wannacry | 20dc7779129b4cb4b049efdb8251a4be3103fdd3be25c8579ca31c070882a240

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
11-10-2024 01:13

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General

Target

2024-10-11_e3606442344fa4be2beb528794400368_wannacry.exe
Size

3.6MB
MD5

e3606442344fa4be2beb528794400368
SHA1

dbb433e5b857312217cda7f2f90d707f80f0ec99
SHA256

20dc7779129b4cb4b049efdb8251a4be3103fdd3be25c8579ca31c070882a240
SHA512

825cead3db53fe45baea9cae4bcb76f4aca860b656997b9fa59e3e8ff76bc257fb8f5f5df96aef242c9a2db30f790c0de5defd2b0252b483689df89433ecce64
SSDEEP

49152:XnAQqMSPbcBVQej/1INUpjYV8W36SAARdhnvxJM0H9/lAHI:XDqPoBhz1aUpcN36SAEdhvxWa9/2HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3318) 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
3956	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	2024-10-11_e3606442344fa4be2beb528794400368_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	2024-10-11_e3606442344fa4be2beb528794400368_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-11_e3606442344fa4be2beb528794400368_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\IntranetName = "1"	2024-10-11_e3606442344fa4be2beb528794400368_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-10-11_e3606442344fa4be2beb528794400368_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-10-11_e3606442344fa4be2beb528794400368_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-11_e3606442344fa4be2beb528794400368_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-10-11_e3606442344fa4be2beb528794400368_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-11_e3606442344fa4be2beb528794400368_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-11_e3606442344fa4be2beb528794400368_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:4116
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:3956

C:\Users\Admin\AppData\Local\Temp\2024-10-11_e3606442344fa4be2beb528794400368_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-11_e3606442344fa4be2beb528794400368_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:4732

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
5118897fc10a5d48d49946d5f5669182

SHA1
78c66d8a5466ed858d359d87ade3be914a8a6cca

SHA256
227b95656784bef7820491feaa356f557cb8323d434b0fcbdb7651b6b37e4934

SHA512
b05f89e7e3601c418a1d01e945e8b0e08ad62bdeaedfcfc80b0a59f167b97fc41f70add0e7c6786226df067f3d406591f4725899a65df317c0c0c6d56f05dba4

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