wannacry | 9357f14302ac884843690cb757c22dc29842fc364d10555abbbf2cccdef62406

General

Target

202409261ad50dfabb7bd22fa667ade85c9a0d20wannacry.exe
Size

5.0MB
MD5

1ad50dfabb7bd22fa667ade85c9a0d20
SHA1

1254e620f00150698ffa2ce13d0e95c8be3a3145
SHA256

9357f14302ac884843690cb757c22dc29842fc364d10555abbbf2cccdef62406
SHA512

1193e57c7351e0e773535304f3f201453b4e50887f8dafaaea25e33415524cca8980289100aa17019c11fbf9efcc76ac95b1a6a7009fab67b445b0d75f504f16
SSDEEP

49152:XnAQqMSPbcAQej/1INRx+TSqTdX1HkQo6SAA:XDqPooz1aRxcSUDk36SA

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3207) 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
2792	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	202409261ad50dfabb7bd22fa667ade85c9a0d20wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	202409261ad50dfabb7bd22fa667ade85c9a0d20wannacry.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	202409261ad50dfabb7bd22fa667ade85c9a0d20wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	202409261ad50dfabb7bd22fa667ade85c9a0d20wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	202409261ad50dfabb7bd22fa667ade85c9a0d20wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	202409261ad50dfabb7bd22fa667ade85c9a0d20wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	202409261ad50dfabb7bd22fa667ade85c9a0d20wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0172000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	202409261ad50dfabb7bd22fa667ade85c9a0d20wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BB91B94E-CF2E-413F-860C-58A0285FC2B6}\WpadDecision = "0"	202409261ad50dfabb7bd22fa667ade85c9a0d20wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	202409261ad50dfabb7bd22fa667ade85c9a0d20wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	202409261ad50dfabb7bd22fa667ade85c9a0d20wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	202409261ad50dfabb7bd22fa667ade85c9a0d20wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BB91B94E-CF2E-413F-860C-58A0285FC2B6}	202409261ad50dfabb7bd22fa667ade85c9a0d20wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BB91B94E-CF2E-413F-860C-58A0285FC2B6}\WpadDecisionReason = "1"	202409261ad50dfabb7bd22fa667ade85c9a0d20wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ce-be-0b-22-a5-84\WpadDecisionReason = "1"	202409261ad50dfabb7bd22fa667ade85c9a0d20wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ce-be-0b-22-a5-84\WpadDecision = "0"	202409261ad50dfabb7bd22fa667ade85c9a0d20wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	202409261ad50dfabb7bd22fa667ade85c9a0d20wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	202409261ad50dfabb7bd22fa667ade85c9a0d20wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ce-be-0b-22-a5-84	202409261ad50dfabb7bd22fa667ade85c9a0d20wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BB91B94E-CF2E-413F-860C-58A0285FC2B6}\ce-be-0b-22-a5-84	202409261ad50dfabb7bd22fa667ade85c9a0d20wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ce-be-0b-22-a5-84\WpadDecisionTime = 50a4386e0e10db01	202409261ad50dfabb7bd22fa667ade85c9a0d20wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	202409261ad50dfabb7bd22fa667ade85c9a0d20wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	202409261ad50dfabb7bd22fa667ade85c9a0d20wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	202409261ad50dfabb7bd22fa667ade85c9a0d20wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	202409261ad50dfabb7bd22fa667ade85c9a0d20wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	202409261ad50dfabb7bd22fa667ade85c9a0d20wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BB91B94E-CF2E-413F-860C-58A0285FC2B6}\WpadDecisionTime = 50a4386e0e10db01	202409261ad50dfabb7bd22fa667ade85c9a0d20wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BB91B94E-CF2E-413F-860C-58A0285FC2B6}\WpadNetworkName = "Network 3"	202409261ad50dfabb7bd22fa667ade85c9a0d20wannacry.exe

C:\Users\Admin\AppData\Local\Temp\202409261ad50dfabb7bd22fa667ade85c9a0d20wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\202409261ad50dfabb7bd22fa667ade85c9a0d20wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2104
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2792

C:\Users\Admin\AppData\Local\Temp\202409261ad50dfabb7bd22fa667ade85c9a0d20wannacry.exe
C:\Users\Admin\AppData\Local\Temp\202409261ad50dfabb7bd22fa667ade85c9a0d20wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2680

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
ea0ea0ea78f9e26fc581531713c820c3

SHA1
fa2e6d12aac25a5b080718f7544f8e471a159141

SHA256
5c5de278da2d4595049b8af4c2c098d1af6366a09b23c9f4c324bc0605376224

SHA512
adb3af71a8bd17379dbd2841d084ee661cc053c1930f22c01d02b433633c4e0a3f2ad4d3c26a8e570baa47e7c17c58ee6f31dc6c860330caa8a619c0b3f03b6e

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