wannacry | 95339d3c4a59b43b301383a0295f47da2236c9ed459b36a8472588a87a3ce6d1

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
16-09-2024 18:10

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General

Target

20240916aa5bc032da70494dd21a5c90fb4f1185wannacry.exe
Size

5.0MB
MD5

aa5bc032da70494dd21a5c90fb4f1185
SHA1

396089388bcb4225127b84e9d393de73609920df
SHA256

95339d3c4a59b43b301383a0295f47da2236c9ed459b36a8472588a87a3ce6d1
SHA512

8a1155a3b5d45603d7f798c0392af3eea6a8e28c9774dbb8dc3bddf5ffd308d452ed8ea1847f9910dad77f533952de9b7d5d08e8a9107a9bc85298e0b6076a06
SSDEEP

12288:GwbLgPluxQhMbaIMu7L5NVErCA4z2g6rTcbckPU82:VbLgdeQhfdmMSirYbcM

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3281) 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
2704	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	20240916aa5bc032da70494dd21a5c90fb4f1185wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	20240916aa5bc032da70494dd21a5c90fb4f1185wannacry.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	20240916aa5bc032da70494dd21a5c90fb4f1185wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	20240916aa5bc032da70494dd21a5c90fb4f1185wannacry.exe

Modifies data under HKEY_USERS 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	20240916aa5bc032da70494dd21a5c90fb4f1185wannacry.exe

C:\Users\Admin\AppData\Local\Temp\20240916aa5bc032da70494dd21a5c90fb4f1185wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\20240916aa5bc032da70494dd21a5c90fb4f1185wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1152
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2704

C:\Users\Admin\AppData\Local\Temp\20240916aa5bc032da70494dd21a5c90fb4f1185wannacry.exe
C:\Users\Admin\AppData\Local\Temp\20240916aa5bc032da70494dd21a5c90fb4f1185wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2544

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
1326f4f05c1bb147ae077ae8283b36d8

SHA1
d37276333bd6ca555f652014a6cbea41bce5a8ae

SHA256
43226dd2da67d6202ce26219d212493d353017ad1e551fda41c40cb535f6690d

SHA512
d7ee1060582da5cfe2e4b8a346aee5b0beb6bdafbb14dccf54cb931c55f9352047d1a55fc6f36d8d15ed2ac4861f9d76410ca425c2521fa5c536eb78b987a944

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