wannacry | 112e56e847cba5a99b27f27ef85a139cb0da7698a3f7348e4cb261c49f58008c

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
08-09-2024 08:37

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General

Target

2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe
Size

2.2MB
MD5

f0acf4e35389e8ea767b4861cb6e96fd
SHA1

0e8c75e9df09b65d61882d70c9af55d50c7eef4e
SHA256

112e56e847cba5a99b27f27ef85a139cb0da7698a3f7348e4cb261c49f58008c
SHA512

78c30228db6409c5a707fcbd3f7a7868c08bcfa85906d1394967ce3091c738093a5b74167222f1cb57be34420caec65daa4699dcbf96faa57af8223113ccdc88
SSDEEP

49152:AnpEjbcBVQej31INRx+TSqTdX1HkQo6SAARdhnvn:ApUoBhT1aRxcSUDk36SAEdhvn

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (2630) 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
4860	tasksche.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\eee.exe	tasksche.exe
File created	C:\WINDOWS\tasksche.exe	2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe
File created	C:\Windows\__tmp_rar_sfx_access_check_240655812	tasksche.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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	2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tasksche.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"	2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4532 wrote to memory of 4860	4532	2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe	93
PID 4532 wrote to memory of 4860	4532	2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe	93
PID 4532 wrote to memory of 4860	4532	2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe	93

C:\Users\Admin\AppData\Local\Temp\2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4532
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  PID:4860

C:\Users\Admin\AppData\Local\Temp\2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:764

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
2.0MB

MD5
3ef9a802fe170d03abecbb7695a492fd

SHA1
7bd0d3bf3063b94532abad14fa470a8c1bf5e7cc

SHA256
0ac5ed738cd692bd93e9a989ed3ac0a33e1adb80a94e48d96438f2670f8b0094

SHA512
6fcd7379ad3d28a2b340e15ce8d57733f8eaa2023ab5024a7f747dc4013dd28abdf4440907546b1fb6dff8087b699f055cfabfbc83d16f78cb52307f1c5a5e6b

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