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-12_7bb44ce91d465a2a5295f9168e0b6970_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2512
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2236

C:\Users\Admin\AppData\Local\Temp\2024-12-12_7bb44ce91d465a2a5295f9168e0b6970_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-12-12_7bb44ce91d465a2a5295f9168e0b6970_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2068

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
5c2a5c8233d0013014a1eec1d2ce47cc

SHA1
4f6abf67c5b9ea8f2ba053a6276095ecf3329bc9

SHA256
ffae568b8df0e4ade5db934ac902d742f92fe40426306970d8b2080516ab327e

SHA512
6684911c57a8e861c03d569b1c6ed4a18efb74595cd8706195b1aae583d19d05270a597234637a0abb74f34df5842b66dd50803c3365b78d57bc94a8e3145c9d

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