wannacry | 406838b37307d2a8dd19c7700868114ac272576aab8c7038927a5912f2608a8b

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07-12-2024 10:46

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General

Target

2024-12-07_447758bb751cccf07f7aa8e62261b3ae_wannacry.exe
Size

5.0MB
MD5

447758bb751cccf07f7aa8e62261b3ae
SHA1

d514813ca0ba38c70f009c76a1738e5389ab5acf
SHA256

406838b37307d2a8dd19c7700868114ac272576aab8c7038927a5912f2608a8b
SHA512

8a93df15c2335c00c469ca1946f799b3853215c745dfc876211a30da6a20e72dd5c3c21e0e1d9ae529898986ee855c9b8814959a4ede2534e6c0356ae598ddf0
SSDEEP

49152:XnjQLMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnv:X8LPoBhz1aRxcSUDk36SAEdhv

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Wannacry family
wannacry
Contacts a large (3247) 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
2836	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	2024-12-07_447758bb751cccf07f7aa8e62261b3ae_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-12-07_447758bb751cccf07f7aa8e62261b3ae_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	2024-12-07_447758bb751cccf07f7aa8e62261b3ae_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-07_447758bb751cccf07f7aa8e62261b3ae_wannacry.exe

Modifies data under HKEY_USERS 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-07_447758bb751cccf07f7aa8e62261b3ae_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-07_447758bb751cccf07f7aa8e62261b3ae_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-07_447758bb751cccf07f7aa8e62261b3ae_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2424
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2836

C:\Users\Admin\AppData\Local\Temp\2024-12-07_447758bb751cccf07f7aa8e62261b3ae_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-12-07_447758bb751cccf07f7aa8e62261b3ae_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2696

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
635e4ea3ef784acb1092de6d630b5e4d

SHA1
cc6be28b0bdbd74c30213e880e5fe1ee53da8cbe

SHA256
7ca03e38d26098a013b3e5eb88280bce1ee66fa21643e6419e6aa410e37228df

SHA512
3466fa82e93ca076d7b19bb14028aac5dfee4051e7fe6c61820a0a5307705787e34bd57d4d036aee5d0a490d64090948943a746b9e74af38d219213b090af71a

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