wannacry | 6fdb4494afddec42d262dff876703aabefca1409a155f32fbbdfd06e1a1ca825

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
09-11-2024 13:49

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General

Target

2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe
Size

5.0MB
MD5

4ff3f603a2807a13becf199870911787
SHA1

92d193208747e7dfbfa1fee1954ed6f9b56a7069
SHA256

6fdb4494afddec42d262dff876703aabefca1409a155f32fbbdfd06e1a1ca825
SHA512

b7c6b62ee3a99291d4269036e1d501266bda0ca0191a9ebc4b187e9695baab4382a8a66ef3b01e04590a8b0cbb7c44dd72d5faab729f15afcb4cccfdc8656fe5
SSDEEP

24576:2bLgddQhfdmMSirYbcMNgef0QeQjGAYoAdNLKz662:2nAQqMSPbcBVQejAINR

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Wannacry family
wannacry
Contacts a large (3227) 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

Processes:

tasksche.exe

pid process

2936 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

Processes:

2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe

description ioc process

File created C:\WINDOWS\tasksche.exe 2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe

pid	process
2936	tasksche.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	2024-11-09_4ff3f603a2807a13becf199870911787_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

Processes:

2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe

Modifies data under HKEY_USERS 5 IoCs

Processes:

2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:5056
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2936

C:\Users\Admin\AppData\Local\Temp\2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2240

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
e4a1a5e1c878479fce265c2dc76bc2a9

SHA1
405630c435abe5e0ac796bd417b1e45d19a48cf6

SHA256
f6b579e760ffcac40b6f8cbe07e95aeae9481f4830563bbb8e0868c80f9c4e3f

SHA512
fdc178115c1eeefa6f25f08998b8e9c47646fdc283527a2731f33db0666ffe9461a79d23dc5f9f0a33e9f3c397f0a0c8288df957240a8d6c5af8bbbc968164da

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