wannacry | 7eb068ba4fb34d27238b7dcc03c0b7bce26395ab5dc99c1d02a771e198767cad

General

Target

2025-01-16_012c03a6868fa67384061590ded150f9_wannacry.exe
Size

5.0MB
MD5

012c03a6868fa67384061590ded150f9
SHA1

2b27731fea98bb88070ee090aa1a23743532bf0f
SHA256

7eb068ba4fb34d27238b7dcc03c0b7bce26395ab5dc99c1d02a771e198767cad
SHA512

9215b4383bffb33ebe430c5a68eb35ae18dc1398fbf4b31fe49dd0539c984490484acda81b2c374a93b481bec450a5ddbea84bd54860c987e6f5e9e6f8194ab5
SSDEEP

49152:QnpEjbcBVWNRx+TSqTdX1HkQo6SAARdhnv:QpUoBaRxcSUDk36SAEdhv

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 (3271) 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
864	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 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	2025-01-16_012c03a6868fa67384061590ded150f9_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	2025-01-16_012c03a6868fa67384061590ded150f9_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	2025-01-16_012c03a6868fa67384061590ded150f9_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	2025-01-16_012c03a6868fa67384061590ded150f9_wannacry.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\__tmp_rar_sfx_access_check_240620890	tasksche.exe
File created	C:\Windows\eee.exe	tasksche.exe
File created	C:\WINDOWS\tasksche.exe	2025-01-16_012c03a6868fa67384061590ded150f9_wannacry.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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	2025-01-16_012c03a6868fa67384061590ded150f9_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-16_012c03a6868fa67384061590ded150f9_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tasksche.exe

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P	2025-01-16_012c03a6868fa67384061590ded150f9_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-01-16_012c03a6868fa67384061590ded150f9_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-01-16_012c03a6868fa67384061590ded150f9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2025-01-16_012c03a6868fa67384061590ded150f9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2025-01-16_012c03a6868fa67384061590ded150f9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-16_012c03a6868fa67384061590ded150f9_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-01-16_012c03a6868fa67384061590ded150f9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-01-16_012c03a6868fa67384061590ded150f9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft	2025-01-16_012c03a6868fa67384061590ded150f9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows	2025-01-16_012c03a6868fa67384061590ded150f9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion	2025-01-16_012c03a6868fa67384061590ded150f9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	2025-01-16_012c03a6868fa67384061590ded150f9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2025-01-16_012c03a6868fa67384061590ded150f9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2025-01-16_012c03a6868fa67384061590ded150f9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P\History	2025-01-16_012c03a6868fa67384061590ded150f9_wannacry.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 8 wrote to memory of 864	8	2025-01-16_012c03a6868fa67384061590ded150f9_wannacry.exe	85
PID 8 wrote to memory of 864	8	2025-01-16_012c03a6868fa67384061590ded150f9_wannacry.exe	85
PID 8 wrote to memory of 864	8	2025-01-16_012c03a6868fa67384061590ded150f9_wannacry.exe	85

C:\Users\Admin\AppData\Local\Temp\2025-01-16_012c03a6868fa67384061590ded150f9_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-16_012c03a6868fa67384061590ded150f9_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:8
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  PID:864

C:\Users\Admin\AppData\Local\Temp\2025-01-16_012c03a6868fa67384061590ded150f9_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-01-16_012c03a6868fa67384061590ded150f9_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:3504

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
2.0MB

MD5
c9ce6d2b0232daae852c37a154f1d965

SHA1
a62ee7da769b716cefb212b89a13510e55821f94

SHA256
5b7117480dd572f176d1319185e2117a49de3d9a13bb85365c12d83f18c32bb3

SHA512
c669cbfb29b7ea16dd51b22300e36c2f659f28e698ef2161b78089101acc629173f4945fb9bc0e50afbd0ca77fe4c7f6d215a1c0205786028e05d280468708b4

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Analysis

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