wannacry | 74f7db23b87ef33032e9ac9aac39d7d90538d860512c848e12d06f87af33795e

General

Target

2025-01-01_6812a4773a1895e8cfcc40a51c4c0ae1_wannacry.exe
Size

3.6MB
MD5

6812a4773a1895e8cfcc40a51c4c0ae1
SHA1

894fe56f871d13831fc85370152e0ecb371636c9
SHA256

74f7db23b87ef33032e9ac9aac39d7d90538d860512c848e12d06f87af33795e
SHA512

db0fc6995c4db34d727d3ad7e955da6d441a6f8935477b2aa4a156200ed6dffa61559b3142c76088137361cfc109a33995975d772d1daa55d8e4334c87f1689e
SSDEEP

49152:XnAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAsI6:XDqPoBhz1aRxcSUDk36SAi

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 (3157) 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
2744	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	2025-01-01_6812a4773a1895e8cfcc40a51c4c0ae1_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-01-01_6812a4773a1895e8cfcc40a51c4c0ae1_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	2025-01-01_6812a4773a1895e8cfcc40a51c4c0ae1_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-01_6812a4773a1895e8cfcc40a51c4c0ae1_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\96-9b-24-b5-e1-c8\WpadDecisionReason = "1"	2025-01-01_6812a4773a1895e8cfcc40a51c4c0ae1_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-9b-24-b5-e1-c8\WpadDecisionTime = e0a18632405cdb01	2025-01-01_6812a4773a1895e8cfcc40a51c4c0ae1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-01-01_6812a4773a1895e8cfcc40a51c4c0ae1_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-01-01_6812a4773a1895e8cfcc40a51c4c0ae1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-01-01_6812a4773a1895e8cfcc40a51c4c0ae1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-01-01_6812a4773a1895e8cfcc40a51c4c0ae1_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-01-01_6812a4773a1895e8cfcc40a51c4c0ae1_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-01-01_6812a4773a1895e8cfcc40a51c4c0ae1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{953238C1-3374-47FD-ABFA-F1138ADEC9E6}\WpadDecision = "0"	2025-01-01_6812a4773a1895e8cfcc40a51c4c0ae1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-9b-24-b5-e1-c8	2025-01-01_6812a4773a1895e8cfcc40a51c4c0ae1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-01-01_6812a4773a1895e8cfcc40a51c4c0ae1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-01_6812a4773a1895e8cfcc40a51c4c0ae1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{953238C1-3374-47FD-ABFA-F1138ADEC9E6}	2025-01-01_6812a4773a1895e8cfcc40a51c4c0ae1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-01_6812a4773a1895e8cfcc40a51c4c0ae1_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0107000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-01_6812a4773a1895e8cfcc40a51c4c0ae1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-01-01_6812a4773a1895e8cfcc40a51c4c0ae1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-01-01_6812a4773a1895e8cfcc40a51c4c0ae1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{953238C1-3374-47FD-ABFA-F1138ADEC9E6}\WpadDecisionReason = "1"	2025-01-01_6812a4773a1895e8cfcc40a51c4c0ae1_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{953238C1-3374-47FD-ABFA-F1138ADEC9E6}\WpadDecisionTime = e0a18632405cdb01	2025-01-01_6812a4773a1895e8cfcc40a51c4c0ae1_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{953238C1-3374-47FD-ABFA-F1138ADEC9E6}\WpadNetworkName = "Network 3"	2025-01-01_6812a4773a1895e8cfcc40a51c4c0ae1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{953238C1-3374-47FD-ABFA-F1138ADEC9E6}\96-9b-24-b5-e1-c8	2025-01-01_6812a4773a1895e8cfcc40a51c4c0ae1_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-01_6812a4773a1895e8cfcc40a51c4c0ae1_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-01_6812a4773a1895e8cfcc40a51c4c0ae1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-9b-24-b5-e1-c8\WpadDecision = "0"	2025-01-01_6812a4773a1895e8cfcc40a51c4c0ae1_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-01-01_6812a4773a1895e8cfcc40a51c4c0ae1_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-01_6812a4773a1895e8cfcc40a51c4c0ae1_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2816
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2744

C:\Users\Admin\AppData\Local\Temp\2025-01-01_6812a4773a1895e8cfcc40a51c4c0ae1_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-01-01_6812a4773a1895e8cfcc40a51c4c0ae1_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2892

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
ae99332c21b72147a5a229e65d2bf7f6

SHA1
c9a2db1cfa246f6cf6e5093ba2463047ccd72275

SHA256
3c37426360b04d022f5331ab8f0c83d4801d1f46d2bb3b990cc7b34f4a83ec9f

SHA512
4091ec4b857eebf03a64d969b1c1199e2cd69ea905e2d807b05fd01c1392e8154147caed3d68b41a522c7b4cef3a1240668f05eeb30dd5e97ffa9ecc39680169

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