wannacry | 85d96870054c66ac5f7016f751a16d89356ab1b43e8a38e3b7050aeed11e02ff

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
21-10-2024 17:54

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General

Target

2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe
Size

3.6MB
MD5

755006155093a3fe304c41ed483e7539
SHA1

bbc5ba7ce9f9cbfcc89a246266d79f5d52020066
SHA256

85d96870054c66ac5f7016f751a16d89356ab1b43e8a38e3b7050aeed11e02ff
SHA512

8f3dffe0fe59b375bd0e9136077a0242f90fa0e156f76d9d615e1c1a3d9a74f2dd367a40ebdd0177e699ead6e27020a98721b82cb995c8a9218c59c3ea2b635c
SSDEEP

98304:XDqPoBhz1aRxcSUDk36SAEdhvxWa9P59:XDqPe1Cxcxk3ZAEUad

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3343) 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
4644	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	2024-10-21_755006155093a3fe304c41ed483e7539_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	2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-21_755006155093a3fe304c41ed483e7539_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\AutoDetect = "0"	2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:860
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:4644

C:\Users\Admin\AppData\Local\Temp\2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:3888

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
a62defcbf27b5a8a62d8210be12ab23a

SHA1
d85799b69899e598b85ed9c280789835f6958fa4

SHA256
a7928fe37e01469bfb4c85d0805e3d0fc4fb15dc1547e962cb34082e536bd086

SHA512
df2ec3e302649511f120f2fc9592e88ca2a6627ccab04e5ab052c828942893f89dada4808a09699c62f2cdc66f3ec671a6daefb21bf4367f5572b547a979388c

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