wannacry | 683da41aaf9717d515023e01f57e9b4725b0d2e72f12c8abfa28cece59ff2058

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
25-11-2024 13:55

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General

Target

2024-11-25_c659b63f123687a7c98cbfde3694a199_wannacry.exe
Size

5.0MB
MD5

c659b63f123687a7c98cbfde3694a199
SHA1

b5307316b0147bdf772cd9873ea14b3b818a7042
SHA256

683da41aaf9717d515023e01f57e9b4725b0d2e72f12c8abfa28cece59ff2058
SHA512

4cfe3babec04fcedbf6b9de862e2828f36b5f2da3b14369e402396e1d26ea941d6919b25aea9847635cc0b371fa6a1876020cdfd737c149b5a6ed4559520f48c
SSDEEP

98304:yDqPoBhz1GRXcSUDkT6SAEdhvxWa92593R8yAV22H:yDqPe12XcxkTZAEUaIzR8yc9H

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 (3368) 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
3968	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	2024-11-25_c659b63f123687a7c98cbfde3694a199_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	2024-11-25_c659b63f123687a7c98cbfde3694a199_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-25_c659b63f123687a7c98cbfde3694a199_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\AutoDetect = "0"	2024-11-25_c659b63f123687a7c98cbfde3694a199_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-11-25_c659b63f123687a7c98cbfde3694a199_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-11-25_c659b63f123687a7c98cbfde3694a199_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-11-25_c659b63f123687a7c98cbfde3694a199_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-11-25_c659b63f123687a7c98cbfde3694a199_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-25_c659b63f123687a7c98cbfde3694a199_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-25_c659b63f123687a7c98cbfde3694a199_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:552
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:3968

C:\Users\Admin\AppData\Local\Temp\2024-11-25_c659b63f123687a7c98cbfde3694a199_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-25_c659b63f123687a7c98cbfde3694a199_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:4060

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
bf80849c7610ec8edb213767c3e2aef1

SHA1
0532640ee1078c7acbeda03da1b1b5f89a6af32f

SHA256
1b9418d96953870cfdc8567305204b25152cfb4ccdedc61b76669d07440cedac

SHA512
7ff65e095fc552d29840812bb8c859af9de3ccd0d85f290c666c4ce6c8b554f2dbd4101bad9b8bf1e69091d238575aa6d3774b68a340b81e997a53bc292b1b3f

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