wannacry | 6c8f85db6604cf701c5fbe62c872e21625a51f7edb407f813eb67918722d33b7

Analysis

max time kernel
150s
max time network
154s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260710-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
29/07/2026, 01:11

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General

Target
414a3594e4a822cfb97a4326e185f620.dll
Size 5.0MB
Sample260729-bkcntsdc84
SHA256 6c8f85db6604cf701c5fbe62c872e21625a51f7edb407f813eb67918722d33b7
MD5 414a3594e4a822cfb97a4326e185f620
SHA1 5f1e7bc375dd8093fa987af0771e72389dad473b
SHA512 64f223e762c17b750790a8ec483319e851e317164d662e8d1d56e8b3551e297f15e51ef52dfdc350d5f9f29ae4ad146501c343778671dbb934fc0116b50ceaa2
SSDEEP 12288:yvbLgPlu+QhMbaIMu7L5NVErCA4z2g6rTcbckPU82900Ve7zw+K+D:SbLgddQhfdmMSirYbcMNgef0
TLSH
T19836235A766C91FCC11A6230A0634936EAB77C6A22BD970F8F948B520D13750BF74F47
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
Contacts a large (3316) 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
4896	mssecsvc.exe
5580	mssecsvc.exe
2456	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	mssecsvc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mssecsvc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.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 808 wrote to memory of 4932	808	rundll32.exe	89
PID 4932 wrote to memory of 4896	4932	rundll32.exe	90

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\414a3594e4a822cfb97a4326e185f620.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:808
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\414a3594e4a822cfb97a4326e185f620.dll,#1
  2⤵
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4932
- - C:\WINDOWS\mssecsvc.exe
    C:\WINDOWS\mssecsvc.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    PID:4896
  - - C:\WINDOWS\tasksche.exe
      C:\WINDOWS\tasksche.exe /i
      4⤵
      Executes dropped EXE
      PID:2456

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:5580

Network

MITRE ATT&CK Enterprise v16

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

mssecsvc.exe

Path C:\Windows\mssecsvc.exe
Size 3.6MB
SHA256 55bc52ead4c668b4dad978bebd80821a68eccd36b3927072a5d113cd5d79a27a
MD5 e8089341ee0442a2ecf82e4b70829143
SHA1 cec9a0b3c2914b49bf0b5dbbd3b1907cb8a6b578
SHA512 738f731a3e118245c092a99e6822bb6e3f2294bcf4ec28ff4bbf43a98a0567d8d8d7b9ffff1bb5f7a9162335427c2e682a5ad48c9f9413818cd3baf81c6f0862
SSDEEP 12288:GvbLgPlu+QhMbaIMu7L5NVErCA4z2g6rTcbckPU82900Ve7zw+K+D:2bLgddQhfdmMSirYbcMNgef0
TLSH
T10C06235A766C91FCC11A6234A0634936EAB37C6A22BD970F8B94CB520D13790BF74F47
MD5 SHA1 SHA512 SSDEEP TLSH

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tasksche.exe

Path C:\Windows\tasksche.exe
Size 3.4MB
SHA256 c5d0817617551bf5bae966e0c95ad66a1f536633b44b0eeb09ae3ee33ac67980
MD5 7bffd6dfd8e5c5fe55577df5d87559e5
SHA1 3536b3d1fa74db8619e305ff4bc772ea82d53c0f
SHA512 af153f93af0a80b2ab351eced1063d164f9c43ad5f604ddae41b738a03bf1e12b723c312905165725894b9e1d4d38841b48123d995371eaab33fd9574047e77e
SSDEEP 12288:nQhMbaIMu7L5NVErCA4z2g6rTcbckPU82900Ve7zw+K+D:nQhfdmMSirYbcMNgef0
TLSH
T101F523B5B230777ED32B26753012807719A726F371DE6B1BCA9406829C08B64DFA56CF
MD5 SHA1 SHA512 SSDEEP TLSH