wannacry | 3f66313a8e8c88385bf831620cf90260b5753fa606aa0ce1c1351079b9540c04

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 14:40

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General

Target

2024-09-27_ef1cc98616f992cc4892dad940395021_wannacry.exe
Size

3.6MB
MD5

ef1cc98616f992cc4892dad940395021
SHA1

a6285a09a3ef24c572a44df7d8fbf4085b0a3caf
SHA256

3f66313a8e8c88385bf831620cf90260b5753fa606aa0ce1c1351079b9540c04
SHA512

0840e9257881bcdf3fd9666c04f89984b635c6db2988cd13d2b60c52b41f3bfd26c435fb89609b29c05d02d9fd28b1097c856b0a4d4755d6f82382dac3a3ef7d
SSDEEP

49152:2nAQqMSPbcBVQej31sNRx+TSqTdX1HkQo6SAARdh:yDqPoBhT1+RxcSUDk36SAEdh

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3280) 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
2080	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_ef1cc98616f992cc4892dad940395021_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_ef1cc98616f992cc4892dad940395021_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-27_ef1cc98616f992cc4892dad940395021_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_ef1cc98616f992cc4892dad940395021_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-27_ef1cc98616f992cc4892dad940395021_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-09-27_ef1cc98616f992cc4892dad940395021_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-09-27_ef1cc98616f992cc4892dad940395021_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-09-27_ef1cc98616f992cc4892dad940395021_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-27_ef1cc98616f992cc4892dad940395021_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-27_ef1cc98616f992cc4892dad940395021_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:764
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2080

C:\Users\Admin\AppData\Local\Temp\2024-09-27_ef1cc98616f992cc4892dad940395021_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-27_ef1cc98616f992cc4892dad940395021_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2844

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
4d816f501ac16033f62e1f4491ba5013

SHA1
351cf6da3c1558981742184d760c40f024467418

SHA256
cefd3dd63a749dddd624ece41ea27b0646f0b38489f6a06d82f9aed19a3d4f0a

SHA512
e416bcdd1bd905e0160318a4ae2f247b7c3abab8c57c9e590370622a643e42e93757dcba602a9602219808f39d04b7ba954e1ec72e930f32d391968fab7da79b

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