wannacry | 405ca1e135c0db4d4394f1e343c4b1f60d77f5573ea03f199fe3fd7ea61ecde2

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19-10-2024 18:53

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General

Target

2024-10-19_16c9fc4bb5aadc37c8cdcde301cf44d0_wannacry.exe
Size

3.6MB
MD5

16c9fc4bb5aadc37c8cdcde301cf44d0
SHA1

b33db650e6901dcbf1d048bdeeccbfbbb59e2463
SHA256

405ca1e135c0db4d4394f1e343c4b1f60d77f5573ea03f199fe3fd7ea61ecde2
SHA512

d815d67dbaaa9ddecfa8842374c2c311c5869f3448177e674874dcdf62e08b4c956890cb581725d0020684c5318fedcfc3b7b67c15dc7bf7eae9d2d0d855fe1b
SSDEEP

98304:Z8qPoBhz1aRxcSUDk36SAEdhvxWa9P5BZx8:Z8qPe1Cxcxk3ZAEUadj78

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3259) 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
352	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 System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2024-10-19_16c9fc4bb5aadc37c8cdcde301cf44d0_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-19_16c9fc4bb5aadc37c8cdcde301cf44d0_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	2024-10-19_16c9fc4bb5aadc37c8cdcde301cf44d0_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-19_16c9fc4bb5aadc37c8cdcde301cf44d0_wannacry.exe

Modifies data under HKEY_USERS 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-19_16c9fc4bb5aadc37c8cdcde301cf44d0_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-19_16c9fc4bb5aadc37c8cdcde301cf44d0_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-19_16c9fc4bb5aadc37c8cdcde301cf44d0_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2484
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:352

C:\Users\Admin\AppData\Local\Temp\2024-10-19_16c9fc4bb5aadc37c8cdcde301cf44d0_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-19_16c9fc4bb5aadc37c8cdcde301cf44d0_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1720

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

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
008cc723d62d404994c49afbedbc1a43

SHA1
43c4571def1f4df4d6245e3fec91c9504b0553dd

SHA256
1ce1f15e09db58cf191d99b634bde114134718e2fa0e95eb611496ba1d4a568e

SHA512
5449d6c0a0769df0afe1184e7e3b6c415244f28590296bb231031f364e774adca3ed7e853d010d2613990fc784e38f4876cc0b3e03773f11db8dc894ce0f446a

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