wannacry | 1099d916868cc70b98d841bdafb93676ea8415fed2108581d5ad601f0ed5bfaa

General

Target

2024-11-22_11589df42b5a4d4644c998de8a257583_wannacry.exe
Size

5.0MB
MD5

11589df42b5a4d4644c998de8a257583
SHA1

0b773d11135d11edf3983a72e0a6e92b24a98ba7
SHA256

1099d916868cc70b98d841bdafb93676ea8415fed2108581d5ad601f0ed5bfaa
SHA512

b78fbb624735069769e4776ac77531fdef5f43c6b0f2db7537a8c07410e4a2da3fa445808cedd9942b9bbad9ec5dbd9dfe6acd266d98fa5b164dcf0789abc113
SSDEEP

24576:QbLguriIfEcQdIBrYbcMNgef0QeQjG/D8kIqRYoAdNLKz6626M+vbOSSqT:QnpENbcBVQej/1INRx+TSqT

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 (3330) 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

3324 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
3324	tasksche.exe

Drops file in System32 directory 4 IoCs

Processes:

2024-11-22_11589df42b5a4d4644c998de8a257583_wannacry.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	2024-11-22_11589df42b5a4d4644c998de8a257583_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	2024-11-22_11589df42b5a4d4644c998de8a257583_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	2024-11-22_11589df42b5a4d4644c998de8a257583_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	2024-11-22_11589df42b5a4d4644c998de8a257583_wannacry.exe

Drops file in Windows directory 3 IoCs

Processes:

2024-11-22_11589df42b5a4d4644c998de8a257583_wannacry.exetasksche.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	2024-11-22_11589df42b5a4d4644c998de8a257583_wannacry.exe
File created	C:\Windows\__tmp_rar_sfx_access_check_240621250	tasksche.exe
File created	C:\Windows\eee.exe	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:

tasksche.exe2024-11-22_11589df42b5a4d4644c998de8a257583_wannacry.exe2024-11-22_11589df42b5a4d4644c998de8a257583_wannacry.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tasksche.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-22_11589df42b5a4d4644c998de8a257583_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-22_11589df42b5a4d4644c998de8a257583_wannacry.exe

Modifies data under HKEY_USERS 15 IoCs

Processes:

2024-11-22_11589df42b5a4d4644c998de8a257583_wannacry.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-11-22_11589df42b5a4d4644c998de8a257583_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	2024-11-22_11589df42b5a4d4644c998de8a257583_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion	2024-11-22_11589df42b5a4d4644c998de8a257583_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P	2024-11-22_11589df42b5a4d4644c998de8a257583_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-11-22_11589df42b5a4d4644c998de8a257583_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-11-22_11589df42b5a4d4644c998de8a257583_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-22_11589df42b5a4d4644c998de8a257583_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-11-22_11589df42b5a4d4644c998de8a257583_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-11-22_11589df42b5a4d4644c998de8a257583_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-11-22_11589df42b5a4d4644c998de8a257583_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-11-22_11589df42b5a4d4644c998de8a257583_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P\History	2024-11-22_11589df42b5a4d4644c998de8a257583_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft	2024-11-22_11589df42b5a4d4644c998de8a257583_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-11-22_11589df42b5a4d4644c998de8a257583_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows	2024-11-22_11589df42b5a4d4644c998de8a257583_wannacry.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-11-22_11589df42b5a4d4644c998de8a257583_wannacry.exe

description	pid	process	target process
PID 3252 wrote to memory of 3324	3252	2024-11-22_11589df42b5a4d4644c998de8a257583_wannacry.exe	tasksche.exe
PID 3252 wrote to memory of 3324	3252	2024-11-22_11589df42b5a4d4644c998de8a257583_wannacry.exe	tasksche.exe
PID 3252 wrote to memory of 3324	3252	2024-11-22_11589df42b5a4d4644c998de8a257583_wannacry.exe	tasksche.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-22_11589df42b5a4d4644c998de8a257583_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-22_11589df42b5a4d4644c998de8a257583_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3252
- 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:3324

C:\Users\Admin\AppData\Local\Temp\2024-11-22_11589df42b5a4d4644c998de8a257583_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-22_11589df42b5a4d4644c998de8a257583_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2468

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
ca0bdd6a406903f62507e728244927d1

SHA1
7fdde06de5b6cd21c9acda654da723f6ffdb2fb7

SHA256
7262e02913e7361aaf6952ed1a63a29cd44193243c06488e3e15cad2564ec12e

SHA512
97048ae8a642924043d9e14bebd0896958dd942df61c459c07221b4efd9a3a7aa5cf45b97c3ea54aa64ab93b49093593d4cc41acf823eae2bb5e0fc8e3f5e31e

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads