wannacry | 1abbe8777a603883e20ead55732ff624374ed089248a6264a3f7c14d59cbf82c

General

Target

2024-10-10_a7967480ad11f9ba6f014451aad8eabe_wannacry.exe
Size

3.6MB
MD5

a7967480ad11f9ba6f014451aad8eabe
SHA1

74dced5e0fabccfc238add0e34288825501457fd
SHA256

1abbe8777a603883e20ead55732ff624374ed089248a6264a3f7c14d59cbf82c
SHA512

e30d0982d18e46f0fa6d8263b74ce63a97db51a7555afb17f0aeb603ba32a385021e52a48435c9646f68106e119bee8c0a54b9248861f06294f7eda692b4b50f
SSDEEP

49152:XnAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9:XDqPoBhz1aRxcSUDk36SAEdhvxWa9

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3241) 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
3020	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	2024-10-10_a7967480ad11f9ba6f014451aad8eabe_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-10_a7967480ad11f9ba6f014451aad8eabe_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	2024-10-10_a7967480ad11f9ba6f014451aad8eabe_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-10_a7967480ad11f9ba6f014451aad8eabe_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	2024-10-10_a7967480ad11f9ba6f014451aad8eabe_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-10_a7967480ad11f9ba6f014451aad8eabe_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E0C51D5F-3B81-45E5-AF06-7375530F11D5}\WpadDecisionTime = c090442d771bdb01	2024-10-10_a7967480ad11f9ba6f014451aad8eabe_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-85-8a-03-34-3d\WpadDecisionTime = c090442d771bdb01	2024-10-10_a7967480ad11f9ba6f014451aad8eabe_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-10_a7967480ad11f9ba6f014451aad8eabe_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-10_a7967480ad11f9ba6f014451aad8eabe_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-10_a7967480ad11f9ba6f014451aad8eabe_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E0C51D5F-3B81-45E5-AF06-7375530F11D5}\WpadDecision = "0"	2024-10-10_a7967480ad11f9ba6f014451aad8eabe_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-85-8a-03-34-3d\WpadDecisionReason = "1"	2024-10-10_a7967480ad11f9ba6f014451aad8eabe_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E0C51D5F-3B81-45E5-AF06-7375530F11D5}\WpadDecisionReason = "1"	2024-10-10_a7967480ad11f9ba6f014451aad8eabe_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-85-8a-03-34-3d	2024-10-10_a7967480ad11f9ba6f014451aad8eabe_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E0C51D5F-3B81-45E5-AF06-7375530F11D5}\0a-85-8a-03-34-3d	2024-10-10_a7967480ad11f9ba6f014451aad8eabe_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-10_a7967480ad11f9ba6f014451aad8eabe_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-10_a7967480ad11f9ba6f014451aad8eabe_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-10_a7967480ad11f9ba6f014451aad8eabe_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-10_a7967480ad11f9ba6f014451aad8eabe_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-10_a7967480ad11f9ba6f014451aad8eabe_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E0C51D5F-3B81-45E5-AF06-7375530F11D5}\WpadNetworkName = "Network 3"	2024-10-10_a7967480ad11f9ba6f014451aad8eabe_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-85-8a-03-34-3d\WpadDecision = "0"	2024-10-10_a7967480ad11f9ba6f014451aad8eabe_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-10_a7967480ad11f9ba6f014451aad8eabe_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-10_a7967480ad11f9ba6f014451aad8eabe_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-10_a7967480ad11f9ba6f014451aad8eabe_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f008d000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-10_a7967480ad11f9ba6f014451aad8eabe_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E0C51D5F-3B81-45E5-AF06-7375530F11D5}	2024-10-10_a7967480ad11f9ba6f014451aad8eabe_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-10_a7967480ad11f9ba6f014451aad8eabe_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-10_a7967480ad11f9ba6f014451aad8eabe_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2840
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:3020

C:\Users\Admin\AppData\Local\Temp\2024-10-10_a7967480ad11f9ba6f014451aad8eabe_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-10_a7967480ad11f9ba6f014451aad8eabe_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2984

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
50a498a404cfa69ee1deba6139eb51f3

SHA1
f9c816bf085b2999ca332750ecb4c8850cbf5da7

SHA256
43759fb8ecb4003787c8cc142e3116a7a35262e64493f6ac8a855622d578c170

SHA512
12ddc09fe321c1c08e80e3705b24ca590d72c528e27bf5af17d386e181529c2f6e8c5507aada55f4869d7ffa862f8457d29123ca78b2c830b5558007106c4145

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Analysis

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