wannacry | a172fa16bf9b3c69868b8e9db4a3c9c0e40da552c6c978d667d2daed05474296

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
22-08-2024 07:29

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General

Target

2024-08-22_18fbef29b034e81460b9886bf81fabd3_wannacry.exe
Size

5.0MB
MD5

18fbef29b034e81460b9886bf81fabd3
SHA1

6a083a304ce68d5e1d7aa8582d49f41028b36f40
SHA256

a172fa16bf9b3c69868b8e9db4a3c9c0e40da552c6c978d667d2daed05474296
SHA512

11ae109368007395ba3f367dfc87f8e069f238d9c9798ce1b31ff860755066480ad6c970942ffefe7070151af9ad642f3a54a7471dac5f90a9cf04ba4124142b
SSDEEP

24576:2bLgddQhfdmMSirYbcMNgef0QeQjG/D8kIqRYoAdNL:2nAQqMSPbcBVQej/1IN

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3373) 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
3132	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	2024-08-22_18fbef29b034e81460b9886bf81fabd3_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	2024-08-22_18fbef29b034e81460b9886bf81fabd3_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-08-22_18fbef29b034e81460b9886bf81fabd3_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\UNCAsIntranet = "1"	2024-08-22_18fbef29b034e81460b9886bf81fabd3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-08-22_18fbef29b034e81460b9886bf81fabd3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-08-22_18fbef29b034e81460b9886bf81fabd3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-08-22_18fbef29b034e81460b9886bf81fabd3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-08-22_18fbef29b034e81460b9886bf81fabd3_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-08-22_18fbef29b034e81460b9886bf81fabd3_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-22_18fbef29b034e81460b9886bf81fabd3_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2396
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:3132

C:\Users\Admin\AppData\Local\Temp\2024-08-22_18fbef29b034e81460b9886bf81fabd3_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-08-22_18fbef29b034e81460b9886bf81fabd3_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:3048

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
b52e17e496f3aa650df145abcc791b21

SHA1
91497a92d8e0bf6f9a42649d0e88471672328037

SHA256
87c5d2a9e60641a02f195eeb4f83eba15f87a68b961e8df0013d325e8da56488

SHA512
2a670f7e869f763d1c210c5494fb52ab99cce5aeac094ffc518d633796b18457d2794049332520ce17512c09c8f69b297c709a0c85bfda5450cb7aaf72e53655

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