wannacry | d1fbe0d083b0427662d6191054493cc72a38a1684a8165696f1dc55813d8bf28

General

Target

2024-12-07_b385a9e7c98b2b006db23806a86b96dc_wannacry.exe
Size

5.0MB
MD5

b385a9e7c98b2b006db23806a86b96dc
SHA1

692879ad41d6c44c32b734d9c80237c852d798b1
SHA256

d1fbe0d083b0427662d6191054493cc72a38a1684a8165696f1dc55813d8bf28
SHA512

5fd924f0312e76255c44aef5535592544ad79d5d3217436a8b3c0b5e7f53ee868a3188c0eb1d332972977439b6cc49bf98c91920fb73e38eb62e61cb451e29b0
SSDEEP

49152:XnAQqMSPbcBVQ6+TSqTdX1HkQo6SAARdhnvxJM0H9PAMEcaEa:XDqPoBlcSUDk36SAEdhvxWa9P5

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 (3316) 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
2928	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	2024-12-07_b385a9e7c98b2b006db23806a86b96dc_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-12-07_b385a9e7c98b2b006db23806a86b96dc_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	2024-12-07_b385a9e7c98b2b006db23806a86b96dc_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-07_b385a9e7c98b2b006db23806a86b96dc_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-12-07_b385a9e7c98b2b006db23806a86b96dc_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-12-07_b385a9e7c98b2b006db23806a86b96dc_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8482CF29-FF84-4802-8C2B-6FB4C55793CB}\WpadDecision = "0"	2024-12-07_b385a9e7c98b2b006db23806a86b96dc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-07_b385a9e7c98b2b006db23806a86b96dc_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-07_b385a9e7c98b2b006db23806a86b96dc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-07_b385a9e7c98b2b006db23806a86b96dc_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-12-07_b385a9e7c98b2b006db23806a86b96dc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8482CF29-FF84-4802-8C2B-6FB4C55793CB}	2024-12-07_b385a9e7c98b2b006db23806a86b96dc_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3a-16-8c-36-02-05\WpadDecisionTime = f00b250f9648db01	2024-12-07_b385a9e7c98b2b006db23806a86b96dc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-12-07_b385a9e7c98b2b006db23806a86b96dc_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-12-07_b385a9e7c98b2b006db23806a86b96dc_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f010b000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-07_b385a9e7c98b2b006db23806a86b96dc_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8482CF29-FF84-4802-8C2B-6FB4C55793CB}\WpadDecisionReason = "1"	2024-12-07_b385a9e7c98b2b006db23806a86b96dc_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8482CF29-FF84-4802-8C2B-6FB4C55793CB}\WpadDecisionTime = f00b250f9648db01	2024-12-07_b385a9e7c98b2b006db23806a86b96dc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3a-16-8c-36-02-05	2024-12-07_b385a9e7c98b2b006db23806a86b96dc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8482CF29-FF84-4802-8C2B-6FB4C55793CB}\3a-16-8c-36-02-05	2024-12-07_b385a9e7c98b2b006db23806a86b96dc_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-12-07_b385a9e7c98b2b006db23806a86b96dc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-12-07_b385a9e7c98b2b006db23806a86b96dc_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-12-07_b385a9e7c98b2b006db23806a86b96dc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-12-07_b385a9e7c98b2b006db23806a86b96dc_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8482CF29-FF84-4802-8C2B-6FB4C55793CB}\WpadNetworkName = "Network 3"	2024-12-07_b385a9e7c98b2b006db23806a86b96dc_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3a-16-8c-36-02-05\WpadDecisionReason = "1"	2024-12-07_b385a9e7c98b2b006db23806a86b96dc_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3a-16-8c-36-02-05\WpadDecision = "0"	2024-12-07_b385a9e7c98b2b006db23806a86b96dc_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-07_b385a9e7c98b2b006db23806a86b96dc_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-07_b385a9e7c98b2b006db23806a86b96dc_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-07_b385a9e7c98b2b006db23806a86b96dc_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1372
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2928

C:\Users\Admin\AppData\Local\Temp\2024-12-07_b385a9e7c98b2b006db23806a86b96dc_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-12-07_b385a9e7c98b2b006db23806a86b96dc_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2496

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
d04f24a23ce11ac890be0e7fc19067ad

SHA1
015fff026649fb8791581488237b9dcaa7e60189

SHA256
fd48efe93d63c8c81147c4e8436500e4b6a1a75b84f62c972e358a2150869160

SHA512
9347a163e300552ac18e1161b32c2502a5c7d70df425ba3d47a26d51403ad8b43751bb376a70df3cf8fe2223430fec91bb4dbeda40a9066715d0b278c7434837

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Analysis

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