wannacry | 92da701e9671fe6423bc7767944fcaeb721f5c3087cabad1867bc9db06343b77

General

Target

2024-10-11_65b8c922497a18c482828c51e95b9f06_wannacry.exe
Size

3.6MB
MD5

65b8c922497a18c482828c51e95b9f06
SHA1

854147edb06d7c71bb252297f17018f6491d8a51
SHA256

92da701e9671fe6423bc7767944fcaeb721f5c3087cabad1867bc9db06343b77
SHA512

f55ccd5a755622a2989862be0ec684de1abfdf71e5aabc76f3d619ed73f37c411fe8619158580ca3d2a00baa14ecc1221715ea95b12ab6545243bc88ce42fe3b
SSDEEP

98304:XDqPoBhz1aRASUDk36SAEdhvxWa9P593R8yAVp2HI:XDqPe1CAxk3ZAEUadzR8yc4HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3211) 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
1832	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	2024-10-11_65b8c922497a18c482828c51e95b9f06_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-11_65b8c922497a18c482828c51e95b9f06_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	2024-10-11_65b8c922497a18c482828c51e95b9f06_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-11_65b8c922497a18c482828c51e95b9f06_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\UNCAsIntranet = "0"	2024-10-11_65b8c922497a18c482828c51e95b9f06_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00ac000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-11_65b8c922497a18c482828c51e95b9f06_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5B58A9E5-6F6D-4082-BA6E-E64238A3FA17}\WpadNetworkName = "Network 2"	2024-10-11_65b8c922497a18c482828c51e95b9f06_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ca-f9-ee-d7-09-46	2024-10-11_65b8c922497a18c482828c51e95b9f06_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-11_65b8c922497a18c482828c51e95b9f06_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-11_65b8c922497a18c482828c51e95b9f06_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-11_65b8c922497a18c482828c51e95b9f06_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-11_65b8c922497a18c482828c51e95b9f06_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-11_65b8c922497a18c482828c51e95b9f06_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5B58A9E5-6F6D-4082-BA6E-E64238A3FA17}\WpadDecisionTime = 009521bb771bdb01	2024-10-11_65b8c922497a18c482828c51e95b9f06_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5B58A9E5-6F6D-4082-BA6E-E64238A3FA17}\WpadDecision = "0"	2024-10-11_65b8c922497a18c482828c51e95b9f06_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ca-f9-ee-d7-09-46\WpadDecisionReason = "1"	2024-10-11_65b8c922497a18c482828c51e95b9f06_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ca-f9-ee-d7-09-46\WpadDecisionTime = 009521bb771bdb01	2024-10-11_65b8c922497a18c482828c51e95b9f06_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ca-f9-ee-d7-09-46\WpadDecision = "0"	2024-10-11_65b8c922497a18c482828c51e95b9f06_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-11_65b8c922497a18c482828c51e95b9f06_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-11_65b8c922497a18c482828c51e95b9f06_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-11_65b8c922497a18c482828c51e95b9f06_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-11_65b8c922497a18c482828c51e95b9f06_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-11_65b8c922497a18c482828c51e95b9f06_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-11_65b8c922497a18c482828c51e95b9f06_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-11_65b8c922497a18c482828c51e95b9f06_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5B58A9E5-6F6D-4082-BA6E-E64238A3FA17}	2024-10-11_65b8c922497a18c482828c51e95b9f06_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5B58A9E5-6F6D-4082-BA6E-E64238A3FA17}\WpadDecisionReason = "1"	2024-10-11_65b8c922497a18c482828c51e95b9f06_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5B58A9E5-6F6D-4082-BA6E-E64238A3FA17}\ca-f9-ee-d7-09-46	2024-10-11_65b8c922497a18c482828c51e95b9f06_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-11_65b8c922497a18c482828c51e95b9f06_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-11_65b8c922497a18c482828c51e95b9f06_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2508
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1832

C:\Users\Admin\AppData\Local\Temp\2024-10-11_65b8c922497a18c482828c51e95b9f06_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-11_65b8c922497a18c482828c51e95b9f06_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2540

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
53d25b50c8aaa4659ce17d2df26a6bf6

SHA1
0b668d395f7a06bd126b4fba2bf84362bfa9c77a

SHA256
fd90364420c52d312809ec700cf7ba7b620e8c653f0ddbf44bbcbe9da68e4ae4

SHA512
9e4faa2e31960e2c5769d6a1814edcf17232a29dda68f3d3286b69ed58178814e645a909c11be88d4cbe53010f1fda533b7b9f16298761225ce709213e687009

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Analysis

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