wannacry | ef0e79c89cb69a5cc56d396137ca9d817a89bf08cb8d940d94d58a2423c5dbbf

Analysis

max time kernel
150s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
20-09-2024 07:44

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General

Target

2024-09-20_4b5b3a6239ff958bbe2e079e8b58fa79_wannacry.exe
Size

5.0MB
MD5

4b5b3a6239ff958bbe2e079e8b58fa79
SHA1

485f88b1142030cf91052780a9168c31c0db32c5
SHA256

ef0e79c89cb69a5cc56d396137ca9d817a89bf08cb8d940d94d58a2423c5dbbf
SHA512

1a6da2434266820527b33e9bff54f541c85cf322dfb647da0039d6e2f7ed2e419cbba8b016fd2c95d62638b54799a03010cb1606bdb0c62e0e42ec0b22623bda
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhvxWa9P5IR8yAVp2H:yDqPe1Cxcxk3ZAEUadyR8yc4H

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3363) 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
3252	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	2024-09-20_4b5b3a6239ff958bbe2e079e8b58fa79_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	2024-09-20_4b5b3a6239ff958bbe2e079e8b58fa79_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-20_4b5b3a6239ff958bbe2e079e8b58fa79_wannacry.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-20_4b5b3a6239ff958bbe2e079e8b58fa79_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-09-20_4b5b3a6239ff958bbe2e079e8b58fa79_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-09-20_4b5b3a6239ff958bbe2e079e8b58fa79_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-09-20_4b5b3a6239ff958bbe2e079e8b58fa79_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-09-20_4b5b3a6239ff958bbe2e079e8b58fa79_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-20_4b5b3a6239ff958bbe2e079e8b58fa79_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-20_4b5b3a6239ff958bbe2e079e8b58fa79_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:4484
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:3252

C:\Users\Admin\AppData\Local\Temp\2024-09-20_4b5b3a6239ff958bbe2e079e8b58fa79_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-20_4b5b3a6239ff958bbe2e079e8b58fa79_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:4920

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
6e3f55818db004a5ef6f2ee9f44c84e0

SHA1
76ff043561bd8ca5bd69e14acdabb198093d1b55

SHA256
eea5e42fee349a8133f5231253c52de8fd9a4b948ff2d5cff78b51e571595022

SHA512
9a20bcdc076cc8305807aabdaf37d60580c5f57adcee39402fce1b452f6cc051a81b976fa7d8fa73992d9e1aa3fd1135413d268397a7266dc6d54882fcd93bc9

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