wannacry | 4749853cc258f8cf7e75afd7ed39f51d45bd2c63b451c2842ff3413c6be74a2e

General

Target

2024-12-21_01e37d3034140d881ee8870fd9bf7466_wannacry.exe
Size

5.0MB
MD5

01e37d3034140d881ee8870fd9bf7466
SHA1

dd026c5338d67034beb7db41c9a4c497fafa0054
SHA256

4749853cc258f8cf7e75afd7ed39f51d45bd2c63b451c2842ff3413c6be74a2e
SHA512

e96ff455a42224ec167cf3c2bd111ec36d67fc0dbfc3bccd5b209ce08dad7eeb73764e3214f30dba46ab57959ec1ece75fcbafdd46432e4abba8e6def1a085ef
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9PAMEc:yDqPoBhz1aRxcSUDk36SAEdhvxWa9P5

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Wannacry family
wannacry
Contacts a large (3166) 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
2784	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	2024-12-21_01e37d3034140d881ee8870fd9bf7466_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-12-21_01e37d3034140d881ee8870fd9bf7466_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	2024-12-21_01e37d3034140d881ee8870fd9bf7466_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-21_01e37d3034140d881ee8870fd9bf7466_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-21_01e37d3034140d881ee8870fd9bf7466_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-12-21_01e37d3034140d881ee8870fd9bf7466_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E8E0F582-A60E-487B-8966-2D9C001BF273}\WpadDecisionReason = "1"	2024-12-21_01e37d3034140d881ee8870fd9bf7466_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-12-21_01e37d3034140d881ee8870fd9bf7466_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-12-21_01e37d3034140d881ee8870fd9bf7466_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-12-21_01e37d3034140d881ee8870fd9bf7466_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-12-21_01e37d3034140d881ee8870fd9bf7466_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-21_01e37d3034140d881ee8870fd9bf7466_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-12-21_01e37d3034140d881ee8870fd9bf7466_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-12-21_01e37d3034140d881ee8870fd9bf7466_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E8E0F582-A60E-487B-8966-2D9C001BF273}	2024-12-21_01e37d3034140d881ee8870fd9bf7466_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E8E0F582-A60E-487B-8966-2D9C001BF273}\WpadDecision = "0"	2024-12-21_01e37d3034140d881ee8870fd9bf7466_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\36-ff-e6-ee-20-e8	2024-12-21_01e37d3034140d881ee8870fd9bf7466_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E8E0F582-A60E-487B-8966-2D9C001BF273}\36-ff-e6-ee-20-e8	2024-12-21_01e37d3034140d881ee8870fd9bf7466_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\36-ff-e6-ee-20-e8\WpadDecisionReason = "1"	2024-12-21_01e37d3034140d881ee8870fd9bf7466_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-12-21_01e37d3034140d881ee8870fd9bf7466_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\36-ff-e6-ee-20-e8\WpadDecision = "0"	2024-12-21_01e37d3034140d881ee8870fd9bf7466_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\36-ff-e6-ee-20-e8\WpadDecisionTime = b08b8f309253db01	2024-12-21_01e37d3034140d881ee8870fd9bf7466_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-21_01e37d3034140d881ee8870fd9bf7466_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-12-21_01e37d3034140d881ee8870fd9bf7466_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00cc000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-21_01e37d3034140d881ee8870fd9bf7466_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E8E0F582-A60E-487B-8966-2D9C001BF273}\WpadDecisionTime = b08b8f309253db01	2024-12-21_01e37d3034140d881ee8870fd9bf7466_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E8E0F582-A60E-487B-8966-2D9C001BF273}\WpadNetworkName = "Network 2"	2024-12-21_01e37d3034140d881ee8870fd9bf7466_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-21_01e37d3034140d881ee8870fd9bf7466_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-21_01e37d3034140d881ee8870fd9bf7466_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-21_01e37d3034140d881ee8870fd9bf7466_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2492
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2784

C:\Users\Admin\AppData\Local\Temp\2024-12-21_01e37d3034140d881ee8870fd9bf7466_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-12-21_01e37d3034140d881ee8870fd9bf7466_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2380

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

2

T1046

System Location Discovery

1

T1614

System Language Discovery

1

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
c23365c3271e9954c216d11901eb2f37

SHA1
7e710847c33a3a3fd08ec22c415e8d0affc18ecf

SHA256
04ab7c2da4e1ed0f3dcf8a5aa43f8782059eb93a57e7900e35d44452f9133162

SHA512
c001db1deafcbb06c4f16a2d41e56fdfaaf7c5e51ecdbe03a7245643f81b575cf361f7a4e021818d20dc46c2e1e800009f5f87e028eb4a8379b103e48e8f3642

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