wannacry | ba789986b19435c67431eb9a8c76ea4d22bc4b3148cbfc6dd1de4cded7780e19

General

Target

2025-01-17_dbd3820ba33e9969102deef5a5b7172b_wannacry.exe
Size

2.2MB
MD5

dbd3820ba33e9969102deef5a5b7172b
SHA1

33bf7f791fc31e81e3ec153e380fadbdc69e66f2
SHA256

ba789986b19435c67431eb9a8c76ea4d22bc4b3148cbfc6dd1de4cded7780e19
SHA512

60b32370e5c7a6154100307c30c1143b87f9d4ed3710d91251ea639ff4f8dbce8ccb63f282868a7a16aca1d074f6aaf5bf611ade20dd22c1047ac8b65b352765
SSDEEP

24576:QbLguriIfEcQdIVUacMNgef0QeQjG/D8kIqRYoAdNLKz6626br2q+fwK4IvZLLJY:QnpEKUacBVQej/1INRAuW

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 (3338) 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
2828	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\Content.IE5	2025-01-17_dbd3820ba33e9969102deef5a5b7172b_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	2025-01-17_dbd3820ba33e9969102deef5a5b7172b_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	2025-01-17_dbd3820ba33e9969102deef5a5b7172b_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	2025-01-17_dbd3820ba33e9969102deef5a5b7172b_wannacry.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\__tmp_rar_sfx_access_check_240621906	tasksche.exe
File created	C:\Windows\eee.exe	tasksche.exe
File created	C:\WINDOWS\tasksche.exe	2025-01-17_dbd3820ba33e9969102deef5a5b7172b_wannacry.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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	2025-01-17_dbd3820ba33e9969102deef5a5b7172b_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-17_dbd3820ba33e9969102deef5a5b7172b_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tasksche.exe

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-01-17_dbd3820ba33e9969102deef5a5b7172b_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P\History	2025-01-17_dbd3820ba33e9969102deef5a5b7172b_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion	2025-01-17_dbd3820ba33e9969102deef5a5b7172b_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P	2025-01-17_dbd3820ba33e9969102deef5a5b7172b_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-01-17_dbd3820ba33e9969102deef5a5b7172b_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	2025-01-17_dbd3820ba33e9969102deef5a5b7172b_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows	2025-01-17_dbd3820ba33e9969102deef5a5b7172b_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2025-01-17_dbd3820ba33e9969102deef5a5b7172b_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2025-01-17_dbd3820ba33e9969102deef5a5b7172b_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-01-17_dbd3820ba33e9969102deef5a5b7172b_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2025-01-17_dbd3820ba33e9969102deef5a5b7172b_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2025-01-17_dbd3820ba33e9969102deef5a5b7172b_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft	2025-01-17_dbd3820ba33e9969102deef5a5b7172b_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-17_dbd3820ba33e9969102deef5a5b7172b_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-01-17_dbd3820ba33e9969102deef5a5b7172b_wannacry.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2192 wrote to memory of 2828	2192	2025-01-17_dbd3820ba33e9969102deef5a5b7172b_wannacry.exe	84
PID 2192 wrote to memory of 2828	2192	2025-01-17_dbd3820ba33e9969102deef5a5b7172b_wannacry.exe	84
PID 2192 wrote to memory of 2828	2192	2025-01-17_dbd3820ba33e9969102deef5a5b7172b_wannacry.exe	84

C:\Users\Admin\AppData\Local\Temp\2025-01-17_dbd3820ba33e9969102deef5a5b7172b_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-17_dbd3820ba33e9969102deef5a5b7172b_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2192
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  PID:2828

C:\Users\Admin\AppData\Local\Temp\2025-01-17_dbd3820ba33e9969102deef5a5b7172b_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-01-17_dbd3820ba33e9969102deef5a5b7172b_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:3724

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
2.0MB

MD5
fd5873e7ffa92f04f1c2441dd4b44bc0

SHA1
74098b441ce589dea0de8a5e0d8818e88ed6c481

SHA256
97c697261a4773514a2cd1040e142c7f84d915662e5de60533e0c6f8427ac638

SHA512
9a62e5ded2111c0a6190d24ffd234f26bb669621d1f4ff8e66c78f1032bbdd46ad853704974b15d6a7a8b357ee8e66980f726ff030676e1a92470a31288230e5

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Analysis

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