wannacry | 95f40978f24362e4cd98d2b60d537c344523af91cf4dc336ec953cb92a1298da

General

Target

2024-10-12_0cb51b6b90b3728b588574755166f1e8_wannacry.exe
Size

3.6MB
MD5

0cb51b6b90b3728b588574755166f1e8
SHA1

7f1f69025c8f3eba509e58c0f6093549db8af5a7
SHA256

95f40978f24362e4cd98d2b60d537c344523af91cf4dc336ec953cb92a1298da
SHA512

c971d4c4dd6b491b171691cfbc485992cfc5019f6eab2b5c3c40d1642127bdfcea59580c7a622a59974c54016dd7f6e36df009c9a8712b49313f4ed3fabe04f5
SSDEEP

24576:2bLgddQhfdGMSirYbcMNgef0QeQjG/D8kIqRYoBn:2nAQKMSPbcBVQej/15

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3225) 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
2576	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_0cb51b6b90b3728b588574755166f1e8_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-12_0cb51b6b90b3728b588574755166f1e8_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_0cb51b6b90b3728b588574755166f1e8_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-12_0cb51b6b90b3728b588574755166f1e8_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:"	2024-10-12_0cb51b6b90b3728b588574755166f1e8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-12_0cb51b6b90b3728b588574755166f1e8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C8D407D2-FAA8-4D7E-A2A0-2151E784D9F4}\WpadDecision = "0"	2024-10-12_0cb51b6b90b3728b588574755166f1e8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ea-1d-e3-ea-d9-a4	2024-10-12_0cb51b6b90b3728b588574755166f1e8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-12_0cb51b6b90b3728b588574755166f1e8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_0cb51b6b90b3728b588574755166f1e8_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_0cb51b6b90b3728b588574755166f1e8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C8D407D2-FAA8-4D7E-A2A0-2151E784D9F4}	2024-10-12_0cb51b6b90b3728b588574755166f1e8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ea-1d-e3-ea-d9-a4\WpadDecisionReason = "1"	2024-10-12_0cb51b6b90b3728b588574755166f1e8_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_0cb51b6b90b3728b588574755166f1e8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-12_0cb51b6b90b3728b588574755166f1e8_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-12_0cb51b6b90b3728b588574755166f1e8_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C8D407D2-FAA8-4D7E-A2A0-2151E784D9F4}\WpadNetworkName = "Network 3"	2024-10-12_0cb51b6b90b3728b588574755166f1e8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C8D407D2-FAA8-4D7E-A2A0-2151E784D9F4}\ea-1d-e3-ea-d9-a4	2024-10-12_0cb51b6b90b3728b588574755166f1e8_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ea-1d-e3-ea-d9-a4\WpadDecisionTime = e0b38227781cdb01	2024-10-12_0cb51b6b90b3728b588574755166f1e8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ea-1d-e3-ea-d9-a4\WpadDecision = "0"	2024-10-12_0cb51b6b90b3728b588574755166f1e8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_0cb51b6b90b3728b588574755166f1e8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-12_0cb51b6b90b3728b588574755166f1e8_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00d4000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_0cb51b6b90b3728b588574755166f1e8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C8D407D2-FAA8-4D7E-A2A0-2151E784D9F4}\WpadDecisionReason = "1"	2024-10-12_0cb51b6b90b3728b588574755166f1e8_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C8D407D2-FAA8-4D7E-A2A0-2151E784D9F4}\WpadDecisionTime = e0b38227781cdb01	2024-10-12_0cb51b6b90b3728b588574755166f1e8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-12_0cb51b6b90b3728b588574755166f1e8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-12_0cb51b6b90b3728b588574755166f1e8_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-12_0cb51b6b90b3728b588574755166f1e8_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-12_0cb51b6b90b3728b588574755166f1e8_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_0cb51b6b90b3728b588574755166f1e8_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2868
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2576

C:\Users\Admin\AppData\Local\Temp\2024-10-12_0cb51b6b90b3728b588574755166f1e8_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-12_0cb51b6b90b3728b588574755166f1e8_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:288

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
a9b9174ea0c648f02aed2815324f743c

SHA1
dc46e4b97973307c572c28d6f8374a85c21709cc

SHA256
0d322257da5349eb0997bc04b88a2b19b84885e2444a784dde194b0e2b1a1438

SHA512
c9b8e22e6439b59f2994eb4e2a7919505f517b57e8c4295ef436fd8a1e96246a47ef864f761294924fa9e163901fbaa593ef8557385a4e913de3505862feadc7

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