wannacry | c49976484dfa17b6f250346046794efa6e7db390d7328360a784772e269bf0e5

General

Target

2024-10-12_04fd02e03c28d45ea24ab3d2a1f74720_wannacry.exe
Size

3.6MB
MD5

04fd02e03c28d45ea24ab3d2a1f74720
SHA1

c3f81d6afdcf0a900b15701219a89df371e65fa4
SHA256

c49976484dfa17b6f250346046794efa6e7db390d7328360a784772e269bf0e5
SHA512

519fea3e4bf184c7947790b97db655043f77670ae53bda0afa5f6ab6239140c86f1f17c508956ed40fd692fa8fbe7d77e2c9f27fd6750637b991ef3d88015d43
SSDEEP

49152:2nAQqMSPbcBVQ2INRx+TSqTdX1HkQo6SA:yDqPoBbaRxcSUDk36SA

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3334) 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
2008	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	2024-10-12_04fd02e03c28d45ea24ab3d2a1f74720_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-12_04fd02e03c28d45ea24ab3d2a1f74720_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	2024-10-12_04fd02e03c28d45ea24ab3d2a1f74720_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-12_04fd02e03c28d45ea24ab3d2a1f74720_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-12_04fd02e03c28d45ea24ab3d2a1f74720_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-12_04fd02e03c28d45ea24ab3d2a1f74720_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CE41F050-B5BA-4677-8047-786229F4EB65}\WpadNetworkName = "Network 3"	2024-10-12_04fd02e03c28d45ea24ab3d2a1f74720_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\46-9f-c5-ee-47-1e	2024-10-12_04fd02e03c28d45ea24ab3d2a1f74720_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CE41F050-B5BA-4677-8047-786229F4EB65}\46-9f-c5-ee-47-1e	2024-10-12_04fd02e03c28d45ea24ab3d2a1f74720_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\46-9f-c5-ee-47-1e\WpadDecisionReason = "1"	2024-10-12_04fd02e03c28d45ea24ab3d2a1f74720_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-12_04fd02e03c28d45ea24ab3d2a1f74720_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-12_04fd02e03c28d45ea24ab3d2a1f74720_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00be000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_04fd02e03c28d45ea24ab3d2a1f74720_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CE41F050-B5BA-4677-8047-786229F4EB65}	2024-10-12_04fd02e03c28d45ea24ab3d2a1f74720_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CE41F050-B5BA-4677-8047-786229F4EB65}\WpadDecision = "0"	2024-10-12_04fd02e03c28d45ea24ab3d2a1f74720_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-12_04fd02e03c28d45ea24ab3d2a1f74720_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_04fd02e03c28d45ea24ab3d2a1f74720_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_04fd02e03c28d45ea24ab3d2a1f74720_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-12_04fd02e03c28d45ea24ab3d2a1f74720_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-12_04fd02e03c28d45ea24ab3d2a1f74720_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CE41F050-B5BA-4677-8047-786229F4EB65}\WpadDecisionTime = 7092e653511cdb01	2024-10-12_04fd02e03c28d45ea24ab3d2a1f74720_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_04fd02e03c28d45ea24ab3d2a1f74720_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-12_04fd02e03c28d45ea24ab3d2a1f74720_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-12_04fd02e03c28d45ea24ab3d2a1f74720_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CE41F050-B5BA-4677-8047-786229F4EB65}\WpadDecisionReason = "1"	2024-10-12_04fd02e03c28d45ea24ab3d2a1f74720_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\46-9f-c5-ee-47-1e\WpadDecisionTime = 7092e653511cdb01	2024-10-12_04fd02e03c28d45ea24ab3d2a1f74720_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\46-9f-c5-ee-47-1e\WpadDecision = "0"	2024-10-12_04fd02e03c28d45ea24ab3d2a1f74720_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_04fd02e03c28d45ea24ab3d2a1f74720_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-12_04fd02e03c28d45ea24ab3d2a1f74720_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_04fd02e03c28d45ea24ab3d2a1f74720_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2848
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2008

C:\Users\Admin\AppData\Local\Temp\2024-10-12_04fd02e03c28d45ea24ab3d2a1f74720_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-12_04fd02e03c28d45ea24ab3d2a1f74720_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2608

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
38a1c3348d6d1f6ebba3013ba8197fd1

SHA1
1f556dba357045c69fa0b192a7744e016cac5281

SHA256
9b5a845f50575a2aa8dc01cb2a9b4d4b71a074fabb485401b0d5c19a48b2c04b

SHA512
ec301692803ae65e832f120c558ff778e4fe41adfaefe82e149fbc142124755d56873bf8b1618f55dd26478f6116108547ee08865d7fe201cff2995b38fb3e5f

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Analysis

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