wannacry | 6ed7591e7ddecd13b0dff5dd35f0c31e1bbe272436dfa970cf15fa57bfff6d2c

Analysis

max time kernel
150s
max time network
151s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
29-09-2024 09:42

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General

Target

2024-09-29_7d11c97e49431001ba19926ade825475_wannacry.exe
Size

5.0MB
MD5

7d11c97e49431001ba19926ade825475
SHA1

c704c950fd15ba29e07dd3c7f928416c0ee9790e
SHA256

6ed7591e7ddecd13b0dff5dd35f0c31e1bbe272436dfa970cf15fa57bfff6d2c
SHA512

a1d38b3090a16f3e59750587a64ac19ea6e160103730106351d70d1dbb9f4226cff8be8a312097cc1debd559e1221f2ecbb1e002cd84b6dd227913004a9cf4ef
SSDEEP

98304:Z8qPoBhz1aRxcSUDk36SAEdhvxWa9P593R8:Z8qPe1Cxcxk3ZAEUadzR8

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3330) 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
2792	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	2024-09-29_7d11c97e49431001ba19926ade825475_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-29_7d11c97e49431001ba19926ade825475_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	2024-09-29_7d11c97e49431001ba19926ade825475_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-29_7d11c97e49431001ba19926ade825475_wannacry.exe

Modifies data under HKEY_USERS 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-29_7d11c97e49431001ba19926ade825475_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-29_7d11c97e49431001ba19926ade825475_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-29_7d11c97e49431001ba19926ade825475_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1964
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2792

C:\Users\Admin\AppData\Local\Temp\2024-09-29_7d11c97e49431001ba19926ade825475_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-29_7d11c97e49431001ba19926ade825475_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1444

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
6b6762ccfa833166d00f73861674dc58

SHA1
c021243946eb5e867a2118dae57b66ca38b52952

SHA256
00f193a04afd76c65054359440f3f23dfa024d24385a3174cb00bf1ce54063cd

SHA512
02055ee597eade008c99b398db1271fdb6b9b036b5d0dfbe3c90a5ed649d97cfe58cb677f270240eb273d12f6a557296f02ec4eed3048a668df44fdc91127811

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