wannacry | c2d6eb0a76b139b02342c1d5d75c1b744afef9052777425800bc90d1462b4f47

General

Target

2024-09-15_c2518e860b9fe614dd7a0d4ebaf1eda2_wannacry.exe
Size

5.0MB
MD5

c2518e860b9fe614dd7a0d4ebaf1eda2
SHA1

d9be161a6fb4b79f10ceafe30109a2599dbf75d0
SHA256

c2d6eb0a76b139b02342c1d5d75c1b744afef9052777425800bc90d1462b4f47
SHA512

042ab2d148e9c08bfa21e79698229ad1e609d6a9c27873dff91d03b1c8b091d56f4baa715489bd9212abc7e530fc7e12d1924fa75744abca4085c36e789bbd5f
SSDEEP

49152:XnAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnv:XDqPoBhz1aRxcSUDk36SAEdhv

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3176) 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
2808	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	2024-09-15_c2518e860b9fe614dd7a0d4ebaf1eda2_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-15_c2518e860b9fe614dd7a0d4ebaf1eda2_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	2024-09-15_c2518e860b9fe614dd7a0d4ebaf1eda2_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-15_c2518e860b9fe614dd7a0d4ebaf1eda2_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 = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00f4000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-15_c2518e860b9fe614dd7a0d4ebaf1eda2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ca-ac-b9-a0-0b-6c\WpadDecisionReason = "1"	2024-09-15_c2518e860b9fe614dd7a0d4ebaf1eda2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-09-15_c2518e860b9fe614dd7a0d4ebaf1eda2_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-15_c2518e860b9fe614dd7a0d4ebaf1eda2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-09-15_c2518e860b9fe614dd7a0d4ebaf1eda2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-09-15_c2518e860b9fe614dd7a0d4ebaf1eda2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-15_c2518e860b9fe614dd7a0d4ebaf1eda2_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EC30BDF3-C4DC-4075-A0A2-370429D0227C}\WpadDecisionTime = e0dbb2fa5207db01	2024-09-15_c2518e860b9fe614dd7a0d4ebaf1eda2_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ca-ac-b9-a0-0b-6c\WpadDecisionTime = e0dbb2fa5207db01	2024-09-15_c2518e860b9fe614dd7a0d4ebaf1eda2_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-09-15_c2518e860b9fe614dd7a0d4ebaf1eda2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EC30BDF3-C4DC-4075-A0A2-370429D0227C}	2024-09-15_c2518e860b9fe614dd7a0d4ebaf1eda2_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EC30BDF3-C4DC-4075-A0A2-370429D0227C}\WpadNetworkName = "Network 3"	2024-09-15_c2518e860b9fe614dd7a0d4ebaf1eda2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EC30BDF3-C4DC-4075-A0A2-370429D0227C}\ca-ac-b9-a0-0b-6c	2024-09-15_c2518e860b9fe614dd7a0d4ebaf1eda2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-15_c2518e860b9fe614dd7a0d4ebaf1eda2_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-15_c2518e860b9fe614dd7a0d4ebaf1eda2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-15_c2518e860b9fe614dd7a0d4ebaf1eda2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-09-15_c2518e860b9fe614dd7a0d4ebaf1eda2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EC30BDF3-C4DC-4075-A0A2-370429D0227C}\WpadDecision = "0"	2024-09-15_c2518e860b9fe614dd7a0d4ebaf1eda2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ca-ac-b9-a0-0b-6c	2024-09-15_c2518e860b9fe614dd7a0d4ebaf1eda2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ca-ac-b9-a0-0b-6c\WpadDecision = "0"	2024-09-15_c2518e860b9fe614dd7a0d4ebaf1eda2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-09-15_c2518e860b9fe614dd7a0d4ebaf1eda2_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-09-15_c2518e860b9fe614dd7a0d4ebaf1eda2_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-09-15_c2518e860b9fe614dd7a0d4ebaf1eda2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EC30BDF3-C4DC-4075-A0A2-370429D0227C}\WpadDecisionReason = "1"	2024-09-15_c2518e860b9fe614dd7a0d4ebaf1eda2_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-15_c2518e860b9fe614dd7a0d4ebaf1eda2_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-15_c2518e860b9fe614dd7a0d4ebaf1eda2_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1704
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2808

C:\Users\Admin\AppData\Local\Temp\2024-09-15_c2518e860b9fe614dd7a0d4ebaf1eda2_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-15_c2518e860b9fe614dd7a0d4ebaf1eda2_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1620

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
db536d575fb12abbf80121ae8f9b9be5

SHA1
b04983746b08445a3ed081080d26338fde45f76f

SHA256
7998dddf5f55e58945f5e747b11c2f03a14196577ece133b8587a5a5ec8c7b22

SHA512
324906ce8402dcb37bb4aff45455a95df2685df7a9d5e5648cf0d7bf4a19b141a88c6abadd1245226097bb0749a89261ae33ab77391056ce3ecf58b18e041ad7

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