wannacry | 426595992396cae1f6e247c8afdb900704bff3402d9c5d503a1e33b4dffeafe5

General

Target

2025-02-04_582a2a897b7bb6085fa6234733fad546_wannacry.exe
Size

3.6MB
MD5

582a2a897b7bb6085fa6234733fad546
SHA1

5eca51c5cdd0dc6a031af6bf1a1cb531bf00ff12
SHA256

426595992396cae1f6e247c8afdb900704bff3402d9c5d503a1e33b4dffeafe5
SHA512

bceaa1b20fa340078a8ff89a0003482b7ee22fecd971607b07344fa7c1417f28684c9ea2d1b832e8a72d035a5eacb7ee1b8fd503e11337251a994ea5535fd562
SSDEEP

24576:2bLgddQhfdmMSirYbcMNgef0QeQjGu8kIqRY:2nAQqMSPbcBVQejE

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 (3161) 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
2456	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	2025-02-04_582a2a897b7bb6085fa6234733fad546_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-02-04_582a2a897b7bb6085fa6234733fad546_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	2025-02-04_582a2a897b7bb6085fa6234733fad546_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-04_582a2a897b7bb6085fa6234733fad546_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-02-04_582a2a897b7bb6085fa6234733fad546_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-02-04_582a2a897b7bb6085fa6234733fad546_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00ea000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-04_582a2a897b7bb6085fa6234733fad546_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-04_582a2a897b7bb6085fa6234733fad546_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-02-04_582a2a897b7bb6085fa6234733fad546_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-04_582a2a897b7bb6085fa6234733fad546_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-04_582a2a897b7bb6085fa6234733fad546_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-02-04_582a2a897b7bb6085fa6234733fad546_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{148341C8-0451-4003-8958-DD5733BC0A86}	2025-02-04_582a2a897b7bb6085fa6234733fad546_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{148341C8-0451-4003-8958-DD5733BC0A86}\WpadDecisionTime = b031267b1977db01	2025-02-04_582a2a897b7bb6085fa6234733fad546_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-02-04_582a2a897b7bb6085fa6234733fad546_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-02-04_582a2a897b7bb6085fa6234733fad546_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-83-07-14-26-7d\WpadDecisionReason = "1"	2025-02-04_582a2a897b7bb6085fa6234733fad546_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-83-07-14-26-7d\WpadDecision = "0"	2025-02-04_582a2a897b7bb6085fa6234733fad546_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-04_582a2a897b7bb6085fa6234733fad546_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-02-04_582a2a897b7bb6085fa6234733fad546_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{148341C8-0451-4003-8958-DD5733BC0A86}\WpadDecision = "0"	2025-02-04_582a2a897b7bb6085fa6234733fad546_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{148341C8-0451-4003-8958-DD5733BC0A86}\WpadNetworkName = "Network 3"	2025-02-04_582a2a897b7bb6085fa6234733fad546_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-83-07-14-26-7d\WpadDecisionTime = b031267b1977db01	2025-02-04_582a2a897b7bb6085fa6234733fad546_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-02-04_582a2a897b7bb6085fa6234733fad546_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-02-04_582a2a897b7bb6085fa6234733fad546_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{148341C8-0451-4003-8958-DD5733BC0A86}\WpadDecisionReason = "1"	2025-02-04_582a2a897b7bb6085fa6234733fad546_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-83-07-14-26-7d	2025-02-04_582a2a897b7bb6085fa6234733fad546_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{148341C8-0451-4003-8958-DD5733BC0A86}\32-83-07-14-26-7d	2025-02-04_582a2a897b7bb6085fa6234733fad546_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-02-04_582a2a897b7bb6085fa6234733fad546_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-04_582a2a897b7bb6085fa6234733fad546_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2504
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2456

C:\Users\Admin\AppData\Local\Temp\2025-02-04_582a2a897b7bb6085fa6234733fad546_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-02-04_582a2a897b7bb6085fa6234733fad546_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2688

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
936526b7f29e0539bc3f2619f238a8fb

SHA1
44aeb829734ba43df6c46dc57611a367a00223c6

SHA256
d616fdf53bed304f78895eae115b395c8e2f295d99a1b8c6c116e4df8d16612b

SHA512
3895b9e916e6eacfaa98114a44088681c2da19c37d6b9e96e18996d9d6e25076d01352c35898775c200e94c7f9966c587aabae96116747720da00480fe9bee0e

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