wannacry | 51c8847b8f3a3437675ab207d5b2ecc8f96a5c194af50e5296587b28157a8353

Analysis

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

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
12-08-2024 10:55

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General

Target

2024-08-12_8e26e1260f667ec4524d800871c5a2ee_wannacry.exe
Size

5.0MB
MD5

8e26e1260f667ec4524d800871c5a2ee
SHA1

e813831f10bcc005fd8af40ac1d7917717e8b653
SHA256

51c8847b8f3a3437675ab207d5b2ecc8f96a5c194af50e5296587b28157a8353
SHA512

1eb87f76a9bab00377d8549299f1ebb6ae92e9a030b912ce561c1c33e8fa0503de91bb89a2d088e92db89fd59011fb44f47feb0ed7e479db9b2faf3e42453eb5
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAAc:yDqPoBhz1aRxcSUDk36SAd

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3354) 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
3660	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	2024-08-12_8e26e1260f667ec4524d800871c5a2ee_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	2024-08-12_8e26e1260f667ec4524d800871c5a2ee_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-08-12_8e26e1260f667ec4524d800871c5a2ee_wannacry.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-08-12_8e26e1260f667ec4524d800871c5a2ee_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-08-12_8e26e1260f667ec4524d800871c5a2ee_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-08-12_8e26e1260f667ec4524d800871c5a2ee_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-08-12_8e26e1260f667ec4524d800871c5a2ee_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-08-12_8e26e1260f667ec4524d800871c5a2ee_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-08-12_8e26e1260f667ec4524d800871c5a2ee_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-12_8e26e1260f667ec4524d800871c5a2ee_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:4868
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:3660

C:\Users\Admin\AppData\Local\Temp\2024-08-12_8e26e1260f667ec4524d800871c5a2ee_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-08-12_8e26e1260f667ec4524d800871c5a2ee_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:4336

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
11e9bbc102380fcb633d6fd0702a26e7

SHA1
8db292361793573dfa3dbbb02221eda7ae82f887

SHA256
75ab07907b528005c0832e1021b3fd6ee8becb2328658e9db31e6f4061d5d9c3

SHA512
dc26926e4beb586dd17c9e897a3f93e54eb3dc36e47642e2319ec5e9282615e33546f4fb69e339e598417e5f693c1bc0a96ae687e18c7e0b5e36a060f6f88fa9

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