wannacry | 11b94af7d326c3ebd1aac5c6b8efcdc46a13e5937766f30614747c2a499410ff

Analysis

max time kernel
153s
max time network
161s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
08-10-2024 12:30

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General

Target

2024-10-08_b1f48d7b3a0b5455c094880280b3e732_wannacry.exe
Size

5.0MB
MD5

b1f48d7b3a0b5455c094880280b3e732
SHA1

75320a1cb05ad5d20b967633d323c49db7b8a554
SHA256

11b94af7d326c3ebd1aac5c6b8efcdc46a13e5937766f30614747c2a499410ff
SHA512

24dfc4575df4af78e54323e7f8d5d5dacb417fca18195a380bead05d8ada8e3c7dccb732bbbc0610ab5ddbac3763dc41bf8457f0dfb2470461a0be11d58add97
SSDEEP

98304:Z8qPoBhz1aRxcSUDk36SAEdhvxWa9b593R8yAVp2H:Z8qPe1Cxcxk3ZAEUadzR8yc4H

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3212) 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
2920	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	2024-10-08_b1f48d7b3a0b5455c094880280b3e732_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-08_b1f48d7b3a0b5455c094880280b3e732_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	2024-10-08_b1f48d7b3a0b5455c094880280b3e732_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-08_b1f48d7b3a0b5455c094880280b3e732_wannacry.exe

Modifies data under HKEY_USERS 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-08_b1f48d7b3a0b5455c094880280b3e732_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-08_b1f48d7b3a0b5455c094880280b3e732_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-08_b1f48d7b3a0b5455c094880280b3e732_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2988
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2920

C:\Users\Admin\AppData\Local\Temp\2024-10-08_b1f48d7b3a0b5455c094880280b3e732_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-08_b1f48d7b3a0b5455c094880280b3e732_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2352

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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