wannacry | df7d992f6334ad4fc7234d962501b2469637f3e2c30645cee2a36a749bb959c1

Analysis

max time kernel
150s
max time network
152s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
27/10/2026, 03:14

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General

Target
df7d992f6334ad4fc7234d962501b2469637f3e2c30645cee2a36a749bb959c1.dll
Size 5.0MB
Sample261027-drqkdace82
SHA256 df7d992f6334ad4fc7234d962501b2469637f3e2c30645cee2a36a749bb959c1
MD5 dd4a2cd3f8dabfce721463d3064cf8e7
SHA1 7961d4907ce8bc04c82cd72fdab368becd7e30ae
SHA512 82e97ad8921c4f6b798fd5cfcd04e5761c94c51a4ea7d24d893d0929a2e2c5e7e44ee8b36ac654819f0366404aa0b3bc9644bff96a8eec81fcfae62186876ef8
SSDEEP 24576:SbLgddQhfdmMSirYbcMNgef0QeQjG/D8kIqvOwN:SnAQqMSPbcBVQej/zOwN
TLSH
T103368211B84B0C9CCABF63704C277F69CA56E558023962B783725B1FAFE435EE2B4854
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 (3343) 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
3584	mssecsvc.exe
5188	mssecsvc.exe
4192	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

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 6072 wrote to memory of 1840	6072	rundll32.exe	89
PID 1840 wrote to memory of 3584	1840	rundll32.exe	90

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\df7d992f6334ad4fc7234d962501b2469637f3e2c30645cee2a36a749bb959c1.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:6072
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\df7d992f6334ad4fc7234d962501b2469637f3e2c30645cee2a36a749bb959c1.dll,#1
  2⤵
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1840
- - 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:3584
  - - C:\WINDOWS\tasksche.exe
      C:\WINDOWS\tasksche.exe /i
      4⤵
      Executes dropped EXE
      PID:4192

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:5188

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

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 69bb9ab73bd93095a232f2acf77d46c0bab827ed98e77adcb5a99b2c7e7d8f3f
MD5 56cbca1732ea1b7f7d733295074ee9c9
SHA1 885af150f67fa7cf814f9ec3a66d11b01213553c
SHA512 8b2573e119403444ffb81a5c632f835f5f1ad24be186cd4c6dba1af33eeb07243e279651acb8c5ee50334ca1750aa35a019849984978bf5b08650c3a37b33cde
SSDEEP 24576:2bLgddQhfdmMSirYbcMNgef0QeQjG/D8kIqvOwN:2nAQqMSPbcBVQej/zOwN
TLSH
T178068211B84B0C9CCABF63704C277F69CA56E558023962B783725B1FAFE435EE2B4854
MD5 SHA1 SHA512 SSDEEP TLSH

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tasksche.exe

Path C:\Windows\tasksche.exe
Size 3.4MB
SHA256 09d38eddd2de6f4b9af9b07137cecde41c28723940bc4f45c4feb2418fdfd755
MD5 f3c1c820b60b84d098d7c7cb1296930e
SHA1 890ac93ec6f29dff4a036087c568d4161ba8529a
SHA512 c9b9f77974040075978146e6006367b193f5b5cb1a21344022b7a05c5b45359fcbb31600193aaf54e9e29277fc375955273b21526400fe850624450f966823a6
SSDEEP 24576:nQhfdmMSirYbcMNgef0QeQjG/D8kIqvOwNS:nQqMSPbcBVQej/zOwNS
TLSH
T195F56111B8470C9CCABF63714C277F65CA56E558023962B783B25B0FAFE435EE2B4894
MD5 SHA1 SHA512 SSDEEP TLSH