wannacry | e71c0559b2ac7647a14f1bff981b743b2493259aa3308c4d4b530e133901c93b

Analysis

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

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
12-12-2024 11:52

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General

Target

2024-12-12_8e5d8f9318f5257ca0424b7c689c6239_wannacry.exe
Size

5.0MB
MD5

8e5d8f9318f5257ca0424b7c689c6239
SHA1

0c9837ee51b43edec88f5b28e68c812b8c1f8be9
SHA256

e71c0559b2ac7647a14f1bff981b743b2493259aa3308c4d4b530e133901c93b
SHA512

9a45480b82e6533fdf0386071abcd72348af44da8d4ce769b962539f16cd4fdf393da95c8d498631b5ef1858a8db804fd608ead3398d209cc8504e3d376e8321
SSDEEP

24576:VbLgdeQhfdmMSirYbcMNgef0QeQjG/D8kIqRYoAdNLKz6626Wo:VnjQqMSPbcBVQej/1INRAW

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 (3141) 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
2976	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	2024-12-12_8e5d8f9318f5257ca0424b7c689c6239_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-12-12_8e5d8f9318f5257ca0424b7c689c6239_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	2024-12-12_8e5d8f9318f5257ca0424b7c689c6239_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-12_8e5d8f9318f5257ca0424b7c689c6239_wannacry.exe

Modifies data under HKEY_USERS 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-12_8e5d8f9318f5257ca0424b7c689c6239_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-12_8e5d8f9318f5257ca0424b7c689c6239_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-12_8e5d8f9318f5257ca0424b7c689c6239_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2112
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2976

C:\Users\Admin\AppData\Local\Temp\2024-12-12_8e5d8f9318f5257ca0424b7c689c6239_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-12-12_8e5d8f9318f5257ca0424b7c689c6239_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2904

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
67153d6b70cda3ec94d0ef9721ce4c44

SHA1
a1fe36bd769764d93a0293f57b4a086a1df8b277

SHA256
dbc71b59f097675c2b468e112e9ed506e8542178581ce8d32a736b0996e6b6ff

SHA512
d4cf068bff9f91d082168af32c60a21eacafb678b0b87aefb2d8322969358745a4b2b2a7c7d25fc76f61fcfaf34a939f11ffc25d8e37b8ede83ed40edfc5f00f

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