wannacry | cdf6e2a4f4d7739247bcf7cb531c7a1e279e2df1611cf6cbd07fddc2b59cffb6

General

Target

2024092238ea24dbf49506bdc052ead9cee9234ewannacry.exe
Size

3.6MB
MD5

38ea24dbf49506bdc052ead9cee9234e
SHA1

7fbfea41f3ae296125e54938d25a6da60acd1d87
SHA256

cdf6e2a4f4d7739247bcf7cb531c7a1e279e2df1611cf6cbd07fddc2b59cffb6
SHA512

06a95c97ed0727854328cb4da49beb64d839a40d261422deb3ede6f9cbc3cc25dde0b8f4d2023080d8300fc705d8ebef78b256cc02eb3efc1b5689f7f86da976
SSDEEP

98304:yDqPoBi1aRxcSUDk36SAEdhvxWa9P593R8yAVp2r:yDqPJ1Cxcxk3ZAEUadzR8yc4r

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3320) 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
2796	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	2024092238ea24dbf49506bdc052ead9cee9234ewannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024092238ea24dbf49506bdc052ead9cee9234ewannacry.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	2024092238ea24dbf49506bdc052ead9cee9234ewannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024092238ea24dbf49506bdc052ead9cee9234ewannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E1D5B544-C9E6-4D97-BD9E-26B0B31AE207}\WpadDecisionTime = 30683c2d3c0ddb01	2024092238ea24dbf49506bdc052ead9cee9234ewannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E1D5B544-C9E6-4D97-BD9E-26B0B31AE207}\WpadDecision = "0"	2024092238ea24dbf49506bdc052ead9cee9234ewannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E1D5B544-C9E6-4D97-BD9E-26B0B31AE207}\86-d7-de-79-ae-4c	2024092238ea24dbf49506bdc052ead9cee9234ewannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024092238ea24dbf49506bdc052ead9cee9234ewannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024092238ea24dbf49506bdc052ead9cee9234ewannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E1D5B544-C9E6-4D97-BD9E-26B0B31AE207}\WpadDecisionReason = "1"	2024092238ea24dbf49506bdc052ead9cee9234ewannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024092238ea24dbf49506bdc052ead9cee9234ewannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024092238ea24dbf49506bdc052ead9cee9234ewannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024092238ea24dbf49506bdc052ead9cee9234ewannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E1D5B544-C9E6-4D97-BD9E-26B0B31AE207}\WpadNetworkName = "Network 3"	2024092238ea24dbf49506bdc052ead9cee9234ewannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\86-d7-de-79-ae-4c\WpadDecisionTime = 30683c2d3c0ddb01	2024092238ea24dbf49506bdc052ead9cee9234ewannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024092238ea24dbf49506bdc052ead9cee9234ewannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024092238ea24dbf49506bdc052ead9cee9234ewannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024092238ea24dbf49506bdc052ead9cee9234ewannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024092238ea24dbf49506bdc052ead9cee9234ewannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024092238ea24dbf49506bdc052ead9cee9234ewannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00bb000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024092238ea24dbf49506bdc052ead9cee9234ewannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E1D5B544-C9E6-4D97-BD9E-26B0B31AE207}	2024092238ea24dbf49506bdc052ead9cee9234ewannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\86-d7-de-79-ae-4c	2024092238ea24dbf49506bdc052ead9cee9234ewannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024092238ea24dbf49506bdc052ead9cee9234ewannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024092238ea24dbf49506bdc052ead9cee9234ewannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024092238ea24dbf49506bdc052ead9cee9234ewannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\86-d7-de-79-ae-4c\WpadDecisionReason = "1"	2024092238ea24dbf49506bdc052ead9cee9234ewannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\86-d7-de-79-ae-4c\WpadDecision = "0"	2024092238ea24dbf49506bdc052ead9cee9234ewannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024092238ea24dbf49506bdc052ead9cee9234ewannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024092238ea24dbf49506bdc052ead9cee9234ewannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:3020
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2796

C:\Users\Admin\AppData\Local\Temp\2024092238ea24dbf49506bdc052ead9cee9234ewannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024092238ea24dbf49506bdc052ead9cee9234ewannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2700

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
d2d540dd2255353f2b0203b578be8dae

SHA1
8d7d9a011ea978930c4122831e8d627b9a1ca73a

SHA256
943fc1e507f0b6233ed4fd4405be8b9e792758a0c5baa8ddad1ba927f7d17bae

SHA512
06b4cad74a63af54ccda7da28aee4c9981c73324b3b0a94b3c1b4dc9a634851d2f9dc5f25821166f699924377ad333a18e0e639bc97209badd5af278148512c5

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