wannacry | 049755b90ab60923eb3133c163116b654890362c2ef863129d2ef2f538583b52

General

Target

2025-01-02_f1aac2c725d09a235f6f34968d08a754_wannacry.exe
Size

5.0MB
MD5

f1aac2c725d09a235f6f34968d08a754
SHA1

f5036032a2e11971ae40e40ede616cc515017d8e
SHA256

049755b90ab60923eb3133c163116b654890362c2ef863129d2ef2f538583b52
SHA512

dd235561454128b3cf4c1a348af00dccc3fa0c36eb543addd211af2b72a1ac29280e5e980d625ee015692d779fbcdaa2632614460845ed8dfecfcc73936214b6
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAA:yDqPoBhz1aRxcSUDk36SA

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 (3260) 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
2800	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	2025-01-02_f1aac2c725d09a235f6f34968d08a754_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-01-02_f1aac2c725d09a235f6f34968d08a754_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	2025-01-02_f1aac2c725d09a235f6f34968d08a754_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-02_f1aac2c725d09a235f6f34968d08a754_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-01-02_f1aac2c725d09a235f6f34968d08a754_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0119000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-02_f1aac2c725d09a235f6f34968d08a754_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3732579E-CA6B-4BA6-9C9A-7D2D7C810FD6}\WpadDecisionTime = b0671ab0105ddb01	2025-01-02_f1aac2c725d09a235f6f34968d08a754_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3732579E-CA6B-4BA6-9C9A-7D2D7C810FD6}\WpadDecision = "0"	2025-01-02_f1aac2c725d09a235f6f34968d08a754_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-01-02_f1aac2c725d09a235f6f34968d08a754_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-01-02_f1aac2c725d09a235f6f34968d08a754_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-01-02_f1aac2c725d09a235f6f34968d08a754_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3732579E-CA6B-4BA6-9C9A-7D2D7C810FD6}\WpadDecisionReason = "1"	2025-01-02_f1aac2c725d09a235f6f34968d08a754_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3732579E-CA6B-4BA6-9C9A-7D2D7C810FD6}\WpadNetworkName = "Network 3"	2025-01-02_f1aac2c725d09a235f6f34968d08a754_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-01-02_f1aac2c725d09a235f6f34968d08a754_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-01-02_f1aac2c725d09a235f6f34968d08a754_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3732579E-CA6B-4BA6-9C9A-7D2D7C810FD6}	2025-01-02_f1aac2c725d09a235f6f34968d08a754_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-02_f1aac2c725d09a235f6f34968d08a754_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-01-02_f1aac2c725d09a235f6f34968d08a754_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-01-02_f1aac2c725d09a235f6f34968d08a754_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-01-02_f1aac2c725d09a235f6f34968d08a754_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ee-43-49-10-ed-c3	2025-01-02_f1aac2c725d09a235f6f34968d08a754_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-02_f1aac2c725d09a235f6f34968d08a754_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-02_f1aac2c725d09a235f6f34968d08a754_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-02_f1aac2c725d09a235f6f34968d08a754_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ee-43-49-10-ed-c3\WpadDecision = "0"	2025-01-02_f1aac2c725d09a235f6f34968d08a754_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3732579E-CA6B-4BA6-9C9A-7D2D7C810FD6}\ee-43-49-10-ed-c3	2025-01-02_f1aac2c725d09a235f6f34968d08a754_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ee-43-49-10-ed-c3\WpadDecisionReason = "1"	2025-01-02_f1aac2c725d09a235f6f34968d08a754_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ee-43-49-10-ed-c3\WpadDecisionTime = b0671ab0105ddb01	2025-01-02_f1aac2c725d09a235f6f34968d08a754_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-01-02_f1aac2c725d09a235f6f34968d08a754_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-02_f1aac2c725d09a235f6f34968d08a754_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2376
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2800

C:\Users\Admin\AppData\Local\Temp\2025-01-02_f1aac2c725d09a235f6f34968d08a754_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-01-02_f1aac2c725d09a235f6f34968d08a754_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2836

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
fb21e4a83591168901142aaccde69bd0

SHA1
1c08f260b5abe478cb62003a5a5d5f8c319f01ba

SHA256
746863622dbb5aae5c54cf03d50bdd23074e0001fdfddff6d70bb3156a86dff9

SHA512
753e5e514f2d3c22b2469f8d532b6138ecf70975e7198aead8502f558b43a8ec21a1b67463ea81fdbd4d11d259ff6969944ef9549603a8acf84f44c09037db90

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Analysis

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