wannacry | 2a3e56e54485fd90e8e27cfa83953c78d3aa6afd2426e11aa8c46b07877ab416

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
26-09-2024 21:09

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General

Target

2024-09-26_639c25eed03a1311f732f0138dc6c757_wannacry.exe
Size

3.6MB
MD5

639c25eed03a1311f732f0138dc6c757
SHA1

8aa6c610b56c1aaaa169eae4a8c737228d9ee464
SHA256

2a3e56e54485fd90e8e27cfa83953c78d3aa6afd2426e11aa8c46b07877ab416
SHA512

939cb13a2b5f5b19b5aee958096c3d412fb3f49d7646ba1340b54542b354aa6a633c492101b21145310dd47d0dc45169e65f463e614ae373929fe02e13460bc5
SSDEEP

49152:2nAQq3+D7VQej0W8Rx+TSqTdX1Hpe7PGvxJM0H9FPG/iEau3R8yAH1Furi:yDqO7hJ8RxcSUDppxWa9U3R8yAVEi

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
4312	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 Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-26_639c25eed03a1311f732f0138dc6c757_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	2024-09-26_639c25eed03a1311f732f0138dc6c757_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-26_639c25eed03a1311f732f0138dc6c757_wannacry.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-26_639c25eed03a1311f732f0138dc6c757_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-09-26_639c25eed03a1311f732f0138dc6c757_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-09-26_639c25eed03a1311f732f0138dc6c757_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-09-26_639c25eed03a1311f732f0138dc6c757_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-09-26_639c25eed03a1311f732f0138dc6c757_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-26_639c25eed03a1311f732f0138dc6c757_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-26_639c25eed03a1311f732f0138dc6c757_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1468
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:4312

C:\Users\Admin\AppData\Local\Temp\2024-09-26_639c25eed03a1311f732f0138dc6c757_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-26_639c25eed03a1311f732f0138dc6c757_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2176

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
218cdd5b3d53e4fcc7dd2b58c0dcaa90

SHA1
36736b44a7cebc194d8943f93083ab6a77a80f50

SHA256
3fd8878e74e3de49dc0c24a03e2104d5c8bfc1291f832805f6582b3d5dc4e927

SHA512
669f6388b07b1b4538eb3032db95add08232ddbb5881927dff5795a99bc464bafd53fa89be75845bf6172324d50d4202635a27976bb35c994323648096cd2976

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