wannacry | 34bb0c2793932aca9a909c14c45332840164e68ca4ff152a0d9559b5a2fbe9e7

General

Target

2024-11-18_9914c4ab6fac53ac9ee9aeb6bd13654a_wannacry.exe
Size

3.6MB
MD5

9914c4ab6fac53ac9ee9aeb6bd13654a
SHA1

01ca90b66328fbbe8092e9fc73cc316de4e7429b
SHA256

34bb0c2793932aca9a909c14c45332840164e68ca4ff152a0d9559b5a2fbe9e7
SHA512

acf5361a69f81658abe8296e85ea59d66d8592889052114a5aec1acd2945425fef0e2fef1b905f374a4e8389b0154663299394d359dad0b41cc64a1d96affa03
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAAx:yDqPoBhz1aRxcSUDk36SAS

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 (3150) 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
1540	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	2024-11-18_9914c4ab6fac53ac9ee9aeb6bd13654a_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-11-18_9914c4ab6fac53ac9ee9aeb6bd13654a_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	2024-11-18_9914c4ab6fac53ac9ee9aeb6bd13654a_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-18_9914c4ab6fac53ac9ee9aeb6bd13654a_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-18_9914c4ab6fac53ac9ee9aeb6bd13654a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-11-18_9914c4ab6fac53ac9ee9aeb6bd13654a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-11-18_9914c4ab6fac53ac9ee9aeb6bd13654a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6B141442-7616-4C21-908A-1F9D7B581A19}\WpadDecision = "0"	2024-11-18_9914c4ab6fac53ac9ee9aeb6bd13654a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6B141442-7616-4C21-908A-1F9D7B581A19}\6e-d4-8c-f1-46-39	2024-11-18_9914c4ab6fac53ac9ee9aeb6bd13654a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\6e-d4-8c-f1-46-39\WpadDecision = "0"	2024-11-18_9914c4ab6fac53ac9ee9aeb6bd13654a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-18_9914c4ab6fac53ac9ee9aeb6bd13654a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-11-18_9914c4ab6fac53ac9ee9aeb6bd13654a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6B141442-7616-4C21-908A-1F9D7B581A19}	2024-11-18_9914c4ab6fac53ac9ee9aeb6bd13654a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\6e-d4-8c-f1-46-39	2024-11-18_9914c4ab6fac53ac9ee9aeb6bd13654a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-11-18_9914c4ab6fac53ac9ee9aeb6bd13654a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-11-18_9914c4ab6fac53ac9ee9aeb6bd13654a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6B141442-7616-4C21-908A-1F9D7B581A19}\WpadDecisionReason = "1"	2024-11-18_9914c4ab6fac53ac9ee9aeb6bd13654a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6B141442-7616-4C21-908A-1F9D7B581A19}\WpadNetworkName = "Network 3"	2024-11-18_9914c4ab6fac53ac9ee9aeb6bd13654a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-18_9914c4ab6fac53ac9ee9aeb6bd13654a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-11-18_9914c4ab6fac53ac9ee9aeb6bd13654a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-11-18_9914c4ab6fac53ac9ee9aeb6bd13654a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-11-18_9914c4ab6fac53ac9ee9aeb6bd13654a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\6e-d4-8c-f1-46-39\WpadDecisionReason = "1"	2024-11-18_9914c4ab6fac53ac9ee9aeb6bd13654a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\6e-d4-8c-f1-46-39\WpadDecisionTime = b0056cc37c39db01	2024-11-18_9914c4ab6fac53ac9ee9aeb6bd13654a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-18_9914c4ab6fac53ac9ee9aeb6bd13654a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-11-18_9914c4ab6fac53ac9ee9aeb6bd13654a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00bb000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-18_9914c4ab6fac53ac9ee9aeb6bd13654a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6B141442-7616-4C21-908A-1F9D7B581A19}\WpadDecisionTime = b0056cc37c39db01	2024-11-18_9914c4ab6fac53ac9ee9aeb6bd13654a_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-18_9914c4ab6fac53ac9ee9aeb6bd13654a_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-18_9914c4ab6fac53ac9ee9aeb6bd13654a_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1864
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1540

C:\Users\Admin\AppData\Local\Temp\2024-11-18_9914c4ab6fac53ac9ee9aeb6bd13654a_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-18_9914c4ab6fac53ac9ee9aeb6bd13654a_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2316

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
b7a934dc7b6f7462973220f013fa12bf

SHA1
ff462256eb28b9c9d6b2763b24c52f814896c627

SHA256
0620384d53892018781a7cda74c5e75ef2d63405e09630c17827196690a5774c

SHA512
7384bd7fbe9db4222474d2fb56f51f8acf326830fa26cdc430d6a9b2bf5b138a2aa9a9f8491c34aba0ac1ecabb1ebfbb7f0ca826acc3babdad6005d584f67def

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Analysis

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