wannacry | fbe06f32e90c0ef8eaae1f83db11d0acb536a4db256fd8362281c15b136308cf

General

Target
2024-10-12_9635a1ad8656ee6143fdc71b51c180db_wannacry.exe
Size 3.6MB
Sample241012-e7ptfsyakl
SHA256 fbe06f32e90c0ef8eaae1f83db11d0acb536a4db256fd8362281c15b136308cf
MD5 9635a1ad8656ee6143fdc71b51c180db
SHA1 27326caf9d812fa0f5944ff9a8f9dc04130c929f
SHA512 fccc92604f41b7050a80926128ae338593f9d2645624b9f262e030520ccdb52a48cacdaa47a0e62f6b32dc9f3774daabca00037e5c6bc7643af75131561ed215
SSDEEP 49152:2nAQqMSPbcBVQej/1kQoRdivBJM0H9PAMEcaEau3R8yAH1:yDqPoBhz1kldKBWa9P593R8yAV
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3054) 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
2076	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_9635a1ad8656ee6143fdc71b51c180db_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-12_9635a1ad8656ee6143fdc71b51c180db_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_9635a1ad8656ee6143fdc71b51c180db_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-12_9635a1ad8656ee6143fdc71b51c180db_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_9635a1ad8656ee6143fdc71b51c180db_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-12_9635a1ad8656ee6143fdc71b51c180db_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2BBFA700-23CB-4E1A-8ED1-1E2C83FC60FE}\WpadNetworkName = "Network 3"	2024-10-12_9635a1ad8656ee6143fdc71b51c180db_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\da-2e-fd-af-0b-c9	2024-10-12_9635a1ad8656ee6143fdc71b51c180db_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-12_9635a1ad8656ee6143fdc71b51c180db_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_9635a1ad8656ee6143fdc71b51c180db_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_9635a1ad8656ee6143fdc71b51c180db_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-12_9635a1ad8656ee6143fdc71b51c180db_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-12_9635a1ad8656ee6143fdc71b51c180db_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-12_9635a1ad8656ee6143fdc71b51c180db_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0198000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_9635a1ad8656ee6143fdc71b51c180db_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2BBFA700-23CB-4E1A-8ED1-1E2C83FC60FE}\WpadDecisionReason = "1"	2024-10-12_9635a1ad8656ee6143fdc71b51c180db_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_9635a1ad8656ee6143fdc71b51c180db_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\da-2e-fd-af-0b-c9\WpadDecisionReason = "1"	2024-10-12_9635a1ad8656ee6143fdc71b51c180db_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2BBFA700-23CB-4E1A-8ED1-1E2C83FC60FE}\da-2e-fd-af-0b-c9	2024-10-12_9635a1ad8656ee6143fdc71b51c180db_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-12_9635a1ad8656ee6143fdc71b51c180db_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-12_9635a1ad8656ee6143fdc71b51c180db_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2BBFA700-23CB-4E1A-8ED1-1E2C83FC60FE}	2024-10-12_9635a1ad8656ee6143fdc71b51c180db_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2BBFA700-23CB-4E1A-8ED1-1E2C83FC60FE}\WpadDecisionTime = 80059121601cdb01	2024-10-12_9635a1ad8656ee6143fdc71b51c180db_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\da-2e-fd-af-0b-c9\WpadDecisionTime = 80059121601cdb01	2024-10-12_9635a1ad8656ee6143fdc71b51c180db_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\da-2e-fd-af-0b-c9\WpadDecision = "0"	2024-10-12_9635a1ad8656ee6143fdc71b51c180db_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-12_9635a1ad8656ee6143fdc71b51c180db_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2BBFA700-23CB-4E1A-8ED1-1E2C83FC60FE}\WpadDecision = "0"	2024-10-12_9635a1ad8656ee6143fdc71b51c180db_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-12_9635a1ad8656ee6143fdc71b51c180db_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-12_9635a1ad8656ee6143fdc71b51c180db_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_9635a1ad8656ee6143fdc71b51c180db_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2316
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2076

C:\Users\Admin\AppData\Local\Temp\2024-10-12_9635a1ad8656ee6143fdc71b51c180db_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-12_9635a1ad8656ee6143fdc71b51c180db_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:544

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

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Downloads

tasksche.exe

Path C:\Windows\tasksche.exe
Size 3.4MB
SHA256 0d7e3bdcc68f7f5c067dbec3b052e0f13968defcdc4ced7de7e6a7a7c5af50e3
MD5 9e03a67d9c12d5a8827f488b6cf68642
SHA1 ace84c7684dc8fa2bc42e61e9d80e1db75a6508e
SHA512 10750b3a87832c6de12d28a9542fd43bb09ab0866cf6e002300416bfcf61be561990cf4d696079ac255f93a3f3e947496d2a238a532deea7e60d3d84551d0f68
SSDEEP 49152:nQqMSPbcBVQej/1kQoRdivBJM0H9PAMEcaEau3R8yAH1:QqPoBhz1kldKBWa9P593R8yAV
MD5 SHA1 SHA512 SSDEEP

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