wannacry | cdeb5b8d9d85085c2458674e90a545e3f3fe0a8c83b29b105393e20ea466c00d

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
15-09-2024 13:03

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General

Target

202409152222cb3a0e552fbb61c9c3b39250369cwannacry.exe
Size

5.0MB
MD5

2222cb3a0e552fbb61c9c3b39250369c
SHA1

d75b257dcfd8f5e503507b60b68293ae5f46859f
SHA256

cdeb5b8d9d85085c2458674e90a545e3f3fe0a8c83b29b105393e20ea466c00d
SHA512

97f71534d62b528cdd42ce8962d2c6424f0e3e53758a112f326bf081462901706b6a816170cea29768523ec0d6abbbf31497d7092dd59cab061812365e346a90
SSDEEP

12288:GvbLgPlu+QhMbaIMu7L5NVErCA4z2g6rTcbckPU82900Ve7zw+K+DHeQYSUjEXFr:2bLgddQhfdmMSirYbcMNgef0QeQjG

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3183) 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
4300	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	202409152222cb3a0e552fbb61c9c3b39250369cwannacry.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	202409152222cb3a0e552fbb61c9c3b39250369cwannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	202409152222cb3a0e552fbb61c9c3b39250369cwannacry.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	202409152222cb3a0e552fbb61c9c3b39250369cwannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	202409152222cb3a0e552fbb61c9c3b39250369cwannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	202409152222cb3a0e552fbb61c9c3b39250369cwannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	202409152222cb3a0e552fbb61c9c3b39250369cwannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	202409152222cb3a0e552fbb61c9c3b39250369cwannacry.exe

C:\Users\Admin\AppData\Local\Temp\202409152222cb3a0e552fbb61c9c3b39250369cwannacry.exe
"C:\Users\Admin\AppData\Local\Temp\202409152222cb3a0e552fbb61c9c3b39250369cwannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2916
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:4300

C:\Users\Admin\AppData\Local\Temp\202409152222cb3a0e552fbb61c9c3b39250369cwannacry.exe
C:\Users\Admin\AppData\Local\Temp\202409152222cb3a0e552fbb61c9c3b39250369cwannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2492

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
02b1e6706437e74f6194fd3629b5e91e

SHA1
bc99a43c5693a9c328da138cf7aba744cba2c21c

SHA256
15f1461a48644889ea14961de6d5276024a36c34b957496b00f2451d856cdfb3

SHA512
d50499e1ac060835d7d9a488a35aac75dd1035b363480e79f94ec020ec046783be7e177eef769e71e3b519b7969600981723a18bf2c2cc12ab6b67d7ffbc3e1d

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