wannacry | 3ee8d0768850b3e76d13180f409a119436492686cf3676e60b414d9dee18f5f3

General

Target

2024-07-27_613a54d2565ae195d61df15e22ffe7b8_wannacry.exe
Size

5.0MB
MD5

613a54d2565ae195d61df15e22ffe7b8
SHA1

8c36a664b56afc94e7c370dd003a0a6d0ce81c7f
SHA256

3ee8d0768850b3e76d13180f409a119436492686cf3676e60b414d9dee18f5f3
SHA512

386036a8a4ee6a22531a6ab3fa2e0e20d78fd08ad2c841d873c5ca694177e537612df181a2c5a42f7f52ae955f0a3873f1b45864d1d154ceea924acdedd113e4
SSDEEP

24576:2bLgdVQhfdmMSirYbcMNgef0QeQjG/D8kIqRYoAdNLKz6626M+:2nEQqMSPbcBVQej/1INRx+

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3072) 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
384	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\INetCookies	2024-07-27_613a54d2565ae195d61df15e22ffe7b8_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	2024-07-27_613a54d2565ae195d61df15e22ffe7b8_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	2024-07-27_613a54d2565ae195d61df15e22ffe7b8_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	2024-07-27_613a54d2565ae195d61df15e22ffe7b8_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-07-27_613a54d2565ae195d61df15e22ffe7b8_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	2024-07-27_613a54d2565ae195d61df15e22ffe7b8_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-07-27_613a54d2565ae195d61df15e22ffe7b8_wannacry.exe

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-07-27_613a54d2565ae195d61df15e22ffe7b8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-07-27_613a54d2565ae195d61df15e22ffe7b8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft	2024-07-27_613a54d2565ae195d61df15e22ffe7b8_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-07-27_613a54d2565ae195d61df15e22ffe7b8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion	2024-07-27_613a54d2565ae195d61df15e22ffe7b8_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-07-27_613a54d2565ae195d61df15e22ffe7b8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-07-27_613a54d2565ae195d61df15e22ffe7b8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-07-27_613a54d2565ae195d61df15e22ffe7b8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P	2024-07-27_613a54d2565ae195d61df15e22ffe7b8_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-07-27_613a54d2565ae195d61df15e22ffe7b8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-07-27_613a54d2565ae195d61df15e22ffe7b8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P\History	2024-07-27_613a54d2565ae195d61df15e22ffe7b8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	2024-07-27_613a54d2565ae195d61df15e22ffe7b8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows	2024-07-27_613a54d2565ae195d61df15e22ffe7b8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-07-27_613a54d2565ae195d61df15e22ffe7b8_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-07-27_613a54d2565ae195d61df15e22ffe7b8_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-27_613a54d2565ae195d61df15e22ffe7b8_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:3900
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:384

C:\Users\Admin\AppData\Local\Temp\2024-07-27_613a54d2565ae195d61df15e22ffe7b8_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-07-27_613a54d2565ae195d61df15e22ffe7b8_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:3448

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
193223a04770b0c36bac7b323cd97bab

SHA1
58bdf588e512f16c103f470e5a4771e2bf58ffa1

SHA256
a8121aa43eaff86046efcf5677141af74da209d7dadf738eef4d79f74d279024

SHA512
7766bc8a4cdb8f4f8ce0af9c7b0f88e1ab5952fc6cae6ac384770c5ec8daaf0eb45d2d4409c630b7714b8db2c8dc254e1d1668a7115a5d39fad1795862d73282

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