wannacry | ca44cdb1f07c43684cd2874fd4e04371f30a218bd571d28a7a5e7a279d6222c7

General

Target

2024-08-21_fd6ded2ba8add6f9739562f9b4999137_wannacry.exe
Size

3.6MB
MD5

fd6ded2ba8add6f9739562f9b4999137
SHA1

af1c132e14974e7c0acd63b7572f6edea8c95731
SHA256

ca44cdb1f07c43684cd2874fd4e04371f30a218bd571d28a7a5e7a279d6222c7
SHA512

9879652f3abbbdd851c124edd5feb81ca0330057e2de47f37b77264d8f18a8ce36e5a908c669cda052bca1771528a7f334c341c1a197787daa6eed3dbb1bbd89
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
Contacts a large (3227) 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
528	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	2024-08-21_fd6ded2ba8add6f9739562f9b4999137_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-08-21_fd6ded2ba8add6f9739562f9b4999137_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	2024-08-21_fd6ded2ba8add6f9739562f9b4999137_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-08-21_fd6ded2ba8add6f9739562f9b4999137_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-08-21_fd6ded2ba8add6f9739562f9b4999137_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-08-21_fd6ded2ba8add6f9739562f9b4999137_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-08-21_fd6ded2ba8add6f9739562f9b4999137_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-08-21_fd6ded2ba8add6f9739562f9b4999137_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-08-21_fd6ded2ba8add6f9739562f9b4999137_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{628C3927-B791-4511-B4E7-F3819ADA65A3}	2024-08-21_fd6ded2ba8add6f9739562f9b4999137_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{628C3927-B791-4511-B4E7-F3819ADA65A3}\WpadDecisionReason = "1"	2024-08-21_fd6ded2ba8add6f9739562f9b4999137_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-08-21_fd6ded2ba8add6f9739562f9b4999137_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-08-21_fd6ded2ba8add6f9739562f9b4999137_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-08-21_fd6ded2ba8add6f9739562f9b4999137_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-08-21_fd6ded2ba8add6f9739562f9b4999137_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-08-21_fd6ded2ba8add6f9739562f9b4999137_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{628C3927-B791-4511-B4E7-F3819ADA65A3}\aa-01-3d-49-c7-0a	2024-08-21_fd6ded2ba8add6f9739562f9b4999137_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\aa-01-3d-49-c7-0a\WpadDecision = "0"	2024-08-21_fd6ded2ba8add6f9739562f9b4999137_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-21_fd6ded2ba8add6f9739562f9b4999137_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-21_fd6ded2ba8add6f9739562f9b4999137_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00b0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-21_fd6ded2ba8add6f9739562f9b4999137_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{628C3927-B791-4511-B4E7-F3819ADA65A3}\WpadDecision = "0"	2024-08-21_fd6ded2ba8add6f9739562f9b4999137_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{628C3927-B791-4511-B4E7-F3819ADA65A3}\WpadNetworkName = "Network 3"	2024-08-21_fd6ded2ba8add6f9739562f9b4999137_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\aa-01-3d-49-c7-0a	2024-08-21_fd6ded2ba8add6f9739562f9b4999137_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\aa-01-3d-49-c7-0a\WpadDecisionTime = 1095f8e7aef3da01	2024-08-21_fd6ded2ba8add6f9739562f9b4999137_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-08-21_fd6ded2ba8add6f9739562f9b4999137_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{628C3927-B791-4511-B4E7-F3819ADA65A3}\WpadDecisionTime = 1095f8e7aef3da01	2024-08-21_fd6ded2ba8add6f9739562f9b4999137_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\aa-01-3d-49-c7-0a\WpadDecisionReason = "1"	2024-08-21_fd6ded2ba8add6f9739562f9b4999137_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-08-21_fd6ded2ba8add6f9739562f9b4999137_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-21_fd6ded2ba8add6f9739562f9b4999137_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2440
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:528

C:\Users\Admin\AppData\Local\Temp\2024-08-21_fd6ded2ba8add6f9739562f9b4999137_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-08-21_fd6ded2ba8add6f9739562f9b4999137_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2432

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

Loading Replay Monitor...

Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
2b155ed5564477bc12b85015459bc903

SHA1
42a2df1c7d5fed84650a9b24f577c728efbd6feb

SHA256
a3c95d62f915aa464b139e5567832bd25e534afa2e699fb48f0f6a8be7a4cdd0

SHA512
1ca3db5e716e42f0cfaf884640b1b1797ebe5f31319992897701eea7aa96111ef01d0e802b8839aca6cd7645f2d1e3d1b7e8acb6bee26ba659ecfb12521c2ba6

Download Submit

Analysis

Sharing