wannacry | 5dc1fefd645c696c4538f7476823f5f19d3c686ab45b57207af9a20601f86c23

Analysis

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

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
27-09-2024 17:07

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General

Target

2024-09-27_654b35309ba5da582a844b331ac973b6_wannacry.exe
Size

3.6MB
MD5

654b35309ba5da582a844b331ac973b6
SHA1

bfd64481bfbf387c60c99961e1c88d8b1a715d52
SHA256

5dc1fefd645c696c4538f7476823f5f19d3c686ab45b57207af9a20601f86c23
SHA512

ea4e3e244502ae008c60e38a844ea8866306371175984e657f089fcb9b9337671d74911b5c3503cae600348d4b04b23d87aca918ff0d18fa0152ff50358d3bf5
SSDEEP

49152:2nAQqMSPbcBD6c//bCKYWu0J6izuLzJYtqIOUpKDfAVJ9:yDqPoBl7zuL2pgk

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3342) 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
2360	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	2024-09-27_654b35309ba5da582a844b331ac973b6_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	2024-09-27_654b35309ba5da582a844b331ac973b6_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-27_654b35309ba5da582a844b331ac973b6_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\AutoDetect = "0"	2024-09-27_654b35309ba5da582a844b331ac973b6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-27_654b35309ba5da582a844b331ac973b6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-09-27_654b35309ba5da582a844b331ac973b6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-09-27_654b35309ba5da582a844b331ac973b6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-09-27_654b35309ba5da582a844b331ac973b6_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-27_654b35309ba5da582a844b331ac973b6_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-27_654b35309ba5da582a844b331ac973b6_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2500
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2360

C:\Users\Admin\AppData\Local\Temp\2024-09-27_654b35309ba5da582a844b331ac973b6_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-27_654b35309ba5da582a844b331ac973b6_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:3976

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
05da683d084e6e03b47bda19fb9ee142

SHA1
bc0b3daa2c33501680c2b304d58b0cc762fe376c

SHA256
a79867a698f370b8602f67ced1d6c12a241121b842d3fbc1135a65f4625ca698

SHA512
281b0d648e4462d234d487e34094b83a06430d4c3aa90f3e839e8e2def66d25ee9af10ff271f0f9ed46224cfecef52cbafb610094dd3b4b0076f5088897aa290

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