wannacry | 50bc96d0df9d2e13211d73c578808bb4fbf21471d3acd6401e43e600d278a9ee

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
04-10-2024 15:03

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General

Target

50bc96d0df9d2e13211d73c578808bb4fbf21471d3acd6401e43e600d278a9eeN.exe
Size

3.6MB
MD5

e5670e8159d0ae2d0c35235ecfaba450
SHA1

69e895fb65c1d660abae74785026165d6cc4e386
SHA256

50bc96d0df9d2e13211d73c578808bb4fbf21471d3acd6401e43e600d278a9ee
SHA512

c57e7aca7015261596b0deb6d18235663bc3d16761d7eed4ce72e2a16ec34d52d3716c51bee76b844ac2fb67d8a7342249e956448c9cae64b9499fc47eff77d7
SSDEEP

49152:2nAQqMSPbcBVF+TSqTdX1HkQo6SAARdhnvxJM0H9PA:yDqPoB3cSUDk36SAEdhvxWa9P

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3262) 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
4564	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	50bc96d0df9d2e13211d73c578808bb4fbf21471d3acd6401e43e600d278a9eeN.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	50bc96d0df9d2e13211d73c578808bb4fbf21471d3acd6401e43e600d278a9eeN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	50bc96d0df9d2e13211d73c578808bb4fbf21471d3acd6401e43e600d278a9eeN.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"	50bc96d0df9d2e13211d73c578808bb4fbf21471d3acd6401e43e600d278a9eeN.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	50bc96d0df9d2e13211d73c578808bb4fbf21471d3acd6401e43e600d278a9eeN.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	50bc96d0df9d2e13211d73c578808bb4fbf21471d3acd6401e43e600d278a9eeN.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	50bc96d0df9d2e13211d73c578808bb4fbf21471d3acd6401e43e600d278a9eeN.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	50bc96d0df9d2e13211d73c578808bb4fbf21471d3acd6401e43e600d278a9eeN.exe

C:\Users\Admin\AppData\Local\Temp\50bc96d0df9d2e13211d73c578808bb4fbf21471d3acd6401e43e600d278a9eeN.exe
"C:\Users\Admin\AppData\Local\Temp\50bc96d0df9d2e13211d73c578808bb4fbf21471d3acd6401e43e600d278a9eeN.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:3776
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:4564

C:\Users\Admin\AppData\Local\Temp\50bc96d0df9d2e13211d73c578808bb4fbf21471d3acd6401e43e600d278a9eeN.exe
C:\Users\Admin\AppData\Local\Temp\50bc96d0df9d2e13211d73c578808bb4fbf21471d3acd6401e43e600d278a9eeN.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:4068

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
62de38fd7e4af3ddf09a2cfcdad030e4

SHA1
fe98afe91ac76d27c29e0b408b717d6402617fab

SHA256
d6da217444ba03d92ef7124cf6e8278d27f2c27c5373a354a6bb4e8ee1e0d093

SHA512
b07a7475027e93bc47f7467606c232bced5a8dd3f6429050d65d9d60f8d060bc66f0a989f631c75a550d89bd243147121bc9ccf0edf268e9decad3c986c32eb9

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