wannacry | dcbe3bdf580d7acc7252e9fe43d4ee78ad48a8be9ef737b56e43127b808b0fb1

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240730-en
resource tags

arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system
submitted
02-08-2024 09:37

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General

Target

2024-08-02_3c53b840fbf1deb8feb0a79b54dd11a9_wannacry.exe
Size

5.0MB
MD5

3c53b840fbf1deb8feb0a79b54dd11a9
SHA1

ae5cfa224986e5c311e3bc3373ca31ad092345ea
SHA256

dcbe3bdf580d7acc7252e9fe43d4ee78ad48a8be9ef737b56e43127b808b0fb1
SHA512

36ea4b8d8119c87aaf8e14d29a8404c6f049a445377baa9f96d31ae1ce9f6ca525efda85ab223a595439f746768c15fee2f52984e2c0e991b014f076f47915d2
SSDEEP

24576:2bLgddQhfdmMSirYbcMNgef0QeQjGjv+PYvT1E6xHjBtkch6bmy3ZH7GlXHQePfh:2nAQqMSPbcBVQejjT7zJU66bI3C06

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3273) 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
1284	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	2024-08-02_3c53b840fbf1deb8feb0a79b54dd11a9_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	2024-08-02_3c53b840fbf1deb8feb0a79b54dd11a9_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-08-02_3c53b840fbf1deb8feb0a79b54dd11a9_wannacry.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-08-02_3c53b840fbf1deb8feb0a79b54dd11a9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-08-02_3c53b840fbf1deb8feb0a79b54dd11a9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-08-02_3c53b840fbf1deb8feb0a79b54dd11a9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-08-02_3c53b840fbf1deb8feb0a79b54dd11a9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-08-02_3c53b840fbf1deb8feb0a79b54dd11a9_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-08-02_3c53b840fbf1deb8feb0a79b54dd11a9_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-02_3c53b840fbf1deb8feb0a79b54dd11a9_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:916
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1284

C:\Users\Admin\AppData\Local\Temp\2024-08-02_3c53b840fbf1deb8feb0a79b54dd11a9_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-08-02_3c53b840fbf1deb8feb0a79b54dd11a9_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:3012

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
865b8e786da9f125ff66f5d2341fc2e4

SHA1
a7cd247667a82562f360449f596a43b89f6bcf8b

SHA256
a1a2ad6d8214691978f493a6c09e9a4dbe152d1ac451c6bfc19936b64b1128e0

SHA512
e462179a8704e63dca835b447c74b650cae07d7dffa7a0b0d7095611744bf23dc0cc034924110cd202c640179307d7935308957ee2ee939e37220d52ba8f162b

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