wannacry | 84cfbbfa3a2685b4fbf9558a3ab91df23b6da7169c324441b49136f385f4e812

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
11-10-2024 14:22

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General

Target

2024-10-11_c2f5fb0ea897caa409f44c28c20449bb_wannacry.exe
Size

5.0MB
MD5

c2f5fb0ea897caa409f44c28c20449bb
SHA1

d3be17cb9a064f1a42baa7e23136c5ad35daed50
SHA256

84cfbbfa3a2685b4fbf9558a3ab91df23b6da7169c324441b49136f385f4e812
SHA512

7cc759d285d13857e9682de3cf84d16a6ab4d9b97df376203232df2fdc480dd43e42f0bb643e8fa14cc71db42488b79713374541651968baba531644bee0254d
SSDEEP

98304:Z8qPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAw2:Z8qPe1Cxcxk3ZAEUadzR8y

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3237) 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
1136	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	2024-10-11_c2f5fb0ea897caa409f44c28c20449bb_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-11_c2f5fb0ea897caa409f44c28c20449bb_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	2024-10-11_c2f5fb0ea897caa409f44c28c20449bb_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-11_c2f5fb0ea897caa409f44c28c20449bb_wannacry.exe

Modifies data under HKEY_USERS 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-11_c2f5fb0ea897caa409f44c28c20449bb_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-11_c2f5fb0ea897caa409f44c28c20449bb_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-11_c2f5fb0ea897caa409f44c28c20449bb_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:3048
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1136

C:\Users\Admin\AppData\Local\Temp\2024-10-11_c2f5fb0ea897caa409f44c28c20449bb_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-11_c2f5fb0ea897caa409f44c28c20449bb_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2552

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
eb892ca1f2c02d113ab8b52d3698b1b6

SHA1
2d997458c78c75c09f0ff0e1854f688cbf108a7a

SHA256
1d08e1fcf276641f510e7e63d762ddeee2cdc551aa9dcc6b0b8f5b8779c79c81

SHA512
0120b7daf1d34680b66a9848356a35c9d238eb615f42d2056a814a44d4c6d56f21e38bff095d62121c8c52a19de76720d2303a2065f38a6247988ab81afae586

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