wannacry | b3dfea531c87023e2a9dbeb6591a0da765e218432fc8703e352cfaa56c2d36c6

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
11-10-2024 13:31

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General

Target

2024-10-11_34bc4b258d570831737f598609bcccbc_wannacry.exe
Size

5.0MB
MD5

34bc4b258d570831737f598609bcccbc
SHA1

fdcd9c9a8726ee712753e9fd9152a0894f1c42cb
SHA256

b3dfea531c87023e2a9dbeb6591a0da765e218432fc8703e352cfaa56c2d36c6
SHA512

3f5e36ecdedc838603519618533c9adcc4c89047840381624341a0181a091bc45dc7a34686ae087ea170e10a7dca331ca1b4560d945798b1136809dcb214a4f6
SSDEEP

24576:2bLgddQhfdmMSirYbcMNgef0sX6SASk+RdhAdmv:2nAQqMSPbcBVQ6SAARdhnv

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3340) 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
864	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	2024-10-11_34bc4b258d570831737f598609bcccbc_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	2024-10-11_34bc4b258d570831737f598609bcccbc_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-11_34bc4b258d570831737f598609bcccbc_wannacry.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-10-11_34bc4b258d570831737f598609bcccbc_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-10-11_34bc4b258d570831737f598609bcccbc_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-10-11_34bc4b258d570831737f598609bcccbc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-11_34bc4b258d570831737f598609bcccbc_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-10-11_34bc4b258d570831737f598609bcccbc_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-11_34bc4b258d570831737f598609bcccbc_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-11_34bc4b258d570831737f598609bcccbc_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1952
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:864

C:\Users\Admin\AppData\Local\Temp\2024-10-11_34bc4b258d570831737f598609bcccbc_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-11_34bc4b258d570831737f598609bcccbc_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:3604

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
828658a827c964a7a084d62427d1612d

SHA1
cd6dc753cecef588d9729cc30980fe6e1092392c

SHA256
478741f89aaa28d008b159e10296d771f34654ddc179a494a3dd9f94d365b8b6

SHA512
aeaf012657450eede6cdadffcebb808a727b592c6cd954eadb8dc29bbb860ee615bf3e1bebef2a9e530a274b902e91bcfa41e996ce0ba27d77fdad620a9b4544

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