wannacry | b331dde456a219d8b64c158b8b67457e6e03b57074a9d35f3cef7b37e6a6f1dd

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
27-09-2024 17:27

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General

Target

2024-09-27_b1f8fca2f84e1568ea47459ed75d0643_wannacry.exe
Size

3.6MB
MD5

b1f8fca2f84e1568ea47459ed75d0643
SHA1

2cf74e31ea063fb18efbe40cd3347ee13d4c698b
SHA256

b331dde456a219d8b64c158b8b67457e6e03b57074a9d35f3cef7b37e6a6f1dd
SHA512

0d5bf8648970174e6f7ef23cdf7928d956bd886f76fd38c4825ee6bfe3c7c11c653dde2821f5f6af0c88c60670fd2faef3095bffb40cd032acb844afa7efa6fc
SSDEEP

49152:XnAQqMSPbcBVJkQo6SAARdhnvxJM0H9PAMEcaEau3R8yAH1:XDqPoBbk36SAEdhvxWa9P593R8yAV

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (2699) 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
2400	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	2024-09-27_b1f8fca2f84e1568ea47459ed75d0643_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	2024-09-27_b1f8fca2f84e1568ea47459ed75d0643_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-27_b1f8fca2f84e1568ea47459ed75d0643_wannacry.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-27_b1f8fca2f84e1568ea47459ed75d0643_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-09-27_b1f8fca2f84e1568ea47459ed75d0643_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-09-27_b1f8fca2f84e1568ea47459ed75d0643_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-09-27_b1f8fca2f84e1568ea47459ed75d0643_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-09-27_b1f8fca2f84e1568ea47459ed75d0643_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-27_b1f8fca2f84e1568ea47459ed75d0643_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-27_b1f8fca2f84e1568ea47459ed75d0643_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1564
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2400

C:\Users\Admin\AppData\Local\Temp\2024-09-27_b1f8fca2f84e1568ea47459ed75d0643_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-27_b1f8fca2f84e1568ea47459ed75d0643_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:4176

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
872c84ab22a624403b75a95f538b6f2b

SHA1
856420d3feebd7be61690ee89ef48e07977895c6

SHA256
199821f1f7a9d34ecb9f49d972b0bd8dbf684fc65629920b9bf47ec2b74ae303

SHA512
b84e765c3db974190cd40332346c5acd7b771e193c5d244ea4b410d47e2cab8e747f5aac724d75b264d189424bc1be03a4b4bb738adf23d0502bbe2ff801cb8c

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