wannacry | 7f55e72e3dee26086e8ce591acbb336c1145f04733a1bd7992e25edc64153960

General

Target

2024-10-12_43ab44d66d62a6062356f24cf873cfba_wannacry.exe
Size

3.6MB
MD5

43ab44d66d62a6062356f24cf873cfba
SHA1

7f3db8340c7f44cdf91b6acc3e1e39d569b45118
SHA256

7f55e72e3dee26086e8ce591acbb336c1145f04733a1bd7992e25edc64153960
SHA512

5b9cc174abf2bab917c76a2b0a1f6adeddc230c01a2d9a3e38905f79d0f7721c0dfbdea978f32a06b99c846061ebdc3c9d0965ea230a32c38c0e9c7f139ea6c0
SSDEEP

24576:2bLgddQhfdmMSirYbcMNgef0QeQjG/D8kIqRNK74G6Zwlg:2nAQqMSPbcBVQej/1NKbxlg

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3182) 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
2712	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	2024-10-12_43ab44d66d62a6062356f24cf873cfba_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-12_43ab44d66d62a6062356f24cf873cfba_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	2024-10-12_43ab44d66d62a6062356f24cf873cfba_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-12_43ab44d66d62a6062356f24cf873cfba_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\26-98-ec-9e-e0-86\WpadDecision = "0"	2024-10-12_43ab44d66d62a6062356f24cf873cfba_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-12_43ab44d66d62a6062356f24cf873cfba_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-12_43ab44d66d62a6062356f24cf873cfba_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-12_43ab44d66d62a6062356f24cf873cfba_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00e4000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_43ab44d66d62a6062356f24cf873cfba_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3AC6417B-40AA-438B-B999-F0987870F09D}\WpadDecision = "0"	2024-10-12_43ab44d66d62a6062356f24cf873cfba_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\26-98-ec-9e-e0-86\WpadDecisionTime = 608e1c68571cdb01	2024-10-12_43ab44d66d62a6062356f24cf873cfba_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_43ab44d66d62a6062356f24cf873cfba_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_43ab44d66d62a6062356f24cf873cfba_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-12_43ab44d66d62a6062356f24cf873cfba_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-12_43ab44d66d62a6062356f24cf873cfba_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\26-98-ec-9e-e0-86	2024-10-12_43ab44d66d62a6062356f24cf873cfba_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\26-98-ec-9e-e0-86\WpadDecisionReason = "1"	2024-10-12_43ab44d66d62a6062356f24cf873cfba_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3AC6417B-40AA-438B-B999-F0987870F09D}\26-98-ec-9e-e0-86	2024-10-12_43ab44d66d62a6062356f24cf873cfba_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_43ab44d66d62a6062356f24cf873cfba_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-12_43ab44d66d62a6062356f24cf873cfba_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_43ab44d66d62a6062356f24cf873cfba_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-12_43ab44d66d62a6062356f24cf873cfba_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3AC6417B-40AA-438B-B999-F0987870F09D}	2024-10-12_43ab44d66d62a6062356f24cf873cfba_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3AC6417B-40AA-438B-B999-F0987870F09D}\WpadNetworkName = "Network 3"	2024-10-12_43ab44d66d62a6062356f24cf873cfba_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-12_43ab44d66d62a6062356f24cf873cfba_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-12_43ab44d66d62a6062356f24cf873cfba_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3AC6417B-40AA-438B-B999-F0987870F09D}\WpadDecisionReason = "1"	2024-10-12_43ab44d66d62a6062356f24cf873cfba_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3AC6417B-40AA-438B-B999-F0987870F09D}\WpadDecisionTime = 608e1c68571cdb01	2024-10-12_43ab44d66d62a6062356f24cf873cfba_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-12_43ab44d66d62a6062356f24cf873cfba_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_43ab44d66d62a6062356f24cf873cfba_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2084
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2712

C:\Users\Admin\AppData\Local\Temp\2024-10-12_43ab44d66d62a6062356f24cf873cfba_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-12_43ab44d66d62a6062356f24cf873cfba_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2816

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
5004b11493279472867aa5025a5686be

SHA1
751bdf4a001fc1e0d70ca741ade57e9aedb15e80

SHA256
1e29b1deed2061f62a68e7e14c8ff2ad58e7eb7e7d65343561147fe84e68acd1

SHA512
3929cb7d584014394596f58269dd43eda9664ea0e02c03aa2204bf98ed1d5c2a7ea937608d56a475c963898ba623fc176259b9ec7b93e5abb56951892b97efb5

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Analysis

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