wannacry | e0f034bcd89b1ac1018deebcdad5ac28a4f329e478773bb89e1a1fc6d2a5871d

General

Target

2024-10-12_461f9afd1c9020f07c2ec68122c6cd08_wannacry.exe
Size

3.6MB
MD5

461f9afd1c9020f07c2ec68122c6cd08
SHA1

5644f50783e679c9e1bf7de5d78f24eb155809da
SHA256

e0f034bcd89b1ac1018deebcdad5ac28a4f329e478773bb89e1a1fc6d2a5871d
SHA512

01b693991d65096b1ccd7989ae17d6d7eaff611525cb45b0012fe99f1128028571a6a30131222bfd032d79909265249a3ab9d4622055391176fc0ce13f19a23c
SSDEEP

98304:ZDqPob1aRxcSUDk36SAovxWa9P593R8yAVp2HI:ZDqPu1Cxcxk3ZALadzR8yc4HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3196) 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
2916	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_461f9afd1c9020f07c2ec68122c6cd08_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-12_461f9afd1c9020f07c2ec68122c6cd08_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_461f9afd1c9020f07c2ec68122c6cd08_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-12_461f9afd1c9020f07c2ec68122c6cd08_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-12_461f9afd1c9020f07c2ec68122c6cd08_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-12_461f9afd1c9020f07c2ec68122c6cd08_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{36365AD8-4725-4667-98DC-40FFB490BFFB}\WpadDecisionReason = "1"	2024-10-12_461f9afd1c9020f07c2ec68122c6cd08_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-12_461f9afd1c9020f07c2ec68122c6cd08_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0077000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_461f9afd1c9020f07c2ec68122c6cd08_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{36365AD8-4725-4667-98DC-40FFB490BFFB}\WpadDecisionTime = a0889497571cdb01	2024-10-12_461f9afd1c9020f07c2ec68122c6cd08_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{36365AD8-4725-4667-98DC-40FFB490BFFB}\WpadNetworkName = "Network 3"	2024-10-12_461f9afd1c9020f07c2ec68122c6cd08_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{36365AD8-4725-4667-98DC-40FFB490BFFB}\16-83-b1-c9-7f-b5	2024-10-12_461f9afd1c9020f07c2ec68122c6cd08_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-12_461f9afd1c9020f07c2ec68122c6cd08_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_461f9afd1c9020f07c2ec68122c6cd08_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-12_461f9afd1c9020f07c2ec68122c6cd08_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-12_461f9afd1c9020f07c2ec68122c6cd08_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-12_461f9afd1c9020f07c2ec68122c6cd08_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-12_461f9afd1c9020f07c2ec68122c6cd08_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{36365AD8-4725-4667-98DC-40FFB490BFFB}	2024-10-12_461f9afd1c9020f07c2ec68122c6cd08_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-83-b1-c9-7f-b5\WpadDecisionReason = "1"	2024-10-12_461f9afd1c9020f07c2ec68122c6cd08_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_461f9afd1c9020f07c2ec68122c6cd08_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_461f9afd1c9020f07c2ec68122c6cd08_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-12_461f9afd1c9020f07c2ec68122c6cd08_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-83-b1-c9-7f-b5\WpadDecisionTime = a0889497571cdb01	2024-10-12_461f9afd1c9020f07c2ec68122c6cd08_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-83-b1-c9-7f-b5\WpadDecision = "0"	2024-10-12_461f9afd1c9020f07c2ec68122c6cd08_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_461f9afd1c9020f07c2ec68122c6cd08_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{36365AD8-4725-4667-98DC-40FFB490BFFB}\WpadDecision = "0"	2024-10-12_461f9afd1c9020f07c2ec68122c6cd08_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-83-b1-c9-7f-b5	2024-10-12_461f9afd1c9020f07c2ec68122c6cd08_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-12_461f9afd1c9020f07c2ec68122c6cd08_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_461f9afd1c9020f07c2ec68122c6cd08_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2740
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2916

C:\Users\Admin\AppData\Local\Temp\2024-10-12_461f9afd1c9020f07c2ec68122c6cd08_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-12_461f9afd1c9020f07c2ec68122c6cd08_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2784

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
13161ce7f00f79d071c97317e5b87f59

SHA1
1993430495744aaac79f0bda1e365fb76479fd3d

SHA256
21b03af23e793f2696205f055d6735c839183f1d3724e446c88a0a051d8db80b

SHA512
b30a55c0a25f53145c043d989c62b3543e2785eb6bc073481a42b9dd65f4fdae9092ebea0ae1d1e972cab2fd0b4fe27732a70c3474f9ce19ee465b49dfebee1b

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