wannacry | 5c37f710cfd840d74d8c0cc7388f73cadd6e9a98c8ffc030da3628d9eec1ca3e

General

Target

2024-12-20_0246e70eec96cbc2194b7d40cb10420e_wannacry.exe
Size

5.0MB
MD5

0246e70eec96cbc2194b7d40cb10420e
SHA1

ec0d9eecef699b29609db7457ab8405d42bde111
SHA256

5c37f710cfd840d74d8c0cc7388f73cadd6e9a98c8ffc030da3628d9eec1ca3e
SHA512

f519ae30c5b2f63d0548317b5141a859fe70ecf5a2d3590b34d35055ef07a6647b503eaa2c88defb18012023dff5611e273ac4fdc601e6539b8f1ea7d940035b
SSDEEP

49152:XnAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhxxJM0H9:XDqPoBhz1aRxcSUDk36SAEdhxxWa9

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 (3179) 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
3032	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_0246e70eec96cbc2194b7d40cb10420e_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-12-20_0246e70eec96cbc2194b7d40cb10420e_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_0246e70eec96cbc2194b7d40cb10420e_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-20_0246e70eec96cbc2194b7d40cb10420e_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3375283B-47F2-4070-9CC3-06DFF0EEF167}\WpadDecisionReason = "1"	2024-12-20_0246e70eec96cbc2194b7d40cb10420e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3375283B-47F2-4070-9CC3-06DFF0EEF167}\WpadDecisionTime = 60a6338dcc52db01	2024-12-20_0246e70eec96cbc2194b7d40cb10420e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b6-96-00-cc-7d-e0	2024-12-20_0246e70eec96cbc2194b7d40cb10420e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b6-96-00-cc-7d-e0\WpadDecisionReason = "1"	2024-12-20_0246e70eec96cbc2194b7d40cb10420e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-12-20_0246e70eec96cbc2194b7d40cb10420e_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-12-20_0246e70eec96cbc2194b7d40cb10420e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-12-20_0246e70eec96cbc2194b7d40cb10420e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f011c000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-20_0246e70eec96cbc2194b7d40cb10420e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b6-96-00-cc-7d-e0\WpadDecision = "0"	2024-12-20_0246e70eec96cbc2194b7d40cb10420e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-20_0246e70eec96cbc2194b7d40cb10420e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-20_0246e70eec96cbc2194b7d40cb10420e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-20_0246e70eec96cbc2194b7d40cb10420e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-12-20_0246e70eec96cbc2194b7d40cb10420e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-12-20_0246e70eec96cbc2194b7d40cb10420e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-12-20_0246e70eec96cbc2194b7d40cb10420e_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-12-20_0246e70eec96cbc2194b7d40cb10420e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3375283B-47F2-4070-9CC3-06DFF0EEF167}	2024-12-20_0246e70eec96cbc2194b7d40cb10420e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-20_0246e70eec96cbc2194b7d40cb10420e_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-12-20_0246e70eec96cbc2194b7d40cb10420e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3375283B-47F2-4070-9CC3-06DFF0EEF167}\WpadDecision = "0"	2024-12-20_0246e70eec96cbc2194b7d40cb10420e_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3375283B-47F2-4070-9CC3-06DFF0EEF167}\WpadNetworkName = "Network 3"	2024-12-20_0246e70eec96cbc2194b7d40cb10420e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3375283B-47F2-4070-9CC3-06DFF0EEF167}\b6-96-00-cc-7d-e0	2024-12-20_0246e70eec96cbc2194b7d40cb10420e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b6-96-00-cc-7d-e0\WpadDecisionTime = 60a6338dcc52db01	2024-12-20_0246e70eec96cbc2194b7d40cb10420e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-12-20_0246e70eec96cbc2194b7d40cb10420e_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-20_0246e70eec96cbc2194b7d40cb10420e_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-20_0246e70eec96cbc2194b7d40cb10420e_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2932
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:3032

C:\Users\Admin\AppData\Local\Temp\2024-12-20_0246e70eec96cbc2194b7d40cb10420e_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-12-20_0246e70eec96cbc2194b7d40cb10420e_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2784

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
82adabe961e132b1dfe40ab7b2bf3902

SHA1
53becd9ad7adf03ce51db5d2769e2818cc69376b

SHA256
c9abf96976f1b0acce912ea1be595a5fef77fa4b2dfe41a12cbff069e9e09ff1

SHA512
1cd4f18744a8a7e6058c76325485a275391099b71062993eecd96d6d963fbf099ebb395d7acc26aacf497dbebceee63362aff32714873ffe27ed0114e3673549

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Analysis

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