wannacry | d78f3c65fc376d675af5c47382a191efdbeacd577b343f7a458fd0e18f7c9831

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
24-09-2024 17:44

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General

Target

2024-09-24_6da447e2d8b91aae7fc416d0fe34c598_wannacry.exe
Size

3.6MB
MD5

6da447e2d8b91aae7fc416d0fe34c598
SHA1

bf95af17d8f25629613594f38a352d178a50eda5
SHA256

d78f3c65fc376d675af5c47382a191efdbeacd577b343f7a458fd0e18f7c9831
SHA512

4158fe5a35144acb3fc5dc9d9d1dc8410e0d9713b16692bf003b0ada02874d8e1353b99d62d3d9516f3ac97c6b102bf5a753f4352eeeb9699cbce5f45acb5129
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9LEau:yDqPoBhz1aRxcSUDk36SAEdhvxWa9y

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3275) 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
4192	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	2024-09-24_6da447e2d8b91aae7fc416d0fe34c598_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	2024-09-24_6da447e2d8b91aae7fc416d0fe34c598_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-24_6da447e2d8b91aae7fc416d0fe34c598_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\ProxyBypass = "1"	2024-09-24_6da447e2d8b91aae7fc416d0fe34c598_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-09-24_6da447e2d8b91aae7fc416d0fe34c598_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-09-24_6da447e2d8b91aae7fc416d0fe34c598_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-09-24_6da447e2d8b91aae7fc416d0fe34c598_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-24_6da447e2d8b91aae7fc416d0fe34c598_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-24_6da447e2d8b91aae7fc416d0fe34c598_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-24_6da447e2d8b91aae7fc416d0fe34c598_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:5108
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:4192

C:\Users\Admin\AppData\Local\Temp\2024-09-24_6da447e2d8b91aae7fc416d0fe34c598_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-24_6da447e2d8b91aae7fc416d0fe34c598_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:4200

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
bf4e83c05dbf8f486bc7599771f795c9

SHA1
2d434d5098689667d247195320784772e819dbb1

SHA256
10dcfd19fe45fb8517f35ee066642b8b71bca2074a1154725fe8d9609e9cdf82

SHA512
02f4816f78502790b3d8690a45ac8193d7e5a298f8246e320cc79e9418b3f9859985cddbd662b814b14266d9c0504495f9a7ead203404bc29e61e3bfef3ddce2

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