wannacry | 9b87e45a39c7f20c6215c463efa570611affcab9934b209e8ea1c4a395122f97

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
17-12-2024 10:50

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General

Target

2024-12-17_a77a67c3643d711bf989212b1dd13da9_wannacry.exe
Size

3.6MB
MD5

a77a67c3643d711bf989212b1dd13da9
SHA1

bc72e32eb160b8c85d019555c545ecb558de4079
SHA256

9b87e45a39c7f20c6215c463efa570611affcab9934b209e8ea1c4a395122f97
SHA512

f1c6963b816b5593b6f491bb0b493474562a7dd255549b2cd6a18ef75fa555f5930ed93dbbae17cfb9f93062da85b8c496ad6384a464c71af51c19fe92a4328a
SSDEEP

49152:XnAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnv2lAHI:XDqPoBhz1aRxcSUDk36SAEdhv22HI

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 (3276) 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
4328	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	2024-12-17_a77a67c3643d711bf989212b1dd13da9_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	2024-12-17_a77a67c3643d711bf989212b1dd13da9_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-17_a77a67c3643d711bf989212b1dd13da9_wannacry.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-12-17_a77a67c3643d711bf989212b1dd13da9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-12-17_a77a67c3643d711bf989212b1dd13da9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-12-17_a77a67c3643d711bf989212b1dd13da9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-12-17_a77a67c3643d711bf989212b1dd13da9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-12-17_a77a67c3643d711bf989212b1dd13da9_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-17_a77a67c3643d711bf989212b1dd13da9_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-17_a77a67c3643d711bf989212b1dd13da9_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:3596
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:4328

C:\Users\Admin\AppData\Local\Temp\2024-12-17_a77a67c3643d711bf989212b1dd13da9_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-12-17_a77a67c3643d711bf989212b1dd13da9_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:3948

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

Replay Monitor

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
de988428ff75d277180deadd17cf1aca

SHA1
428e74a28dd85014078585ca55d07dc66f306473

SHA256
bf42abc7c91666ab3688a24f8bbb5196f2e25aea34e9f34da94201ab790bee8f

SHA512
7e28d2db8194486980356ba4dfcbac9b748a3a13eb6af3962f60c7bae5b64d7fbe1cf0f7f330826badf25c701a7943b1ed100bdeeb9db4c3a2b1849e16679a91

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