wannacry | bb52c4c114162a6d1fc75dbedb03e1e8ac085919e2c1598161ae2effc7ad7d10

Analysis

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

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
29-09-2024 15:05

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General

Target

202409294bcfc4199d6314b8ff177449f4ad48f8wannacry.exe
Size

5.0MB
MD5

4bcfc4199d6314b8ff177449f4ad48f8
SHA1

2bd553d1d89f45b3c72cb327d0bb2c375879508f
SHA256

bb52c4c114162a6d1fc75dbedb03e1e8ac085919e2c1598161ae2effc7ad7d10
SHA512

9be95254f7a7e35e7b5a72b4f0adce93670a3cbb1ff871993b5d6d5141651c9c20694c7b4f317a127cf23233cc848d87c8a6b620cadbb5538fa8a80044283a80
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAAGu3R8yAH1plA:yDqPoBhz1aRxcSUDk36SAu3R8yAVp2

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3358) 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
1572	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	202409294bcfc4199d6314b8ff177449f4ad48f8wannacry.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	202409294bcfc4199d6314b8ff177449f4ad48f8wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	202409294bcfc4199d6314b8ff177449f4ad48f8wannacry.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"	202409294bcfc4199d6314b8ff177449f4ad48f8wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	202409294bcfc4199d6314b8ff177449f4ad48f8wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	202409294bcfc4199d6314b8ff177449f4ad48f8wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	202409294bcfc4199d6314b8ff177449f4ad48f8wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	202409294bcfc4199d6314b8ff177449f4ad48f8wannacry.exe

C:\Users\Admin\AppData\Local\Temp\202409294bcfc4199d6314b8ff177449f4ad48f8wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\202409294bcfc4199d6314b8ff177449f4ad48f8wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:3144
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1572

C:\Users\Admin\AppData\Local\Temp\202409294bcfc4199d6314b8ff177449f4ad48f8wannacry.exe
C:\Users\Admin\AppData\Local\Temp\202409294bcfc4199d6314b8ff177449f4ad48f8wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:3472

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
d61301661f8237fe2a76ae121c1d024a

SHA1
4b364db7dc680ac22264bb3635e69affefe135e2

SHA256
9b969824294ec83bb7082aa55b870073f86d4691b8d21803a5d65f87d253eef8

SHA512
849910b9a3a9fa49ca44b716f59000e3925d4c043eaa93dfc334374abab42f8bf0a03936ee0277743844dc86576bb288aa3e98978ff2bc184fd6cf64ca6463a7

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