wannacry | 44ddc6f4c16ffce5a4a52d4b87a88cabdbea621210a536cb28bc51cc8ba8daa7

General

Target

2025-02-22_38dbbe100df72260f36d1dca0ce9cce2_wannacry.exe
Size

5.0MB
MD5

38dbbe100df72260f36d1dca0ce9cce2
SHA1

d83f2148dbbd57887ecf2035202078c9bb1c9a62
SHA256

44ddc6f4c16ffce5a4a52d4b87a88cabdbea621210a536cb28bc51cc8ba8daa7
SHA512

7016d209b719003219e0aa2b3ceff79c21b904ef0347a82b6f520610edccb8536846567eaa6277e66a347becc4e411e6987e634aa0730f25d7aae081ac56aeba
SSDEEP

49152:2npEKUacBVQej/1INRx+TSqTdX1HkQo6SAARdhnvDf:ypyfBhz1aRxcSUDk36SAEdhvb

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 (3291) 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
2592	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	2025-02-22_38dbbe100df72260f36d1dca0ce9cce2_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	2025-02-22_38dbbe100df72260f36d1dca0ce9cce2_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	2025-02-22_38dbbe100df72260f36d1dca0ce9cce2_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	2025-02-22_38dbbe100df72260f36d1dca0ce9cce2_wannacry.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-02-22_38dbbe100df72260f36d1dca0ce9cce2_wannacry.exe
File created	C:\Windows\__tmp_rar_sfx_access_check_240678078	tasksche.exe
File created	C:\Windows\eee.exe	tasksche.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	tasksche.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-22_38dbbe100df72260f36d1dca0ce9cce2_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-22_38dbbe100df72260f36d1dca0ce9cce2_wannacry.exe

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-22_38dbbe100df72260f36d1dca0ce9cce2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2025-02-22_38dbbe100df72260f36d1dca0ce9cce2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	2025-02-22_38dbbe100df72260f36d1dca0ce9cce2_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-02-22_38dbbe100df72260f36d1dca0ce9cce2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P	2025-02-22_38dbbe100df72260f36d1dca0ce9cce2_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-02-22_38dbbe100df72260f36d1dca0ce9cce2_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-02-22_38dbbe100df72260f36d1dca0ce9cce2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-02-22_38dbbe100df72260f36d1dca0ce9cce2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2025-02-22_38dbbe100df72260f36d1dca0ce9cce2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2025-02-22_38dbbe100df72260f36d1dca0ce9cce2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2025-02-22_38dbbe100df72260f36d1dca0ce9cce2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft	2025-02-22_38dbbe100df72260f36d1dca0ce9cce2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows	2025-02-22_38dbbe100df72260f36d1dca0ce9cce2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P\History	2025-02-22_38dbbe100df72260f36d1dca0ce9cce2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion	2025-02-22_38dbbe100df72260f36d1dca0ce9cce2_wannacry.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4556 wrote to memory of 2592	4556	2025-02-22_38dbbe100df72260f36d1dca0ce9cce2_wannacry.exe	90
PID 4556 wrote to memory of 2592	4556	2025-02-22_38dbbe100df72260f36d1dca0ce9cce2_wannacry.exe	90
PID 4556 wrote to memory of 2592	4556	2025-02-22_38dbbe100df72260f36d1dca0ce9cce2_wannacry.exe	90

C:\Users\Admin\AppData\Local\Temp\2025-02-22_38dbbe100df72260f36d1dca0ce9cce2_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-22_38dbbe100df72260f36d1dca0ce9cce2_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4556
- 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:2592

C:\Users\Admin\AppData\Local\Temp\2025-02-22_38dbbe100df72260f36d1dca0ce9cce2_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-02-22_38dbbe100df72260f36d1dca0ce9cce2_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1128

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
beb8a27fc024962e045c32aa58d07d0e

SHA1
796d3613673f323135865c42272abef347add163

SHA256
ea2ad4d3bb98673b88e18eea1bf06c371c206b64246a9193b2a64ba4fe4f4900

SHA512
e84c03f6f4399b28e0d258b743831f36c621325d9b199cbbdd6982ed51280facfc5a953a2393788bbc54efb653f95c9f75ea29c93c147c9227aff3395f788179

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Analysis

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