wannacry | 8ea8d1f743eb958af70a9e3c6d1127995c60af96abb8a0654647631f0fbfe7b6

General

Target

2024-10-05_71a5ae65fb56e95cc0eddb92ffa8685a_wannacry.exe
Size

3.6MB
MD5

71a5ae65fb56e95cc0eddb92ffa8685a
SHA1

5edc527213f33b8c7a064f7f677a17ce05f914eb
SHA256

8ea8d1f743eb958af70a9e3c6d1127995c60af96abb8a0654647631f0fbfe7b6
SHA512

8a36f7b50c0022f6a3d21a76aef53b59ed8d658dd1b6493e8f89ca04d2e1de9d7c11ad0e33d2d2a508db0cec1727875f748f1cd55081e4739a6a10f12a395201
SSDEEP

98304:XDqPoBhz1aRxcSUDk36SAmxWa9P5qAVp2Bj:XDqPe1Cxcxk3ZA5adYc4Bj

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3275) 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
3068	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	2024-10-05_71a5ae65fb56e95cc0eddb92ffa8685a_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-05_71a5ae65fb56e95cc0eddb92ffa8685a_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	2024-10-05_71a5ae65fb56e95cc0eddb92ffa8685a_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-05_71a5ae65fb56e95cc0eddb92ffa8685a_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\{717F64BA-BD50-4BEF-9EEE-7750A2E58079}\WpadDecisionReason = "1"	2024-10-05_71a5ae65fb56e95cc0eddb92ffa8685a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{717F64BA-BD50-4BEF-9EEE-7750A2E58079}\WpadNetworkName = "Network 3"	2024-10-05_71a5ae65fb56e95cc0eddb92ffa8685a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\da-61-d2-f2-ff-2b\WpadDecisionReason = "1"	2024-10-05_71a5ae65fb56e95cc0eddb92ffa8685a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{717F64BA-BD50-4BEF-9EEE-7750A2E58079}\WpadDecisionTime = 1022335e6617db01	2024-10-05_71a5ae65fb56e95cc0eddb92ffa8685a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-05_71a5ae65fb56e95cc0eddb92ffa8685a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-05_71a5ae65fb56e95cc0eddb92ffa8685a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-05_71a5ae65fb56e95cc0eddb92ffa8685a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-05_71a5ae65fb56e95cc0eddb92ffa8685a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-05_71a5ae65fb56e95cc0eddb92ffa8685a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-05_71a5ae65fb56e95cc0eddb92ffa8685a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{717F64BA-BD50-4BEF-9EEE-7750A2E58079}	2024-10-05_71a5ae65fb56e95cc0eddb92ffa8685a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\da-61-d2-f2-ff-2b\WpadDecisionTime = 1022335e6617db01	2024-10-05_71a5ae65fb56e95cc0eddb92ffa8685a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\da-61-d2-f2-ff-2b\WpadDecision = "0"	2024-10-05_71a5ae65fb56e95cc0eddb92ffa8685a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-05_71a5ae65fb56e95cc0eddb92ffa8685a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-05_71a5ae65fb56e95cc0eddb92ffa8685a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-05_71a5ae65fb56e95cc0eddb92ffa8685a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0195000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-05_71a5ae65fb56e95cc0eddb92ffa8685a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{717F64BA-BD50-4BEF-9EEE-7750A2E58079}\WpadDecision = "0"	2024-10-05_71a5ae65fb56e95cc0eddb92ffa8685a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{717F64BA-BD50-4BEF-9EEE-7750A2E58079}\da-61-d2-f2-ff-2b	2024-10-05_71a5ae65fb56e95cc0eddb92ffa8685a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-05_71a5ae65fb56e95cc0eddb92ffa8685a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-05_71a5ae65fb56e95cc0eddb92ffa8685a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-05_71a5ae65fb56e95cc0eddb92ffa8685a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-05_71a5ae65fb56e95cc0eddb92ffa8685a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\da-61-d2-f2-ff-2b	2024-10-05_71a5ae65fb56e95cc0eddb92ffa8685a_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-05_71a5ae65fb56e95cc0eddb92ffa8685a_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-05_71a5ae65fb56e95cc0eddb92ffa8685a_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2644
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:3068

C:\Users\Admin\AppData\Local\Temp\2024-10-05_71a5ae65fb56e95cc0eddb92ffa8685a_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-05_71a5ae65fb56e95cc0eddb92ffa8685a_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2764

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
da23d9da01ad8ee0321c2139e4b20d0e

SHA1
cbed0c81bdbf0afe5ec6a657a11e1a08b82918f9

SHA256
ca4e44dda3249e9fea7153a46ca34dc6dfa0f9d6b28625487cd3df94b69df016

SHA512
ca41caae4fba961aa30f2d26f9e6dd775e9c79c21e0b911e27891afbb26203a5e77109ceb3b5206f4633c146f70403c1fbae3b19b7f68ecb6f35b90059c9a7a3

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Analysis

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