wannacry | 6cc3124dc3466ba24af8ec56604a9fd2ef941af1bf4dd074486827a61c3802ac

General

Target

2024-11-30_9285aec54c3fa5a88f1dfbbe691820ff_wannacry.exe
Size

3.6MB
MD5

9285aec54c3fa5a88f1dfbbe691820ff
SHA1

8a357d8eaf07ce1f332a4246bc335e33a3aedd29
SHA256

6cc3124dc3466ba24af8ec56604a9fd2ef941af1bf4dd074486827a61c3802ac
SHA512

a8df981ae414cd00f89e7d68d00511b03d4418e654da3df782075ec1b699f9f5cc5c0806764dcca1d020c01d46995efced3befca4761750c970e521b2e0810a7
SSDEEP

49152:XnAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9:XDqPoBhz1aRxcSUDk36SAEdhvxWa9

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 (3318) 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
1892	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	2024-11-30_9285aec54c3fa5a88f1dfbbe691820ff_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-11-30_9285aec54c3fa5a88f1dfbbe691820ff_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	2024-11-30_9285aec54c3fa5a88f1dfbbe691820ff_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-30_9285aec54c3fa5a88f1dfbbe691820ff_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"	2024-11-30_9285aec54c3fa5a88f1dfbbe691820ff_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{27147E16-351B-4ACE-9886-D31CDD831D28}	2024-11-30_9285aec54c3fa5a88f1dfbbe691820ff_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{27147E16-351B-4ACE-9886-D31CDD831D28}\WpadDecision = "0"	2024-11-30_9285aec54c3fa5a88f1dfbbe691820ff_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4e-95-c5-de-d7-f1	2024-11-30_9285aec54c3fa5a88f1dfbbe691820ff_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4e-95-c5-de-d7-f1\WpadDecisionReason = "1"	2024-11-30_9285aec54c3fa5a88f1dfbbe691820ff_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-11-30_9285aec54c3fa5a88f1dfbbe691820ff_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-30_9285aec54c3fa5a88f1dfbbe691820ff_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-11-30_9285aec54c3fa5a88f1dfbbe691820ff_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-11-30_9285aec54c3fa5a88f1dfbbe691820ff_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-11-30_9285aec54c3fa5a88f1dfbbe691820ff_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0110000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-30_9285aec54c3fa5a88f1dfbbe691820ff_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{27147E16-351B-4ACE-9886-D31CDD831D28}\WpadDecisionTime = 50a5fe46e142db01	2024-11-30_9285aec54c3fa5a88f1dfbbe691820ff_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4e-95-c5-de-d7-f1\WpadDecisionTime = 50a5fe46e142db01	2024-11-30_9285aec54c3fa5a88f1dfbbe691820ff_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-11-30_9285aec54c3fa5a88f1dfbbe691820ff_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-30_9285aec54c3fa5a88f1dfbbe691820ff_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-11-30_9285aec54c3fa5a88f1dfbbe691820ff_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-11-30_9285aec54c3fa5a88f1dfbbe691820ff_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{27147E16-351B-4ACE-9886-D31CDD831D28}\WpadDecisionReason = "1"	2024-11-30_9285aec54c3fa5a88f1dfbbe691820ff_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{27147E16-351B-4ACE-9886-D31CDD831D28}\WpadNetworkName = "Network 3"	2024-11-30_9285aec54c3fa5a88f1dfbbe691820ff_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{27147E16-351B-4ACE-9886-D31CDD831D28}\4e-95-c5-de-d7-f1	2024-11-30_9285aec54c3fa5a88f1dfbbe691820ff_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4e-95-c5-de-d7-f1\WpadDecision = "0"	2024-11-30_9285aec54c3fa5a88f1dfbbe691820ff_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-11-30_9285aec54c3fa5a88f1dfbbe691820ff_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-30_9285aec54c3fa5a88f1dfbbe691820ff_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-30_9285aec54c3fa5a88f1dfbbe691820ff_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-30_9285aec54c3fa5a88f1dfbbe691820ff_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-30_9285aec54c3fa5a88f1dfbbe691820ff_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1968
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1892

C:\Users\Admin\AppData\Local\Temp\2024-11-30_9285aec54c3fa5a88f1dfbbe691820ff_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-30_9285aec54c3fa5a88f1dfbbe691820ff_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2620

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

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
3f79b59f7defd742b32f25945972066f

SHA1
1369e32d4ee95b8471ef53e88f13d62796f27444

SHA256
655f6e807027362c9a3bf88d38a958779d136dcb49fd245b2cc7e02aeedd4a0b

SHA512
928057be7cc1df93371b8b46bbe1d6e572ef428e9f0aa928bc4ea071b20676b383ef82f0e5c9f06a651a813b77b87b1fdfc7303b4efec1ab6eeb0dc0f9328c8c

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Analysis

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