wannacry | 683da41aaf9717d515023e01f57e9b4725b0d2e72f12c8abfa28cece59ff2058

General

Target

2024-11-25_c659b63f123687a7c98cbfde3694a199_wannacry.exe
Size

5.0MB
MD5

c659b63f123687a7c98cbfde3694a199
SHA1

b5307316b0147bdf772cd9873ea14b3b818a7042
SHA256

683da41aaf9717d515023e01f57e9b4725b0d2e72f12c8abfa28cece59ff2058
SHA512

4cfe3babec04fcedbf6b9de862e2828f36b5f2da3b14369e402396e1d26ea941d6919b25aea9847635cc0b371fa6a1876020cdfd737c149b5a6ed4559520f48c
SSDEEP

98304:yDqPoBhz1GRXcSUDkT6SAEdhvxWa92593R8yAV22H:yDqPe12XcxkTZAEUaIzR8yc9H

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Wannacry family
wannacry
Contacts a large (3321) 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
2732	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	2024-11-25_c659b63f123687a7c98cbfde3694a199_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-11-25_c659b63f123687a7c98cbfde3694a199_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	2024-11-25_c659b63f123687a7c98cbfde3694a199_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-25_c659b63f123687a7c98cbfde3694a199_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{91DCB10D-02F0-4FAA-9DE1-5F5E3625B9F5}	2024-11-25_c659b63f123687a7c98cbfde3694a199_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{91DCB10D-02F0-4FAA-9DE1-5F5E3625B9F5}\WpadDecisionReason = "1"	2024-11-25_c659b63f123687a7c98cbfde3694a199_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{91DCB10D-02F0-4FAA-9DE1-5F5E3625B9F5}\WpadDecision = "0"	2024-11-25_c659b63f123687a7c98cbfde3694a199_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3a-98-81-79-bb-64\WpadDecisionReason = "1"	2024-11-25_c659b63f123687a7c98cbfde3694a199_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3a-98-81-79-bb-64\WpadDecision = "0"	2024-11-25_c659b63f123687a7c98cbfde3694a199_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-11-25_c659b63f123687a7c98cbfde3694a199_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-11-25_c659b63f123687a7c98cbfde3694a199_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-11-25_c659b63f123687a7c98cbfde3694a199_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-25_c659b63f123687a7c98cbfde3694a199_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-11-25_c659b63f123687a7c98cbfde3694a199_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-11-25_c659b63f123687a7c98cbfde3694a199_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-11-25_c659b63f123687a7c98cbfde3694a199_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-11-25_c659b63f123687a7c98cbfde3694a199_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-11-25_c659b63f123687a7c98cbfde3694a199_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-11-25_c659b63f123687a7c98cbfde3694a199_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00dc000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-25_c659b63f123687a7c98cbfde3694a199_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3a-98-81-79-bb-64	2024-11-25_c659b63f123687a7c98cbfde3694a199_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-25_c659b63f123687a7c98cbfde3694a199_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{91DCB10D-02F0-4FAA-9DE1-5F5E3625B9F5}\WpadDecisionTime = 608291ba413fdb01	2024-11-25_c659b63f123687a7c98cbfde3694a199_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{91DCB10D-02F0-4FAA-9DE1-5F5E3625B9F5}\WpadNetworkName = "Network 3"	2024-11-25_c659b63f123687a7c98cbfde3694a199_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{91DCB10D-02F0-4FAA-9DE1-5F5E3625B9F5}\3a-98-81-79-bb-64	2024-11-25_c659b63f123687a7c98cbfde3694a199_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-25_c659b63f123687a7c98cbfde3694a199_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-25_c659b63f123687a7c98cbfde3694a199_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3a-98-81-79-bb-64\WpadDecisionTime = 608291ba413fdb01	2024-11-25_c659b63f123687a7c98cbfde3694a199_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-25_c659b63f123687a7c98cbfde3694a199_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-25_c659b63f123687a7c98cbfde3694a199_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2816
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2732

C:\Users\Admin\AppData\Local\Temp\2024-11-25_c659b63f123687a7c98cbfde3694a199_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-25_c659b63f123687a7c98cbfde3694a199_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2348

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

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
bf80849c7610ec8edb213767c3e2aef1

SHA1
0532640ee1078c7acbeda03da1b1b5f89a6af32f

SHA256
1b9418d96953870cfdc8567305204b25152cfb4ccdedc61b76669d07440cedac

SHA512
7ff65e095fc552d29840812bb8c859af9de3ccd0d85f290c666c4ce6c8b554f2dbd4101bad9b8bf1e69091d238575aa6d3774b68a340b81e997a53bc292b1b3f

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Analysis

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