wannacry | 7d6810aa3ce7bccdcf0d46bc549a0fb0569f4b40e1e8c9b7e8fb3f75eebe3fc8

Resubmissions

26/10/2026, 22:50

261026-2sm3msg12110

26/10/2026, 19:43

261026-yflr9sv14n10

Analysis

user interaction
yes
max time kernel
27s
max time network
30s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
26/10/2026, 22:50

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General

Target
7d6810aa3ce7bccdcf0d46bc549a0fb0569f4b40e1e8c9b7e8fb3f75eebe3fc8.dll
Size 5.0MB
Sample261026-2sm3msg121
SHA256 7d6810aa3ce7bccdcf0d46bc549a0fb0569f4b40e1e8c9b7e8fb3f75eebe3fc8
MD5 7c4d35d98b5d78879757df9948c81f93
SHA1 2c15dac64573e749828ad141e48c7833177b3d68
SHA512 b53d25916fe05903566961f0ae6c2e8d4bad26cd6cb45ba49e1bba0529a0f0bfef018dfa48fbc8ef1d75a43e3562882b21dccff190615a601688c941e36ab2f7
SSDEEP 98304:TDqPoBhz1aRxcSUDk36SAEdhvRP593R8yAVp2H:TDqPe1Cxcxk3ZAENzR8yc4H
TLSH
T17E362314A2EC6678F2B21EF510778B1527B73D45AEAB860F0790915B0C33F5AEEE0B15
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery wannacry ransomware worm

Malware Config

Signatures

Family: Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry

Executes dropped EXE 3 IoCs

pid	Process
4476	mssecsvc.exe
2636	mssecsvc.exe
4500	tasksche.exe

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

Reads the TCP/IP host and domain name from the registry 1 TTPs 4 IoCs

The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	mssecsvc.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	mssecsvc.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	mssecsvc.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	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 2 IoCs

description	pid	Process	procid_target
PID 4952 wrote to memory of 4196	4952	rundll32.exe	89
PID 4196 wrote to memory of 4476	4196	rundll32.exe	90

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7d6810aa3ce7bccdcf0d46bc549a0fb0569f4b40e1e8c9b7e8fb3f75eebe3fc8.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4952
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\7d6810aa3ce7bccdcf0d46bc549a0fb0569f4b40e1e8c9b7e8fb3f75eebe3fc8.dll,#1
  2⤵
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4196
- - C:\WINDOWS\mssecsvc.exe
    C:\WINDOWS\mssecsvc.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Windows directory
    - Reads the TCP/IP host and domain name from the registry
    - System Location Discovery: System Language Discovery
    PID:4476
  - - C:\WINDOWS\tasksche.exe
      C:\WINDOWS\tasksche.exe /i
      4⤵
      Executes dropped EXE
      PID:4500

C:\WINDOWS\mssecsvc.exe
C:\WINDOWS\mssecsvc.exe -m security
1⤵
- Executes dropped EXE
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2636

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

mssecsvc.exe

Path C:\Windows\mssecsvc.exe
Size 3.6MB
SHA256 2a1f15255b75a7a4d77b3ece5ec8ebdc439a726a453485c4346fd5bde850d69d
MD5 dafd2e2eb1b8f2d82ffd6e249ff15478
SHA1 390b6712dd6250b0763f883252b014df6103d6f4
SHA512 3753b70865033554a91a6670d6e5a0f3dec5d32598930de0e8ad7ece2f224baf2e666bee55366af178097a233d1229aeabd1ce4b12c90b766664674ae6740d09
SSDEEP 98304:XDqPoBhz1aRxcSUDk36SAEdhvRP593R8yAVp2HI:XDqPe1Cxcxk3ZAENzR8yc4HI
TLSH
T106062314A2EC6768F2B21EF510778B1527B73D45AEAB860F0790915B0C33F59EEE0B19
MD5 SHA1 SHA512 SSDEEP TLSH

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tasksche.exe

Path C:\Windows\tasksche.exe
Size 3.4MB
SHA256 bc31a4748e4812e85ede7866a169a1c967f0c4dc8aa853c8f1262fad7a29282a
MD5 f4349f620223e7fd12931abc0fd8c1f1
SHA1 3946f96ca49eb6fcb83b2cce0303b68853652856
SHA512 9af336ff47d7c3db00c9ef70d8d5cea9c729ec2aefa9ef357948eaae6e340b7162c6aeff233a68be5ba1c3077cae3bc39a1ef860e45575a33f84bda31635b967
SSDEEP 98304:QqPoBhz1aRxcSUDk36SAEdhvRP593R8yAVp2Hj:QqPe1Cxcxk3ZAENzR8yc4Hj
TLSH
T10BF53364A2E47728F3F21EF61137871517663A51EE9B9A5E0290508F0C32F5ECFE1B68
MD5 SHA1 SHA512 SSDEEP TLSH