wannacry | 977b3381fb3084ebc74a3cbb429e9765d03a48eac8471bdbfdc18a7d2af68a2c

General

Target

2024-12-20_268649add68c17ab621c8686b9ddf3d0_wannacry.exe
Size

5.0MB
MD5

268649add68c17ab621c8686b9ddf3d0
SHA1

52ebab713dfbfa6665684dd779ed71f6c565da4e
SHA256

977b3381fb3084ebc74a3cbb429e9765d03a48eac8471bdbfdc18a7d2af68a2c
SHA512

53d4d7baa62b4b99e7c26697a1413118bfb3fa62e69e2a7f7553f35f54d9aa1886862efe9ee27ea4a62175ca6875fb58e655ec7b2543eaa24f0bac36968afa48
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAA:yDqPoBhz1aRxcSUDk36SA

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 (3172) 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
1948	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	2024-12-20_268649add68c17ab621c8686b9ddf3d0_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-12-20_268649add68c17ab621c8686b9ddf3d0_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	2024-12-20_268649add68c17ab621c8686b9ddf3d0_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-20_268649add68c17ab621c8686b9ddf3d0_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-12-20_268649add68c17ab621c8686b9ddf3d0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-12-20_268649add68c17ab621c8686b9ddf3d0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3e-82-68-88-c9-da	2024-12-20_268649add68c17ab621c8686b9ddf3d0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3e-82-68-88-c9-da\WpadDecision = "0"	2024-12-20_268649add68c17ab621c8686b9ddf3d0_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-20_268649add68c17ab621c8686b9ddf3d0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-12-20_268649add68c17ab621c8686b9ddf3d0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-12-20_268649add68c17ab621c8686b9ddf3d0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-12-20_268649add68c17ab621c8686b9ddf3d0_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{898F114D-7C97-486E-9A14-B59BE9EE1443}\WpadNetworkName = "Network 3"	2024-12-20_268649add68c17ab621c8686b9ddf3d0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3e-82-68-88-c9-da\WpadDecisionReason = "1"	2024-12-20_268649add68c17ab621c8686b9ddf3d0_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-12-20_268649add68c17ab621c8686b9ddf3d0_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00f5000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-20_268649add68c17ab621c8686b9ddf3d0_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{898F114D-7C97-486E-9A14-B59BE9EE1443}\WpadDecisionTime = 60add3c2cc52db01	2024-12-20_268649add68c17ab621c8686b9ddf3d0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{898F114D-7C97-486E-9A14-B59BE9EE1443}	2024-12-20_268649add68c17ab621c8686b9ddf3d0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{898F114D-7C97-486E-9A14-B59BE9EE1443}\WpadDecisionReason = "1"	2024-12-20_268649add68c17ab621c8686b9ddf3d0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-20_268649add68c17ab621c8686b9ddf3d0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-20_268649add68c17ab621c8686b9ddf3d0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-12-20_268649add68c17ab621c8686b9ddf3d0_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-20_268649add68c17ab621c8686b9ddf3d0_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-12-20_268649add68c17ab621c8686b9ddf3d0_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-12-20_268649add68c17ab621c8686b9ddf3d0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{898F114D-7C97-486E-9A14-B59BE9EE1443}\WpadDecision = "0"	2024-12-20_268649add68c17ab621c8686b9ddf3d0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{898F114D-7C97-486E-9A14-B59BE9EE1443}\3e-82-68-88-c9-da	2024-12-20_268649add68c17ab621c8686b9ddf3d0_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3e-82-68-88-c9-da\WpadDecisionTime = 60add3c2cc52db01	2024-12-20_268649add68c17ab621c8686b9ddf3d0_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-20_268649add68c17ab621c8686b9ddf3d0_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-20_268649add68c17ab621c8686b9ddf3d0_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:1948

C:\Users\Admin\AppData\Local\Temp\2024-12-20_268649add68c17ab621c8686b9ddf3d0_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-12-20_268649add68c17ab621c8686b9ddf3d0_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2332

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
e36210a397bffab93372523e7a0b9ac3

SHA1
a787b834ebea2f4463ba478a808c6514c78c87d2

SHA256
584553664dc9dd0db9c064cdccd9b20165d97f1df4e676bc8f1a268afd2cb2a4

SHA512
1eb8b92f38ca1abc0b364f007f77132c664d2cf3da6241586d9dd8b5c3f243bdb8bd10847630648f2a235b3db4c5439d2dabfbd39e2942b1371e7f17521a0f9e

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