wannacry | a2a8dc3119e8feb6df373c8eab6f139db156e3847032b5665fe8430a8b78dd83

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
03-08-2024 13:49

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General

Target

2024-08-03_cfce921c45b8819bfc6ee9850221e445_wannacry.exe
Size

5.0MB
MD5

cfce921c45b8819bfc6ee9850221e445
SHA1

0224d594a2acf3f47c9fe773defab64802d0a1a2
SHA256

a2a8dc3119e8feb6df373c8eab6f139db156e3847032b5665fe8430a8b78dd83
SHA512

aed2c0bc2454d0c239b3a44d1d0e56f80ea5635bb66a59c33a99c5a215dd321f94b63191149da1eb4f57402c9cff3e63fe62832647099c82ad3147f6692b1d27
SSDEEP

24576:2bLgddQhfdmMSirYbcMNgef0QeQjG/D8kIqRYoAdNLKz6626M+vbOSSqTPVXmiH:2nAQqMSPbcBVQej/1INRx+TSqTdX1H

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3203) 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
32	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	2024-08-03_cfce921c45b8819bfc6ee9850221e445_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	2024-08-03_cfce921c45b8819bfc6ee9850221e445_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-08-03_cfce921c45b8819bfc6ee9850221e445_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\AutoDetect = "0"	2024-08-03_cfce921c45b8819bfc6ee9850221e445_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-08-03_cfce921c45b8819bfc6ee9850221e445_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-08-03_cfce921c45b8819bfc6ee9850221e445_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-08-03_cfce921c45b8819bfc6ee9850221e445_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-08-03_cfce921c45b8819bfc6ee9850221e445_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-08-03_cfce921c45b8819bfc6ee9850221e445_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-03_cfce921c45b8819bfc6ee9850221e445_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:4276
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:32

C:\Users\Admin\AppData\Local\Temp\2024-08-03_cfce921c45b8819bfc6ee9850221e445_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-08-03_cfce921c45b8819bfc6ee9850221e445_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:4948

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
4a47d4285f157905eebe09f9574200d0

SHA1
b0b09eb942b0af3ad6f3c6eb59635fefba34f3cf

SHA256
a1cad97ed2c1285f3744dcf89be5f8e8f0b290741662496a2308c6da58f30dc0

SHA512
4d2397bbe7e2f6361e192f1516247ae62184e8205f50790ef96863cadaadb91956a6bbe0a39e97e78db107f4ad141e5525759d119a55779b98737c2965f7bdbd

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