wannacry | 162b17147eb863250d401a4c89baf8e7325456dd5406fbdca53538a8dfd6248e

Analysis

max time kernel
150s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
11-09-2024 20:02

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

db203ae97938b49c4d91cbb8a8f499f4_JaffaCakes118.dll
Size

5.0MB
MD5

db203ae97938b49c4d91cbb8a8f499f4
SHA1

cde7c674f61b2ddc7da3a405f8d7e717b7797787
SHA256

162b17147eb863250d401a4c89baf8e7325456dd5406fbdca53538a8dfd6248e
SHA512

2d3a1dab1ea7b9ed9e7f45086b1a1e166f32545bdc931a2b18df681cedf73f2f6662f74dd7f19250a23e76378d5fd7f859667ba421083e88b0d31478d0626435
SSDEEP

49152:SnAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9c:+DqPoBhz1aRxcSUDk36SAEdhvxWa9c

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3324) 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 3 IoCs

pid	Process
1540	mssecsvc.exe
4432	mssecsvc.exe
3620	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 Windows directory 2 IoCs

description	ioc	Process
File created	C:\WINDOWS\mssecsvc.exe	rundll32.exe
File created	C:\WINDOWS\tasksche.exe	mssecsvc.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mssecsvc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mssecsvc.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	mssecsvc.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4784 wrote to memory of 4588	4784	rundll32.exe	83
PID 4784 wrote to memory of 4588	4784	rundll32.exe	83
PID 4784 wrote to memory of 4588	4784	rundll32.exe	83
PID 4588 wrote to memory of 1540	4588	rundll32.exe	84
PID 4588 wrote to memory of 1540	4588	rundll32.exe	84
PID 4588 wrote to memory of 1540	4588	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\db203ae97938b49c4d91cbb8a8f499f4_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4784
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\db203ae97938b49c4d91cbb8a8f499f4_JaffaCakes118.dll,#1
  2⤵
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4588
- - C:\WINDOWS\mssecsvc.exe
    C:\WINDOWS\mssecsvc.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    PID:1540
  - - C:\WINDOWS\tasksche.exe
      C:\WINDOWS\tasksche.exe /i
      4⤵
      Executes dropped EXE
      PID:3620

C:\WINDOWS\mssecsvc.exe
C:\WINDOWS\mssecsvc.exe -m security
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:4432

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

Loading Replay Monitor...

Downloads

C:\Windows\mssecsvc.exe

Filesize
3.6MB

MD5
d0feb8e907f1d8dd96ec26adb618f91c

SHA1
c0074f5ee3f44e94497cd051dbac286d114bfa13

SHA256
9aa8cadf116155d66a8f15b7bda017c07ecb18ebc54a0ef786efbd1fda8e335e

SHA512
26d1a98817db099b94335d578f9ab98ca64470148709ed8d7d18b97aad331ec35b5f6641c3d241ef73e093242d493827104b212e2cc7b5734b48b6cada20e166

Download Submit
C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
eb4c72829a42a0d5c8539cd35dbbc0d9

SHA1
3636374353964c1db51b32dd9b2326d2224f5e4f

SHA256
426e594563b1bb1bf822a602390464a5354ba2eb2f3bbf69fca55df74779a07e

SHA512
2792282c4bab764d6172655289351a088422f40a0df031e5d1dc9f25cdfa4a456304a9d82a8df49bd9c5e7b13ec3e5d586848aabd6a59a633765104777aab252

Download Submit