wannacry | 112ad9dbab06d887ac3a5b7ca6a2ddd772762980f93926bd381efd7d34a251c0

General

Target

2024-08-29_b3c5f714084f79d8676b9fb29f45db6a_wannacry.exe
Size

3.6MB
MD5

b3c5f714084f79d8676b9fb29f45db6a
SHA1

970738b9221414e237b354df4ff96c295718684f
SHA256

112ad9dbab06d887ac3a5b7ca6a2ddd772762980f93926bd381efd7d34a251c0
SHA512

6c471561ad12eef8619b088534b654b5a6358d3ffd5b3f2a086211021a6b3bcc6d1b14688258e791cc20028c5cc2f2ce3c900ca3639b39626af8976231fef135
SSDEEP

49152:XnAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0HYl:XDqPoBhz1aRxcSUDk36SAEdhvxWaO

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3307) 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
2812	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	2024-08-29_b3c5f714084f79d8676b9fb29f45db6a_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-08-29_b3c5f714084f79d8676b9fb29f45db6a_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	2024-08-29_b3c5f714084f79d8676b9fb29f45db6a_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-08-29_b3c5f714084f79d8676b9fb29f45db6a_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-08-29_b3c5f714084f79d8676b9fb29f45db6a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-08-29_b3c5f714084f79d8676b9fb29f45db6a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-08-29_b3c5f714084f79d8676b9fb29f45db6a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0D7445F0-0C9B-4476-BE1B-727DD6AEF0C0}	2024-08-29_b3c5f714084f79d8676b9fb29f45db6a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\36-1b-f9-f6-10-b1\WpadDecisionReason = "1"	2024-08-29_b3c5f714084f79d8676b9fb29f45db6a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0D7445F0-0C9B-4476-BE1B-727DD6AEF0C0}\WpadDecision = "0"	2024-08-29_b3c5f714084f79d8676b9fb29f45db6a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-08-29_b3c5f714084f79d8676b9fb29f45db6a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-29_b3c5f714084f79d8676b9fb29f45db6a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-29_b3c5f714084f79d8676b9fb29f45db6a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-08-29_b3c5f714084f79d8676b9fb29f45db6a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-08-29_b3c5f714084f79d8676b9fb29f45db6a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0029000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-29_b3c5f714084f79d8676b9fb29f45db6a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0D7445F0-0C9B-4476-BE1B-727DD6AEF0C0}\WpadDecisionReason = "1"	2024-08-29_b3c5f714084f79d8676b9fb29f45db6a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\36-1b-f9-f6-10-b1\WpadDecision = "0"	2024-08-29_b3c5f714084f79d8676b9fb29f45db6a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-08-29_b3c5f714084f79d8676b9fb29f45db6a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-08-29_b3c5f714084f79d8676b9fb29f45db6a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-08-29_b3c5f714084f79d8676b9fb29f45db6a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0D7445F0-0C9B-4476-BE1B-727DD6AEF0C0}\WpadDecisionTime = a05674b80afada01	2024-08-29_b3c5f714084f79d8676b9fb29f45db6a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0D7445F0-0C9B-4476-BE1B-727DD6AEF0C0}\WpadNetworkName = "Network 3"	2024-08-29_b3c5f714084f79d8676b9fb29f45db6a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-08-29_b3c5f714084f79d8676b9fb29f45db6a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-08-29_b3c5f714084f79d8676b9fb29f45db6a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\36-1b-f9-f6-10-b1	2024-08-29_b3c5f714084f79d8676b9fb29f45db6a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0D7445F0-0C9B-4476-BE1B-727DD6AEF0C0}\36-1b-f9-f6-10-b1	2024-08-29_b3c5f714084f79d8676b9fb29f45db6a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\36-1b-f9-f6-10-b1\WpadDecisionTime = a05674b80afada01	2024-08-29_b3c5f714084f79d8676b9fb29f45db6a_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-08-29_b3c5f714084f79d8676b9fb29f45db6a_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-29_b3c5f714084f79d8676b9fb29f45db6a_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1816
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2812

C:\Users\Admin\AppData\Local\Temp\2024-08-29_b3c5f714084f79d8676b9fb29f45db6a_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-08-29_b3c5f714084f79d8676b9fb29f45db6a_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2712

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
924f4b9cd7172359495f38f678f4a2a9

SHA1
d1c18d2c67c08c2ace72d62454b1df97e064d813

SHA256
e99bc8bf46e522afff858ec0ade4310b14bf8874a984953510e1455976ec0d3a

SHA512
dfcf914772645210e03347f3b04aaffc09c9af345420e6d1038572b4ee062c17a8b054daaf416e2b92dfa5c0b9a599ced967d291a2a8b243cdd13c2e7b2dc681

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