wannacry | 11a2d65e0b956632ad073043a7a2faaad9560864cab8073d7c83439bd731abd3

General

Target

2025-03-25_e52c93655189f3eb78c95d84990cf1de_wannacry.exe
Size

3.6MB
MD5

e52c93655189f3eb78c95d84990cf1de
SHA1

0574233abad8b6b245e58bba852f1b69419e5812
SHA256

11a2d65e0b956632ad073043a7a2faaad9560864cab8073d7c83439bd731abd3
SHA512

70e7258786ee5b992a9827462734c3e1b6dd6a1cbd94a3d486e76c6e70a9cad3e47fd850afaafab873eb0dd39b1b66620df37e9faec87e4abcbf0309001a5ce9
SSDEEP

49152:XnAQqMSPbcBVQej/1INRx+TSqTdX1HkQYAARdhnv3AMEcaEau3mAHI:XDqPoBhz1aRxcSUDkVAEdhv3593vHI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Wannacry family
wannacry
Contacts a large (3149) 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
2904	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	2025-03-25_e52c93655189f3eb78c95d84990cf1de_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-03-25_e52c93655189f3eb78c95d84990cf1de_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	2025-03-25_e52c93655189f3eb78c95d84990cf1de_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-03-25_e52c93655189f3eb78c95d84990cf1de_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\{36365AD8-4725-4667-98DC-40FFB490BFFB}\WpadDecisionReason = "1"	2025-03-25_e52c93655189f3eb78c95d84990cf1de_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{36365AD8-4725-4667-98DC-40FFB490BFFB}\WpadDecision = "0"	2025-03-25_e52c93655189f3eb78c95d84990cf1de_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-83-b1-c9-7f-b5\WpadDecisionTime = 10491b678b9ddb01	2025-03-25_e52c93655189f3eb78c95d84990cf1de_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-03-25_e52c93655189f3eb78c95d84990cf1de_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-03-25_e52c93655189f3eb78c95d84990cf1de_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-03-25_e52c93655189f3eb78c95d84990cf1de_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0077000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-03-25_e52c93655189f3eb78c95d84990cf1de_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{36365AD8-4725-4667-98DC-40FFB490BFFB}\16-83-b1-c9-7f-b5	2025-03-25_e52c93655189f3eb78c95d84990cf1de_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-03-25_e52c93655189f3eb78c95d84990cf1de_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-03-25_e52c93655189f3eb78c95d84990cf1de_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-03-25_e52c93655189f3eb78c95d84990cf1de_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-03-25_e52c93655189f3eb78c95d84990cf1de_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-83-b1-c9-7f-b5\WpadDecisionReason = "1"	2025-03-25_e52c93655189f3eb78c95d84990cf1de_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-83-b1-c9-7f-b5\WpadDecision = "0"	2025-03-25_e52c93655189f3eb78c95d84990cf1de_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-03-25_e52c93655189f3eb78c95d84990cf1de_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-03-25_e52c93655189f3eb78c95d84990cf1de_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-03-25_e52c93655189f3eb78c95d84990cf1de_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{36365AD8-4725-4667-98DC-40FFB490BFFB}	2025-03-25_e52c93655189f3eb78c95d84990cf1de_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{36365AD8-4725-4667-98DC-40FFB490BFFB}\WpadDecisionTime = 10491b678b9ddb01	2025-03-25_e52c93655189f3eb78c95d84990cf1de_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{36365AD8-4725-4667-98DC-40FFB490BFFB}\WpadNetworkName = "Network 3"	2025-03-25_e52c93655189f3eb78c95d84990cf1de_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-83-b1-c9-7f-b5	2025-03-25_e52c93655189f3eb78c95d84990cf1de_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-03-25_e52c93655189f3eb78c95d84990cf1de_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-03-25_e52c93655189f3eb78c95d84990cf1de_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-03-25_e52c93655189f3eb78c95d84990cf1de_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-03-25_e52c93655189f3eb78c95d84990cf1de_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-03-25_e52c93655189f3eb78c95d84990cf1de_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2760
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2904

C:\Users\Admin\AppData\Local\Temp\2025-03-25_e52c93655189f3eb78c95d84990cf1de_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-03-25_e52c93655189f3eb78c95d84990cf1de_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2736

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
d55402285af3a6c473a1cc93ff06c5d6

SHA1
8737cf777a899ca5cdc403d6685c84dcd0fe017f

SHA256
01403fa620ef8b97455640eb8a71a9f31a666148ef51e10d2b1b1cf13f0f0497

SHA512
81b153363d85e2e9b0ac50628e676317168d12a74f79aeef76f31096dab3d9101a6fa79bad63336335713209ad7ae4a8c52f83323528e49804baa1e602d8864b

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