wannacry | 2aa344bde06d1dafbff2915927b03c39502fcfd32d92f915d4f4917c98394191

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
12-10-2024 03:41

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General

Target

2024-10-12_4add0c33ad97fba562074edafe69c77a_wannacry.exe
Size

3.6MB
MD5

4add0c33ad97fba562074edafe69c77a
SHA1

b77403a1db59372eeb6ca386c8d735c8cb7b2ef2
SHA256

2aa344bde06d1dafbff2915927b03c39502fcfd32d92f915d4f4917c98394191
SHA512

5554d4495717ac82c41861a249cecebd04e128dbe2fab67eb7e539fe4a4b27086b0729415fcd069ce3474e9763aa9235110e78693c3d3c12d300f57a00348ba9
SSDEEP

24576:XbLgdeQhfdmMSirYbcMNgef0QeQjG/D8kIqRYoAdNLKz6626M+vbOSSqTPVXXJTs:XnjQqMSPbcBVQej/1INRx+TSqTdX5nI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3148) 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
2396	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	2024-10-12_4add0c33ad97fba562074edafe69c77a_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-12_4add0c33ad97fba562074edafe69c77a_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	2024-10-12_4add0c33ad97fba562074edafe69c77a_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-12_4add0c33ad97fba562074edafe69c77a_wannacry.exe

Modifies data under HKEY_USERS 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_4add0c33ad97fba562074edafe69c77a_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-12_4add0c33ad97fba562074edafe69c77a_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_4add0c33ad97fba562074edafe69c77a_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1952
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2396

C:\Users\Admin\AppData\Local\Temp\2024-10-12_4add0c33ad97fba562074edafe69c77a_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-12_4add0c33ad97fba562074edafe69c77a_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1784

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
e3dfed861e9aea0ec25cc620ac93b219

SHA1
8b09291acebeea1f0efd793cc5bcc1e9db83e810

SHA256
6a95c6133a749c770bfd1e4fd0de5ad804252befd8111e082458e633db621ea2

SHA512
15180ec271c79bc21e9c354a4afe4fff47dc6f676e8876aec1c892f144f17515e3b05a1554ecbe62344842974654aee748f6ba4b77e0ba143803b6cd954b8fc5

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