wannacry | ac979d78ccdba5fc517f937030995a0e5c498ec25631de5f00c6b92f0b107f22

General

Target

2024-09-25_548980a80b5773f7d67b3694aeed9383_wannacry.exe
Size

5.0MB
MD5

548980a80b5773f7d67b3694aeed9383
SHA1

c4d2f84e603cbd12bfc8c47a29ca97a1a6271525
SHA256

ac979d78ccdba5fc517f937030995a0e5c498ec25631de5f00c6b92f0b107f22
SHA512

2422619abbca10f4d4f57a0eb839e32e6698e55c795694fa364c1d3315646bfb0a24896e36fa6087c4713df253167fe5cec126685f8b608593b608c4c292ab61
SSDEEP

49152:2nAQqMSPbcBVQejU+TSqTdX1HkQo6SAANvc:yDqPoBhwcSUDk36SA

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3222) 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
3060	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	2024-09-25_548980a80b5773f7d67b3694aeed9383_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-25_548980a80b5773f7d67b3694aeed9383_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	2024-09-25_548980a80b5773f7d67b3694aeed9383_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-25_548980a80b5773f7d67b3694aeed9383_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\06-8f-75-b9-48-40	2024-09-25_548980a80b5773f7d67b3694aeed9383_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\06-8f-75-b9-48-40\WpadDecisionTime = d0c2df2f300fdb01	2024-09-25_548980a80b5773f7d67b3694aeed9383_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-25_548980a80b5773f7d67b3694aeed9383_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-25_548980a80b5773f7d67b3694aeed9383_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-09-25_548980a80b5773f7d67b3694aeed9383_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00f2000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-25_548980a80b5773f7d67b3694aeed9383_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{056034B5-1542-46A0-B9CA-94E06D97B030}\WpadNetworkName = "Network 3"	2024-09-25_548980a80b5773f7d67b3694aeed9383_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-25_548980a80b5773f7d67b3694aeed9383_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-09-25_548980a80b5773f7d67b3694aeed9383_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{056034B5-1542-46A0-B9CA-94E06D97B030}\06-8f-75-b9-48-40	2024-09-25_548980a80b5773f7d67b3694aeed9383_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\06-8f-75-b9-48-40\WpadDecisionReason = "1"	2024-09-25_548980a80b5773f7d67b3694aeed9383_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{056034B5-1542-46A0-B9CA-94E06D97B030}\WpadDecisionTime = d0c2df2f300fdb01	2024-09-25_548980a80b5773f7d67b3694aeed9383_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{056034B5-1542-46A0-B9CA-94E06D97B030}\WpadDecision = "0"	2024-09-25_548980a80b5773f7d67b3694aeed9383_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\06-8f-75-b9-48-40\WpadDecision = "0"	2024-09-25_548980a80b5773f7d67b3694aeed9383_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-09-25_548980a80b5773f7d67b3694aeed9383_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-09-25_548980a80b5773f7d67b3694aeed9383_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-09-25_548980a80b5773f7d67b3694aeed9383_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-09-25_548980a80b5773f7d67b3694aeed9383_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{056034B5-1542-46A0-B9CA-94E06D97B030}	2024-09-25_548980a80b5773f7d67b3694aeed9383_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-25_548980a80b5773f7d67b3694aeed9383_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-09-25_548980a80b5773f7d67b3694aeed9383_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-25_548980a80b5773f7d67b3694aeed9383_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-09-25_548980a80b5773f7d67b3694aeed9383_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{056034B5-1542-46A0-B9CA-94E06D97B030}\WpadDecisionReason = "1"	2024-09-25_548980a80b5773f7d67b3694aeed9383_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-25_548980a80b5773f7d67b3694aeed9383_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-25_548980a80b5773f7d67b3694aeed9383_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2092
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:3060

C:\Users\Admin\AppData\Local\Temp\2024-09-25_548980a80b5773f7d67b3694aeed9383_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-25_548980a80b5773f7d67b3694aeed9383_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2988

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
8cac10227e38382514b199f69f131f08

SHA1
328140bdf74880e925ba4751f256452a6476d623

SHA256
e957c6b0d95f3a76d425db475c350514b2c284264625438501f4387d5ae18d63

SHA512
a79b76fad71f156e83cb71340265b9c9c717d38deafb2968a02ad4c34bdb5fc77acc0e1cf87398a901364a4914a17716bb1e1b74f0d3e63d76fdc7c9911df5db

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