wannacry | 520ee8041c541271f208c206215851a4a0bc74c96f9a09c150389362cbacdb24

Analysis

max time kernel
150s
max time network
157s
platform
windows11-21h2_x64
resource
win11-20250410-en
resource tags

arch:x64arch:x86image:win11-20250410-enlocale:en-usos:windows11-21h2-x64system
submitted
21/04/2025, 11:39

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General

Target

2025-04-21_654c77eabb35b39d942e5cbce63bfc66_elex_wannacry.exe
Size

3.6MB
MD5

654c77eabb35b39d942e5cbce63bfc66
SHA1

82c99a1342c367b0583c518a2987d550a50b9ca6
SHA256

520ee8041c541271f208c206215851a4a0bc74c96f9a09c150389362cbacdb24
SHA512

c7899800533a4ad0b68fec8f5ea469031d28d1cca4ba5f5a59278442ac19659b12c4a9c1231f4ac7382511e405cb70e9c0e7ef7b1a30f73cdf0d7331158d6e50
SSDEEP

98304:yDqPoB2z1aRxcSUDk36SAEdhvxWa9C593R8yAVp2:yDqP11Cxcxk3ZAEUa0zR8yc4

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 (3293) 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
5336	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	2025-04-21_654c77eabb35b39d942e5cbce63bfc66_elex_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	2025-04-21_654c77eabb35b39d942e5cbce63bfc66_elex_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-04-21_654c77eabb35b39d942e5cbce63bfc66_elex_wannacry.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-04-21_654c77eabb35b39d942e5cbce63bfc66_elex_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2025-04-21_654c77eabb35b39d942e5cbce63bfc66_elex_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2025-04-21_654c77eabb35b39d942e5cbce63bfc66_elex_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2025-04-21_654c77eabb35b39d942e5cbce63bfc66_elex_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2025-04-21_654c77eabb35b39d942e5cbce63bfc66_elex_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-04-21_654c77eabb35b39d942e5cbce63bfc66_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-04-21_654c77eabb35b39d942e5cbce63bfc66_elex_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2836
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:5336

C:\Users\Admin\AppData\Local\Temp\2025-04-21_654c77eabb35b39d942e5cbce63bfc66_elex_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-04-21_654c77eabb35b39d942e5cbce63bfc66_elex_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:4840

Network

MITRE ATT&CK Enterprise v16

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
deb98080a489989d6e5db3a9faf496d1

SHA1
70fb4264d4fefe40ed70f3bdd609e11b84583b85

SHA256
54c7053f0dd9af0fde6e0967412813fab7b091bf79dabe03308602f6db05b1b4

SHA512
27b452f5c6c25e3d2ef27add07e14aa74bd88cb206fea134d9abafbdea5ae43c4b7830bbf4cd06565c2821c1d7b6db003e04ba0544133e4e0113612157f6abf4

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