wannacry | ca44cdb1f07c43684cd2874fd4e04371f30a218bd571d28a7a5e7a279d6222c7

Analysis

max time kernel
150s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
21-08-2024 09:45

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General

Target

2024-08-21_fd6ded2ba8add6f9739562f9b4999137_wannacry.exe
Size

3.6MB
MD5

fd6ded2ba8add6f9739562f9b4999137
SHA1

af1c132e14974e7c0acd63b7572f6edea8c95731
SHA256

ca44cdb1f07c43684cd2874fd4e04371f30a218bd571d28a7a5e7a279d6222c7
SHA512

9879652f3abbbdd851c124edd5feb81ca0330057e2de47f37b77264d8f18a8ce36e5a908c669cda052bca1771528a7f334c341c1a197787daa6eed3dbb1bbd89
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAA:yDqPoBhz1aRxcSUDk36SA

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3213) 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
3740	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	2024-08-21_fd6ded2ba8add6f9739562f9b4999137_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	2024-08-21_fd6ded2ba8add6f9739562f9b4999137_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-08-21_fd6ded2ba8add6f9739562f9b4999137_wannacry.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-08-21_fd6ded2ba8add6f9739562f9b4999137_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-08-21_fd6ded2ba8add6f9739562f9b4999137_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-08-21_fd6ded2ba8add6f9739562f9b4999137_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-08-21_fd6ded2ba8add6f9739562f9b4999137_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-08-21_fd6ded2ba8add6f9739562f9b4999137_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-08-21_fd6ded2ba8add6f9739562f9b4999137_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-21_fd6ded2ba8add6f9739562f9b4999137_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:4564
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:3740

C:\Users\Admin\AppData\Local\Temp\2024-08-21_fd6ded2ba8add6f9739562f9b4999137_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-08-21_fd6ded2ba8add6f9739562f9b4999137_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2964

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
2b155ed5564477bc12b85015459bc903

SHA1
42a2df1c7d5fed84650a9b24f577c728efbd6feb

SHA256
a3c95d62f915aa464b139e5567832bd25e534afa2e699fb48f0f6a8be7a4cdd0

SHA512
1ca3db5e716e42f0cfaf884640b1b1797ebe5f31319992897701eea7aa96111ef01d0e802b8839aca6cd7645f2d1e3d1b7e8acb6bee26ba659ecfb12521c2ba6

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