wannacry | 644e69842dc717c1e7a0266071840a1506716b0b60510af1be22c8b01ef5dda3

General

Target

20240923805037e703c6da6193619e142ab5814ewannacry.exe
Size

5.0MB
MD5

805037e703c6da6193619e142ab5814e
SHA1

a665331fe49d17b030d02e4010d592154e031ab4
SHA256

644e69842dc717c1e7a0266071840a1506716b0b60510af1be22c8b01ef5dda3
SHA512

5de8249b7b7d9b035c10b8d42aad3cbc32b1aab033c45b2f6a1787a496748cb79a360af7dcc681e804b97c90a736ee7f232fe0496d751683c7bc36c71e35a71b
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9:yDqPoBhz1aRxcSUDk36SAEdhvxWa9

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3168) 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
2860	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	20240923805037e703c6da6193619e142ab5814ewannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	20240923805037e703c6da6193619e142ab5814ewannacry.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	20240923805037e703c6da6193619e142ab5814ewannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	20240923805037e703c6da6193619e142ab5814ewannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\72-3d-03-6b-26-f2\WpadDecision = "0"	20240923805037e703c6da6193619e142ab5814ewannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	20240923805037e703c6da6193619e142ab5814ewannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F5D4FD4F-2F39-4FD7-8907-1D1F1B6F9E0E}\WpadDecisionReason = "1"	20240923805037e703c6da6193619e142ab5814ewannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\72-3d-03-6b-26-f2	20240923805037e703c6da6193619e142ab5814ewannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\72-3d-03-6b-26-f2\WpadDecisionReason = "1"	20240923805037e703c6da6193619e142ab5814ewannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	20240923805037e703c6da6193619e142ab5814ewannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	20240923805037e703c6da6193619e142ab5814ewannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\72-3d-03-6b-26-f2\WpadDecisionTime = a004014d040edb01	20240923805037e703c6da6193619e142ab5814ewannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	20240923805037e703c6da6193619e142ab5814ewannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	20240923805037e703c6da6193619e142ab5814ewannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	20240923805037e703c6da6193619e142ab5814ewannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	20240923805037e703c6da6193619e142ab5814ewannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F5D4FD4F-2F39-4FD7-8907-1D1F1B6F9E0E}	20240923805037e703c6da6193619e142ab5814ewannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F5D4FD4F-2F39-4FD7-8907-1D1F1B6F9E0E}\WpadDecision = "0"	20240923805037e703c6da6193619e142ab5814ewannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F5D4FD4F-2F39-4FD7-8907-1D1F1B6F9E0E}\WpadNetworkName = "Network 3"	20240923805037e703c6da6193619e142ab5814ewannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F5D4FD4F-2F39-4FD7-8907-1D1F1B6F9E0E}\72-3d-03-6b-26-f2	20240923805037e703c6da6193619e142ab5814ewannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	20240923805037e703c6da6193619e142ab5814ewannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	20240923805037e703c6da6193619e142ab5814ewannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00b8000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	20240923805037e703c6da6193619e142ab5814ewannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F5D4FD4F-2F39-4FD7-8907-1D1F1B6F9E0E}\WpadDecisionTime = a004014d040edb01	20240923805037e703c6da6193619e142ab5814ewannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	20240923805037e703c6da6193619e142ab5814ewannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	20240923805037e703c6da6193619e142ab5814ewannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	20240923805037e703c6da6193619e142ab5814ewannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	20240923805037e703c6da6193619e142ab5814ewannacry.exe

C:\Users\Admin\AppData\Local\Temp\20240923805037e703c6da6193619e142ab5814ewannacry.exe
"C:\Users\Admin\AppData\Local\Temp\20240923805037e703c6da6193619e142ab5814ewannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1860
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2860

C:\Users\Admin\AppData\Local\Temp\20240923805037e703c6da6193619e142ab5814ewannacry.exe
C:\Users\Admin\AppData\Local\Temp\20240923805037e703c6da6193619e142ab5814ewannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1028

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
8522ece13c657d22f3a53f57a36ec1fc

SHA1
a4abf0cbf76842de47b6cb6cd47fc7a3cb36dc3b

SHA256
46a6db41a9539d9aab67ab625bdbb4bb71533d7bb2e912c8f7dd91c87bf1854f

SHA512
591ee1153a59eb816fb715d2f425b8346042a095575c8af25e1bcf0c9b5b852dc69fa83682be6a2839782d2cf92b457767fefd5954a4f88172df5d70ddcdda55

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