wannacry | 798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16

Analysis

max time kernel
120s
max time network
121s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11-01-2025 04:13

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General

Target

798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16.exe
Size

3.6MB
MD5

583e79d805cfd365d6cece8cfa1ce0d2
SHA1

c2ce3f6d695a4c40727c9f9a98bc46dd03079f32
SHA256

798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16
SHA512

2778e93f9c6ef4a1c22c152d6eed3b114830b62cfa13f661765e7bbb9c9aa1849c02f2bacd0e86a633514a1feb204c4c49f3e148379a5b0ee10390e3afebf9a2
SSDEEP

24576:XbLgddQhfdmMSirYbcMNge71cPXTZd1+IE8SBk4GhGP5qfl8J0a7:XnAQqMSPbcBu1cPoykP5qN8ya7

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 (2407) 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
5116	tasksche.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16.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	798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16.exe

C:\Users\Admin\AppData\Local\Temp\798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16.exe
"C:\Users\Admin\AppData\Local\Temp\798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2512
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:5116

C:\Users\Admin\AppData\Local\Temp\798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16.exe
C:\Users\Admin\AppData\Local\Temp\798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:3460

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

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
6338b8ee8ee2c042f74ccb3e99e7750b

SHA1
dfc909c2be82bc26519b413023e176a648e14c12

SHA256
2bdf03850ae71e1f8610e9b925a449a472b63f61eacbe1651460dc2314006bdb

SHA512
a120254cc5a50f475d5912c9a97c0962712638a89d03768698e501cc53cee3ccfd55d91fe70ea07b9fa68c0389ff6727d085618c406b4d6316f02e0737f9ce36

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