wannacry | fd6da4c01a693f10392af2468c3f4f182248602f0867107fa5ae6f539173ddeb

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
15/10/2024, 18:47

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General

Target

2024-10-15_7873b11b59ed305af541203f994ab8b8_wannacry.exe
Size

3.6MB
MD5

7873b11b59ed305af541203f994ab8b8
SHA1

b3ae1000ceda2383aad232e440b6a7728b815679
SHA256

fd6da4c01a693f10392af2468c3f4f182248602f0867107fa5ae6f539173ddeb
SHA512

e5b2ca72004c06036dc9509e35d3046dd5d896a70f480643d327552309fcd35b214e52f85b2aaea6993052da02be64a5f38ba635f0326998e7e3fea6505f0954
SSDEEP

98304:Z8qPoBhz1aRxcSUDk36SAEdhvxWa9b593R8yAVp2HI:Z8qPe1Cxcxk3ZAEUadzR8yc4HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3327) 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
2832	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	2024-10-15_7873b11b59ed305af541203f994ab8b8_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-15_7873b11b59ed305af541203f994ab8b8_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	2024-10-15_7873b11b59ed305af541203f994ab8b8_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-15_7873b11b59ed305af541203f994ab8b8_wannacry.exe

Modifies data under HKEY_USERS 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-15_7873b11b59ed305af541203f994ab8b8_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-15_7873b11b59ed305af541203f994ab8b8_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-15_7873b11b59ed305af541203f994ab8b8_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2372
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2832

C:\Users\Admin\AppData\Local\Temp\2024-10-15_7873b11b59ed305af541203f994ab8b8_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-15_7873b11b59ed305af541203f994ab8b8_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2688

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
f40a16c4b229e634cc946c9a2f0026ab

SHA1
b0f68a95bbc03cd6eef3840f347e71b22a897e13

SHA256
09f772736623d27e92c485c560ef7141618d765d6c5d88b1986a862debab012c

SHA512
424bb1d5960e6b29fb155682a598f826b7f590400878a574b2b534170724e6b4a3fa6a11949b6b64a450d9edb0610a31e2bfde46ad5fabc89166008e138483ba

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