wannacry | a1b7d93ca4fd64f98c6afeb85469f70caa5ddb40a86f3b8c663f13917e5f4b90

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
05-08-2024 08:05

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General

Target

2024-08-05_f9bfd6b72460c09a4c98862f491af6ad_wannacry.exe
Size

5.0MB
MD5

f9bfd6b72460c09a4c98862f491af6ad
SHA1

40091820c39f18e29e9b29b0ba544fb1b159bcf4
SHA256

a1b7d93ca4fd64f98c6afeb85469f70caa5ddb40a86f3b8c663f13917e5f4b90
SHA512

b4b361286c4df0a30d68c0649d4f9f033c70c5164c2a751d3e1ebf518a519ce442d3e1ee13ead07442fd582187e2440beaf64392452681367914eb5453926fc3
SSDEEP

12288:iVbLgPlumQhMbaIMu7L5NVErCA4z2g6rTcbckPU82900Ve7zw+K+DHeQYSUjEXFh:8bLgdlQhfdmMSirYbcMNgef0QeQjG

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3314) 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
3808	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	2024-08-05_f9bfd6b72460c09a4c98862f491af6ad_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	2024-08-05_f9bfd6b72460c09a4c98862f491af6ad_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-08-05_f9bfd6b72460c09a4c98862f491af6ad_wannacry.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-08-05_f9bfd6b72460c09a4c98862f491af6ad_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-08-05_f9bfd6b72460c09a4c98862f491af6ad_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-08-05_f9bfd6b72460c09a4c98862f491af6ad_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-08-05_f9bfd6b72460c09a4c98862f491af6ad_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-08-05_f9bfd6b72460c09a4c98862f491af6ad_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-08-05_f9bfd6b72460c09a4c98862f491af6ad_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-05_f9bfd6b72460c09a4c98862f491af6ad_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2332
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:3808

C:\Users\Admin\AppData\Local\Temp\2024-08-05_f9bfd6b72460c09a4c98862f491af6ad_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-08-05_f9bfd6b72460c09a4c98862f491af6ad_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:384

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
191d4e22df6b9007cdc8e8d94050e28b

SHA1
5be48629dd01d9735f4723f79d75ddb2d877e87c

SHA256
182b479e88820242cf618f08aaedd6f4ddbe607b40f4a4f9881793d80a41131e

SHA512
de69b8fda6d47c93e0baa8e7cd763bc287788dfe33aa30e93e3f27d1cba9352f1d02accceeaae3faf739b98a2e63ee14963fd4591b5957a560c1a43a5545d90b

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