wannacry | 11db7bbf963678a44df09acefa2cb75a5580d8a02608867b07939895e1b3756f

General

Target

2024-08-23_5feb524b16e77125ca39cea8663cf061_wannacry.exe
Size

3.6MB
MD5

5feb524b16e77125ca39cea8663cf061
SHA1

a9df909ff44cefae2db5e70c19094b42cbd121e0
SHA256

11db7bbf963678a44df09acefa2cb75a5580d8a02608867b07939895e1b3756f
SHA512

6514a92c3ad20b291dd2e25eefc9f068fa7b584eefd53a45f3db7e662567ef478149b21071dfb13e203722d7234bcf455d1ea706ac7f28496ee7576028c8121b
SSDEEP

49152:2nAQqMSPbcBVQej/1IN/A6SAAgR8yAH1plAHI:yDqPoBhz1a/A6SApR8yAVp2HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3209) 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
2092	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	2024-08-23_5feb524b16e77125ca39cea8663cf061_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-08-23_5feb524b16e77125ca39cea8663cf061_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	2024-08-23_5feb524b16e77125ca39cea8663cf061_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-08-23_5feb524b16e77125ca39cea8663cf061_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-08-23_5feb524b16e77125ca39cea8663cf061_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-08-23_5feb524b16e77125ca39cea8663cf061_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A7BFCE0B-1293-4EFE-9844-29826F954C0A}	2024-08-23_5feb524b16e77125ca39cea8663cf061_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-84-80-90-f2-bd\WpadDecision = "0"	2024-08-23_5feb524b16e77125ca39cea8663cf061_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-08-23_5feb524b16e77125ca39cea8663cf061_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-08-23_5feb524b16e77125ca39cea8663cf061_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-08-23_5feb524b16e77125ca39cea8663cf061_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-08-23_5feb524b16e77125ca39cea8663cf061_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-84-80-90-f2-bd	2024-08-23_5feb524b16e77125ca39cea8663cf061_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A7BFCE0B-1293-4EFE-9844-29826F954C0A}\0a-84-80-90-f2-bd	2024-08-23_5feb524b16e77125ca39cea8663cf061_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-84-80-90-f2-bd\WpadDecisionReason = "1"	2024-08-23_5feb524b16e77125ca39cea8663cf061_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-08-23_5feb524b16e77125ca39cea8663cf061_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A7BFCE0B-1293-4EFE-9844-29826F954C0A}\WpadDecisionReason = "1"	2024-08-23_5feb524b16e77125ca39cea8663cf061_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A7BFCE0B-1293-4EFE-9844-29826F954C0A}\WpadDecisionTime = 309fa05860f5da01	2024-08-23_5feb524b16e77125ca39cea8663cf061_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A7BFCE0B-1293-4EFE-9844-29826F954C0A}\WpadNetworkName = "Network 3"	2024-08-23_5feb524b16e77125ca39cea8663cf061_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A7BFCE0B-1293-4EFE-9844-29826F954C0A}\WpadDecision = "0"	2024-08-23_5feb524b16e77125ca39cea8663cf061_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-84-80-90-f2-bd\WpadDecisionTime = 309fa05860f5da01	2024-08-23_5feb524b16e77125ca39cea8663cf061_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-08-23_5feb524b16e77125ca39cea8663cf061_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-08-23_5feb524b16e77125ca39cea8663cf061_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-08-23_5feb524b16e77125ca39cea8663cf061_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-08-23_5feb524b16e77125ca39cea8663cf061_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-23_5feb524b16e77125ca39cea8663cf061_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-23_5feb524b16e77125ca39cea8663cf061_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f018a000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-23_5feb524b16e77125ca39cea8663cf061_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-08-23_5feb524b16e77125ca39cea8663cf061_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-23_5feb524b16e77125ca39cea8663cf061_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1232
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2092

C:\Users\Admin\AppData\Local\Temp\2024-08-23_5feb524b16e77125ca39cea8663cf061_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-08-23_5feb524b16e77125ca39cea8663cf061_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2180

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
c257c2ccd02468122f82952f8ee5b567

SHA1
9ac69c85b2a7406aab5d4e061381ef1cdd124153

SHA256
9d1afd85f3d06587436473d9a6475b45f84cd799525b78add5fb646144b8a07b

SHA512
d332e9a8d40dfdd7133e8f506af2cc66912463a1a3b44cbaadc159c0c454e6f406271dc800f531560a6251db5b92b92f8cc33526db7c109255f1504bc85dc2ff

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