wannacry | 7f55e72e3dee26086e8ce591acbb336c1145f04733a1bd7992e25edc64153960

Analysis

max time kernel
150s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
12-10-2024 03:32

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General

Target

2024-10-12_43ab44d66d62a6062356f24cf873cfba_wannacry.exe
Size

3.6MB
MD5

43ab44d66d62a6062356f24cf873cfba
SHA1

7f3db8340c7f44cdf91b6acc3e1e39d569b45118
SHA256

7f55e72e3dee26086e8ce591acbb336c1145f04733a1bd7992e25edc64153960
SHA512

5b9cc174abf2bab917c76a2b0a1f6adeddc230c01a2d9a3e38905f79d0f7721c0dfbdea978f32a06b99c846061ebdc3c9d0965ea230a32c38c0e9c7f139ea6c0
SSDEEP

24576:2bLgddQhfdmMSirYbcMNgef0QeQjG/D8kIqRNK74G6Zwlg:2nAQqMSPbcBVQej/1NKbxlg

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3235) 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
2072	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 Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-12_43ab44d66d62a6062356f24cf873cfba_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	2024-10-12_43ab44d66d62a6062356f24cf873cfba_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-12_43ab44d66d62a6062356f24cf873cfba_wannacry.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-10-12_43ab44d66d62a6062356f24cf873cfba_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-10-12_43ab44d66d62a6062356f24cf873cfba_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-10-12_43ab44d66d62a6062356f24cf873cfba_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-12_43ab44d66d62a6062356f24cf873cfba_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-10-12_43ab44d66d62a6062356f24cf873cfba_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-12_43ab44d66d62a6062356f24cf873cfba_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_43ab44d66d62a6062356f24cf873cfba_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:4236
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2072

C:\Users\Admin\AppData\Local\Temp\2024-10-12_43ab44d66d62a6062356f24cf873cfba_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-12_43ab44d66d62a6062356f24cf873cfba_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:4148

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

T1046

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
5004b11493279472867aa5025a5686be

SHA1
751bdf4a001fc1e0d70ca741ade57e9aedb15e80

SHA256
1e29b1deed2061f62a68e7e14c8ff2ad58e7eb7e7d65343561147fe84e68acd1

SHA512
3929cb7d584014394596f58269dd43eda9664ea0e02c03aa2204bf98ed1d5c2a7ea937608d56a475c963898ba623fc176259b9ec7b93e5abb56951892b97efb5

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