wannacry | bd45eaf34858917fca6aa2b846f5cf9382440cd91d12ba307cf9a7ef805205b9

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
28-07-2024 11:56

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General

Target

2024-07-28_e1610231b159795f7cf87396bf55fa7d_wannacry.exe
Size

5.0MB
MD5

e1610231b159795f7cf87396bf55fa7d
SHA1

ae211213d7a54e39d11f87b20824e846825dc298
SHA256

bd45eaf34858917fca6aa2b846f5cf9382440cd91d12ba307cf9a7ef805205b9
SHA512

733babd104616d1d949dfb64228d6e944c1885b39edee83a306643a627b877ee61aa439940eb5f2fdeb4497d530ce688f96fe1635469662bf9c127a9284de40e
SSDEEP

24576:2bLgddQhfdmMSirYbcMNgef0QeQjG/D8kIqRYo:2nAQqMSPbcBVQej/1

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3229) 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
4752	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	2024-07-28_e1610231b159795f7cf87396bf55fa7d_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	2024-07-28_e1610231b159795f7cf87396bf55fa7d_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-07-28_e1610231b159795f7cf87396bf55fa7d_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\UNCAsIntranet = "1"	2024-07-28_e1610231b159795f7cf87396bf55fa7d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-07-28_e1610231b159795f7cf87396bf55fa7d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-07-28_e1610231b159795f7cf87396bf55fa7d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-07-28_e1610231b159795f7cf87396bf55fa7d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-07-28_e1610231b159795f7cf87396bf55fa7d_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-07-28_e1610231b159795f7cf87396bf55fa7d_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-28_e1610231b159795f7cf87396bf55fa7d_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1528
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:4752

C:\Users\Admin\AppData\Local\Temp\2024-07-28_e1610231b159795f7cf87396bf55fa7d_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-07-28_e1610231b159795f7cf87396bf55fa7d_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:436

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
47361f7289fe529520e8f95492fc6717

SHA1
fdc74e998bdcf17bcb532b4d787af683ff7b2809

SHA256
5b7c9d99c3c0b8aa114651a26fe85269e650fa86b5dc6585bca5943242be42ba

SHA512
ec1ea955a63f2a99284d2a6dee3a445abcdd4435929d547d5183fcae4426fc71616493da9d9c1b4b8b4a76eaad2a67ce47f3bdabedf2f5c53a0015d83705f312

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