wannacry | 4c724b39e1edd36df8ad77cc236fc637dee2ecc458abf59a7c1197d2fd411308

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
29-11-2024 09:33

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General

Target

2024-11-29_595fe4be450fd241c248b86cdfff51c3_wannacry.exe
Size

3.6MB
MD5

595fe4be450fd241c248b86cdfff51c3
SHA1

f86e1b27cde8e560a4d0f78319fde9230fbd7b35
SHA256

4c724b39e1edd36df8ad77cc236fc637dee2ecc458abf59a7c1197d2fd411308
SHA512

f208b55ed416bba89259523e376aab97ee73b1ee76e02f307abea5e10efcd69cf529a206b6f9f1a353ac52a0ecb6aee6a9ea9dccfbe54259af879d46e29dd70b
SSDEEP

98304:Z8qPoBhz1aRxcSUDk36SAiOLZSPebdWOC:Z8qPe1Cxcxk3ZAiOLhbd3C

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 (3244) 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
2752	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	2024-11-29_595fe4be450fd241c248b86cdfff51c3_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-11-29_595fe4be450fd241c248b86cdfff51c3_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	2024-11-29_595fe4be450fd241c248b86cdfff51c3_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-29_595fe4be450fd241c248b86cdfff51c3_wannacry.exe

Modifies data under HKEY_USERS 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-29_595fe4be450fd241c248b86cdfff51c3_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-29_595fe4be450fd241c248b86cdfff51c3_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-29_595fe4be450fd241c248b86cdfff51c3_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2088
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2752

C:\Users\Admin\AppData\Local\Temp\2024-11-29_595fe4be450fd241c248b86cdfff51c3_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-29_595fe4be450fd241c248b86cdfff51c3_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1812

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
34fac614d49bd9ccaf7db2fd38e3601b

SHA1
501074a1468e5a58997be50254dbaf50992eee81

SHA256
4279b2a77ab5b771649035eb17e9033a918d6d78bab2cd2c1c48281418a3183d

SHA512
311fa061686e3853ab65dabc926fd0392d378b89f188d4df21712cf12562a3c9b7a13c0e264f85313c1cdeb0eb1e4af4c642e21e689cf422e02efd5390f6749b

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