wannacry | ef53839c12e36eebe0bbfccdbc5b0822907e816644fea8a8df95ac15b28fac2d

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 16:55

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General

Target

2024-09-27_2e97995020454b56e63c010f2c8e3df5_wannacry.exe
Size

3.6MB
MD5

2e97995020454b56e63c010f2c8e3df5
SHA1

993fda1608f6e3daf02b447a7f975917854c1914
SHA256

ef53839c12e36eebe0bbfccdbc5b0822907e816644fea8a8df95ac15b28fac2d
SHA512

e6e31d0ea1d3adae296be1abeca5816fe674dbbeffb08fffea4155f1fb16a8e7be77f05470343c7f653a5f4976722b3b03bcb47d92b3324feb10b3418affb947
SSDEEP

98304:XDqPoBhi1aRxcSUDk36SAEdhvxWa9P593R8yAVp2HI:XDqPf1Cxcxk3ZAEUadzR8yc4HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3309) 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
2240	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_2e97995020454b56e63c010f2c8e3df5_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_2e97995020454b56e63c010f2c8e3df5_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-27_2e97995020454b56e63c010f2c8e3df5_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_2e97995020454b56e63c010f2c8e3df5_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-09-27_2e97995020454b56e63c010f2c8e3df5_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-09-27_2e97995020454b56e63c010f2c8e3df5_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-09-27_2e97995020454b56e63c010f2c8e3df5_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-09-27_2e97995020454b56e63c010f2c8e3df5_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-27_2e97995020454b56e63c010f2c8e3df5_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-27_2e97995020454b56e63c010f2c8e3df5_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1908
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2240

C:\Users\Admin\AppData\Local\Temp\2024-09-27_2e97995020454b56e63c010f2c8e3df5_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-27_2e97995020454b56e63c010f2c8e3df5_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:4528

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
2e4f8ff13941baedbabc987368a1e720

SHA1
29089cba335601e4c4efb1f13c7b417f111efef1

SHA256
1df40962ca22e71f59c7041a72e2e12e203f6db9fb5eb0ea7fb96011be269e25

SHA512
2a12e4b001f475f9d56e399768f5949c8e4b45578160b9cd2287a338281a9b6b60c693deaf6bdb0fa65b9ef90884256b9f7ba583c9e9334686d4537f93f8e2cc

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