wannacry | ce87862629dc6205e829620806edab7daccfb5bf4b007f5f0d9906d2ff464aa3

General

Target

2024-11-16_d8fc95d63a5d4e8a413e187321561f16_wannacry.exe
Size

5.0MB
MD5

d8fc95d63a5d4e8a413e187321561f16
SHA1

c7e9be664f768d073e36964d0807ed3936fbbb24
SHA256

ce87862629dc6205e829620806edab7daccfb5bf4b007f5f0d9906d2ff464aa3
SHA512

c45a21f21b0f07e2409fd8d9df79f8090803f4499746893c2447a4a0f29a5c96a3c30acb1a0f511c1cada785d87cf6382378ebb84e37cf59b4d1f362e7e98c4e
SSDEEP

49152:QnpEfPbcBVQej/1INRx+TSqTdX1HkQo6SAARdh:QpUoBhz1aRxcSUDk36SAEdh

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 (3300) 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

Processes:

tasksche.exe

pid process

4312 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

pid	process
4312	tasksche.exe

Drops file in System32 directory 4 IoCs

Processes:

2024-11-16_d8fc95d63a5d4e8a413e187321561f16_wannacry.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	2024-11-16_d8fc95d63a5d4e8a413e187321561f16_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	2024-11-16_d8fc95d63a5d4e8a413e187321561f16_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	2024-11-16_d8fc95d63a5d4e8a413e187321561f16_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	2024-11-16_d8fc95d63a5d4e8a413e187321561f16_wannacry.exe

Drops file in Windows directory 3 IoCs

Processes:

tasksche.exe2024-11-16_d8fc95d63a5d4e8a413e187321561f16_wannacry.exe

description	ioc	process
File created	C:\Windows\eee.exe	tasksche.exe
File created	C:\WINDOWS\tasksche.exe	2024-11-16_d8fc95d63a5d4e8a413e187321561f16_wannacry.exe
File created	C:\Windows\__tmp_rar_sfx_access_check_240627437	tasksche.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

Processes:

2024-11-16_d8fc95d63a5d4e8a413e187321561f16_wannacry.exe2024-11-16_d8fc95d63a5d4e8a413e187321561f16_wannacry.exetasksche.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-16_d8fc95d63a5d4e8a413e187321561f16_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-16_d8fc95d63a5d4e8a413e187321561f16_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tasksche.exe

Modifies data under HKEY_USERS 15 IoCs

Processes:

2024-11-16_d8fc95d63a5d4e8a413e187321561f16_wannacry.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-11-16_d8fc95d63a5d4e8a413e187321561f16_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-11-16_d8fc95d63a5d4e8a413e187321561f16_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-11-16_d8fc95d63a5d4e8a413e187321561f16_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P\History	2024-11-16_d8fc95d63a5d4e8a413e187321561f16_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	2024-11-16_d8fc95d63a5d4e8a413e187321561f16_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft	2024-11-16_d8fc95d63a5d4e8a413e187321561f16_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows	2024-11-16_d8fc95d63a5d4e8a413e187321561f16_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion	2024-11-16_d8fc95d63a5d4e8a413e187321561f16_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-11-16_d8fc95d63a5d4e8a413e187321561f16_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-11-16_d8fc95d63a5d4e8a413e187321561f16_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-16_d8fc95d63a5d4e8a413e187321561f16_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P	2024-11-16_d8fc95d63a5d4e8a413e187321561f16_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-11-16_d8fc95d63a5d4e8a413e187321561f16_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-11-16_d8fc95d63a5d4e8a413e187321561f16_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-11-16_d8fc95d63a5d4e8a413e187321561f16_wannacry.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-11-16_d8fc95d63a5d4e8a413e187321561f16_wannacry.exe

description	pid	process	target process
PID 5008 wrote to memory of 4312	5008	2024-11-16_d8fc95d63a5d4e8a413e187321561f16_wannacry.exe	tasksche.exe
PID 5008 wrote to memory of 4312	5008	2024-11-16_d8fc95d63a5d4e8a413e187321561f16_wannacry.exe	tasksche.exe
PID 5008 wrote to memory of 4312	5008	2024-11-16_d8fc95d63a5d4e8a413e187321561f16_wannacry.exe	tasksche.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-16_d8fc95d63a5d4e8a413e187321561f16_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-16_d8fc95d63a5d4e8a413e187321561f16_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5008
- 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:4312

C:\Users\Admin\AppData\Local\Temp\2024-11-16_d8fc95d63a5d4e8a413e187321561f16_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-16_d8fc95d63a5d4e8a413e187321561f16_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1720

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

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Downloads

C:\Windows\tasksche.exe

Filesize
2.0MB

MD5
3f3fa80dd1990eb3dec6a868e60aec5a

SHA1
ff77ba4664027c12a766519b99c42c39a86adb41

SHA256
1eccb34fb0c6ead5ed10352e02f28068f1cc135b3a11d1a351f09a145e4d6ef1

SHA512
782f7f8622953a0af416ca56b588f25ac07ec0e1440628255f8ce0ac3f6e99c3e9df21c5c854b09db8a7bd5ae45314c93e032c6ca36b173cc8dd180d16a9756c

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads