wannacry | a49f4f3d4b26c87ef5388690be09efda06bbb2bb858c47d1d1cb7d85f3a02041

General

Target

2024-11-29_de821a5e11bf85d5b430367c2b75ad6d_wannacry.exe
Size

5.0MB
MD5

de821a5e11bf85d5b430367c2b75ad6d
SHA1

d3624de028eabda735e1c118971661167a5468ef
SHA256

a49f4f3d4b26c87ef5388690be09efda06bbb2bb858c47d1d1cb7d85f3a02041
SHA512

149a2a59512f752c0061e24e6e57f2fd792a7e93fb5ab50980ae8fbbf846e5e4aa4451ce2660b4ee8dca50bbdae310b23281430742846ad2d4657787475e2ddb
SSDEEP

98304:ynqPoBhz1aRYSUDk36SA/Wa9k593R8Z2:ynqPe1CYxk3ZA+aazR8o

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 (3335) 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
2608	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 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	2024-11-29_de821a5e11bf85d5b430367c2b75ad6d_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	2024-11-29_de821a5e11bf85d5b430367c2b75ad6d_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	2024-11-29_de821a5e11bf85d5b430367c2b75ad6d_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	2024-11-29_de821a5e11bf85d5b430367c2b75ad6d_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-11-29_de821a5e11bf85d5b430367c2b75ad6d_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	2024-11-29_de821a5e11bf85d5b430367c2b75ad6d_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-29_de821a5e11bf85d5b430367c2b75ad6d_wannacry.exe

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software	2024-11-29_de821a5e11bf85d5b430367c2b75ad6d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-11-29_de821a5e11bf85d5b430367c2b75ad6d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion	2024-11-29_de821a5e11bf85d5b430367c2b75ad6d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P	2024-11-29_de821a5e11bf85d5b430367c2b75ad6d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-11-29_de821a5e11bf85d5b430367c2b75ad6d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-11-29_de821a5e11bf85d5b430367c2b75ad6d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows	2024-11-29_de821a5e11bf85d5b430367c2b75ad6d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-11-29_de821a5e11bf85d5b430367c2b75ad6d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-11-29_de821a5e11bf85d5b430367c2b75ad6d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-11-29_de821a5e11bf85d5b430367c2b75ad6d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P\History	2024-11-29_de821a5e11bf85d5b430367c2b75ad6d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft	2024-11-29_de821a5e11bf85d5b430367c2b75ad6d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-29_de821a5e11bf85d5b430367c2b75ad6d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-11-29_de821a5e11bf85d5b430367c2b75ad6d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-11-29_de821a5e11bf85d5b430367c2b75ad6d_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-29_de821a5e11bf85d5b430367c2b75ad6d_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-29_de821a5e11bf85d5b430367c2b75ad6d_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:3828
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2608

C:\Users\Admin\AppData\Local\Temp\2024-11-29_de821a5e11bf85d5b430367c2b75ad6d_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-29_de821a5e11bf85d5b430367c2b75ad6d_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1820

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
2992d633fc827ef8ec9aa0de32ae110f

SHA1
7249b21b6ca0091942cb29b0110389dccfc740df

SHA256
9ab2c87184f7cb2ee84a1e5e566785464e1f2cc2ef59fed20d88693c9760f0cf

SHA512
84f4bfc8329a8327ae291ce87a70c2d2f18a73331ffe62f0f9886ce6e25782276a3fc09f20545943b030a72df048e5b40170e0615dbee2aa6183fa5b11d255ff

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Analysis

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