wannacry | aaa092a5c1481bcba68250f43201a17bcd996232ead22187b312a47e7ccbccde

General

Target

2024-10-18_af35eed94611b78c9a81c1142a250e5c_wannacry.exe
Size

5.0MB
MD5

af35eed94611b78c9a81c1142a250e5c
SHA1

d98f9c6bc1688ede12d0618e351b0e6b3207a323
SHA256

aaa092a5c1481bcba68250f43201a17bcd996232ead22187b312a47e7ccbccde
SHA512

1f184a4ba78996301d386eea1c20366f9d68dd45558c6b141beb26c35e9acb555e262eb91338fd30269b9b9eb93f9a53c6d90f53abc659a8e1d2a1466f676817
SSDEEP

49152:XnAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdh:XDqPoBhz1aRxcSUDk36SAEdh

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3061) 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
2788	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	2024-10-18_af35eed94611b78c9a81c1142a250e5c_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-18_af35eed94611b78c9a81c1142a250e5c_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	2024-10-18_af35eed94611b78c9a81c1142a250e5c_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-18_af35eed94611b78c9a81c1142a250e5c_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{03BC765C-A0F9-4A8F-B9C6-4599DBDEAD6C}\WpadNetworkName = "Network 3"	2024-10-18_af35eed94611b78c9a81c1142a250e5c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-18_af35eed94611b78c9a81c1142a250e5c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-18_af35eed94611b78c9a81c1142a250e5c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-18_af35eed94611b78c9a81c1142a250e5c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-18_af35eed94611b78c9a81c1142a250e5c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{03BC765C-A0F9-4A8F-B9C6-4599DBDEAD6C}\WpadDecision = "0"	2024-10-18_af35eed94611b78c9a81c1142a250e5c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{03BC765C-A0F9-4A8F-B9C6-4599DBDEAD6C}\42-cf-03-81-f4-1d	2024-10-18_af35eed94611b78c9a81c1142a250e5c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\42-cf-03-81-f4-1d\WpadDecisionReason = "1"	2024-10-18_af35eed94611b78c9a81c1142a250e5c_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-18_af35eed94611b78c9a81c1142a250e5c_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-18_af35eed94611b78c9a81c1142a250e5c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-18_af35eed94611b78c9a81c1142a250e5c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{03BC765C-A0F9-4A8F-B9C6-4599DBDEAD6C}\WpadDecisionReason = "1"	2024-10-18_af35eed94611b78c9a81c1142a250e5c_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{03BC765C-A0F9-4A8F-B9C6-4599DBDEAD6C}\WpadDecisionTime = e03aaed74721db01	2024-10-18_af35eed94611b78c9a81c1142a250e5c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\42-cf-03-81-f4-1d	2024-10-18_af35eed94611b78c9a81c1142a250e5c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\42-cf-03-81-f4-1d\WpadDecision = "0"	2024-10-18_af35eed94611b78c9a81c1142a250e5c_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-18_af35eed94611b78c9a81c1142a250e5c_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-18_af35eed94611b78c9a81c1142a250e5c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-18_af35eed94611b78c9a81c1142a250e5c_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-18_af35eed94611b78c9a81c1142a250e5c_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00bd000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-18_af35eed94611b78c9a81c1142a250e5c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-18_af35eed94611b78c9a81c1142a250e5c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-18_af35eed94611b78c9a81c1142a250e5c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{03BC765C-A0F9-4A8F-B9C6-4599DBDEAD6C}	2024-10-18_af35eed94611b78c9a81c1142a250e5c_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\42-cf-03-81-f4-1d\WpadDecisionTime = e03aaed74721db01	2024-10-18_af35eed94611b78c9a81c1142a250e5c_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-18_af35eed94611b78c9a81c1142a250e5c_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-18_af35eed94611b78c9a81c1142a250e5c_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2024
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2788

C:\Users\Admin\AppData\Local\Temp\2024-10-18_af35eed94611b78c9a81c1142a250e5c_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-18_af35eed94611b78c9a81c1142a250e5c_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:3000

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
52f6e1759e03ecec67f695eff0fcef18

SHA1
66fac9d83a148b917ac4c4a767af4a6eda1bf13f

SHA256
7546f77675d953469f9f928ed79de06161290f457a919bde21949578ac2d4e70

SHA512
5aa6be4dc540c5f2071c7c5456ec03f644b7bdcd0de3b603541c787055c40d3d21d6a5413dbb61714bbc40d06be6ebe61e4da835b09b29bbbe6805979e8d4124

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