wannacry | 36d7d4ba7f1a55b2c5938a903ffb6c12bca7ebdfe0d294d4099b41f6abc96d1d

General

Target

2024-09-25_bd0cbbfe247028dddc14f362e6b3375e_wannacry.exe
Size

5.0MB
MD5

bd0cbbfe247028dddc14f362e6b3375e
SHA1

c124e7cebc01c60b9c5638ef14d88e6d31c19cbf
SHA256

36d7d4ba7f1a55b2c5938a903ffb6c12bca7ebdfe0d294d4099b41f6abc96d1d
SHA512

7359bac0afc719e0a50d91142481248323c648a0df4279531829c0b66d62a8f7e1e6b416607b28cc2b677bec3ac55df17abb28a6010aaad8c5275b7e5d76bfb2
SSDEEP

49152:8nQQtKUacBVQej/1INRx+TSqTdX1HkQo6SAA:czPfBhz1aRxcSUDk36SA

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3241) 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
2588	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	2024-09-25_bd0cbbfe247028dddc14f362e6b3375e_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-25_bd0cbbfe247028dddc14f362e6b3375e_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	2024-09-25_bd0cbbfe247028dddc14f362e6b3375e_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-25_bd0cbbfe247028dddc14f362e6b3375e_wannacry.exe

Modifies data under HKEY_USERS 21 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-09-25_bd0cbbfe247028dddc14f362e6b3375e_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{953238C1-3374-47FD-ABFA-F1138ADEC9E6}\WpadNetworkName = "Network 3"	2024-09-25_bd0cbbfe247028dddc14f362e6b3375e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-9b-24-b5-e1-c8\WpadDecisionReason = "1"	2024-09-25_bd0cbbfe247028dddc14f362e6b3375e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-25_bd0cbbfe247028dddc14f362e6b3375e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-09-25_bd0cbbfe247028dddc14f362e6b3375e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-9b-24-b5-e1-c8\WpadDecisionTime = c0751092310fdb01	2024-09-25_bd0cbbfe247028dddc14f362e6b3375e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{953238C1-3374-47FD-ABFA-F1138ADEC9E6}\WpadDecisionTime = c0751092310fdb01	2024-09-25_bd0cbbfe247028dddc14f362e6b3375e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{953238C1-3374-47FD-ABFA-F1138ADEC9E6}\WpadDecision = "0"	2024-09-25_bd0cbbfe247028dddc14f362e6b3375e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-25_bd0cbbfe247028dddc14f362e6b3375e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-09-25_bd0cbbfe247028dddc14f362e6b3375e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-09-25_bd0cbbfe247028dddc14f362e6b3375e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-9b-24-b5-e1-c8	2024-09-25_bd0cbbfe247028dddc14f362e6b3375e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{953238C1-3374-47FD-ABFA-F1138ADEC9E6}\96-9b-24-b5-e1-c8	2024-09-25_bd0cbbfe247028dddc14f362e6b3375e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-25_bd0cbbfe247028dddc14f362e6b3375e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-09-25_bd0cbbfe247028dddc14f362e6b3375e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0107000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-25_bd0cbbfe247028dddc14f362e6b3375e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{953238C1-3374-47FD-ABFA-F1138ADEC9E6}	2024-09-25_bd0cbbfe247028dddc14f362e6b3375e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{953238C1-3374-47FD-ABFA-F1138ADEC9E6}\WpadDecisionReason = "1"	2024-09-25_bd0cbbfe247028dddc14f362e6b3375e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-9b-24-b5-e1-c8\WpadDecision = "0"	2024-09-25_bd0cbbfe247028dddc14f362e6b3375e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-25_bd0cbbfe247028dddc14f362e6b3375e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-25_bd0cbbfe247028dddc14f362e6b3375e_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-25_bd0cbbfe247028dddc14f362e6b3375e_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-25_bd0cbbfe247028dddc14f362e6b3375e_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2792
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2588

C:\Users\Admin\AppData\Local\Temp\2024-09-25_bd0cbbfe247028dddc14f362e6b3375e_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-25_bd0cbbfe247028dddc14f362e6b3375e_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2212

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
52b7fc89b5485fc8a8c5386ab84aa7bf

SHA1
416074e7116aae300d619c8051083f82ae564499

SHA256
e7a6b69d24694cff3e6a7c02ddae1b6dce5b6814f66605fa34ec26cf98312aea

SHA512
3ce3086f5e1c5ffe830992d7a1356f9a1bb78dcee00f8516a2739b108b43f1d7367cc854d9a6a4ee6b19ad4e2c27fce2080fc3bbdce8ffc65a149f19b107adaa

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