wannacry | 8d569015451b55f6b5f8db274202ff33aae3c8a854817729af1bb09d448bcc29

Analysis

max time kernel
150s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
21-08-2024 08:05

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General

Target

2024-08-21_a6f524d7b44865f347da60568ef84465_wannacry.exe
Size

5.0MB
MD5

a6f524d7b44865f347da60568ef84465
SHA1

6de241f607f5d938d63b80d4c225cbf467ee9574
SHA256

8d569015451b55f6b5f8db274202ff33aae3c8a854817729af1bb09d448bcc29
SHA512

8fc1ceed7181046b68d8aa637b28e31025c0ae8b30ba5b3a9610138b68b9926946ce29015a8d04934dd808ae82a726115ef997bf59d9f5aca3670142cff16475
SSDEEP

12288:GebLgPlu+QhMbaIMu7L5NVErCA4z2g6rTcbckPU82:XbLgddQhfdmMSirYbcM

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3194) 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
3856	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	2024-08-21_a6f524d7b44865f347da60568ef84465_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	2024-08-21_a6f524d7b44865f347da60568ef84465_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-08-21_a6f524d7b44865f347da60568ef84465_wannacry.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-08-21_a6f524d7b44865f347da60568ef84465_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-08-21_a6f524d7b44865f347da60568ef84465_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-08-21_a6f524d7b44865f347da60568ef84465_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-08-21_a6f524d7b44865f347da60568ef84465_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-08-21_a6f524d7b44865f347da60568ef84465_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-08-21_a6f524d7b44865f347da60568ef84465_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-21_a6f524d7b44865f347da60568ef84465_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:3700
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:3856

C:\Users\Admin\AppData\Local\Temp\2024-08-21_a6f524d7b44865f347da60568ef84465_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-08-21_a6f524d7b44865f347da60568ef84465_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2668

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
b481035657e606753d425c2bc68e8311

SHA1
143cd755ba706570e91aa80ca58a33d8a3fc8ef9

SHA256
2ef7f94fd0c8a7224411f32fdbdfe65c15ca7f79812e1a9adf18280a1a0fada2

SHA512
74fb6363231652370bb06671df9c013b7444f7645fa228d390804441d7992f6f4bb896ce32a553e345a7aa6f2687ea5215a0ff9b246e7aac592ec385f8cb2b73

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