wannacry | ddb7d6d6f81778cd3495173dc3d1e4d2f2a3d353078fc331430f96938f25892b

Analysis

max time kernel
150s
max time network
151s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
03-08-2024 12:47

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General

Target

2024-08-03_481dac02b962066fd4ce86fdd0a1cc6f_wannacry.exe
Size

5.0MB
MD5

481dac02b962066fd4ce86fdd0a1cc6f
SHA1

e7219474685d81770d7f89ee072ed968db024bad
SHA256

ddb7d6d6f81778cd3495173dc3d1e4d2f2a3d353078fc331430f96938f25892b
SHA512

53bd01ba9a38879c4ecb3beb1b9e0e843b281ef7dc53250426e8fe360071482ad80c82d58acda4abbf4a6436b40bf6c8e25276599298f7aecf569953ea975fd0
SSDEEP

98304:Z8qPoBhz1aRxcSUDk36SAEdhvp3R8yAVp2H:Z8qPe1Cxcxk3ZAE1R8yc4H

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3166) 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
2468	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 System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2024-08-03_481dac02b962066fd4ce86fdd0a1cc6f_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-08-03_481dac02b962066fd4ce86fdd0a1cc6f_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_481dac02b962066fd4ce86fdd0a1cc6f_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-08-03_481dac02b962066fd4ce86fdd0a1cc6f_wannacry.exe

Modifies data under HKEY_USERS 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-08-03_481dac02b962066fd4ce86fdd0a1cc6f_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-08-03_481dac02b962066fd4ce86fdd0a1cc6f_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-03_481dac02b962066fd4ce86fdd0a1cc6f_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2036
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2468

C:\Users\Admin\AppData\Local\Temp\2024-08-03_481dac02b962066fd4ce86fdd0a1cc6f_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-08-03_481dac02b962066fd4ce86fdd0a1cc6f_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2244

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
073c04fc3344234e4c1072ad43454ddc

SHA1
25a670db8a52e935c3939c36b3be6c96dc517cae

SHA256
802c27ec469dfe6daa888b878c2b9bdf7ac0362ec6b9ad23d0dfb9f3b9aedd27

SHA512
6da06c4dae525781c6c79ba748d4ba422a823b53b84afb7ff7ffb3d7b36edd1ab7a06ea6c9afd59d4fb0c116cf5f6e78de1134e6e3fb5c064eb146f4c08fb3fd

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