wannacry | a5ffdb6d6251b69c518c7e4fa71feeb9b2efadec74d1f4c578890536eec1124d

Resubmissions

12-12-2024 17:27

241212-v1e9fatjgl 10

12-12-2024 00:28

241212-asebystpas 10

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
12-12-2024 17:27

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General

Target

2024-12-12_7bb44ce91d465a2a5295f9168e0b6970_wannacry.exe
Size

3.6MB
MD5

7bb44ce91d465a2a5295f9168e0b6970
SHA1

50678187f149f1e46a738a166c0026ac05bc4a0a
SHA256

a5ffdb6d6251b69c518c7e4fa71feeb9b2efadec74d1f4c578890536eec1124d
SHA512

71c071a8cf2398c4a1fc34fa9c447b893dfe59465f15d392e3724a58bf8bb835aede6e72431e024bb610daa70a819aa65b8107f4301757ed9b75a89d1e972557
SSDEEP

49152:2nAQqMSPbcBVJNRx+TSqTdX1HkQo6SAARdhnvxJM0H9:yDqPoBJRxcSUDk36SAEdhvxWa9

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 (3336) 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
816	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	2024-12-12_7bb44ce91d465a2a5295f9168e0b6970_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	2024-12-12_7bb44ce91d465a2a5295f9168e0b6970_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-12_7bb44ce91d465a2a5295f9168e0b6970_wannacry.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-12-12_7bb44ce91d465a2a5295f9168e0b6970_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-12-12_7bb44ce91d465a2a5295f9168e0b6970_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-12-12_7bb44ce91d465a2a5295f9168e0b6970_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-12-12_7bb44ce91d465a2a5295f9168e0b6970_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-12-12_7bb44ce91d465a2a5295f9168e0b6970_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-12_7bb44ce91d465a2a5295f9168e0b6970_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-12_7bb44ce91d465a2a5295f9168e0b6970_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:4404
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:816

C:\Users\Admin\AppData\Local\Temp\2024-12-12_7bb44ce91d465a2a5295f9168e0b6970_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-12-12_7bb44ce91d465a2a5295f9168e0b6970_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:3660

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
5c2a5c8233d0013014a1eec1d2ce47cc

SHA1
4f6abf67c5b9ea8f2ba053a6276095ecf3329bc9

SHA256
ffae568b8df0e4ade5db934ac902d742f92fe40426306970d8b2080516ab327e

SHA512
6684911c57a8e861c03d569b1c6ed4a18efb74595cd8706195b1aae583d19d05270a597234637a0abb74f34df5842b66dd50803c3365b78d57bc94a8e3145c9d

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