wannacry | 3b4fa57c1630d4ae5f9589e819e4a459ea373da55125ebcaa081e813e56edaf2

General

Target

2025-01-23_5bfdb53166290f0e8c2eb29a4c27104e_wannacry.exe
Size

5.0MB
MD5

5bfdb53166290f0e8c2eb29a4c27104e
SHA1

0a601bdad79b2bc40a4716a1c5d2608433cc9b0e
SHA256

3b4fa57c1630d4ae5f9589e819e4a459ea373da55125ebcaa081e813e56edaf2
SHA512

426b791e18d26e4f155e2cdc0274b2b37401304b85bfda47b52641d3381f2137fb08366db353b56bdc0907cbc0bf42f62dce32fa1a3e9c1e591f23327a72130c
SSDEEP

98304:XDqPoBhz1aRxcSUDk36SA3dhvxWa9P593R8yAVp2H:XDqPe1Cxcxk3ZA3UadzR8yc4H

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
2756	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	2025-01-23_5bfdb53166290f0e8c2eb29a4c27104e_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-01-23_5bfdb53166290f0e8c2eb29a4c27104e_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	2025-01-23_5bfdb53166290f0e8c2eb29a4c27104e_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-23_5bfdb53166290f0e8c2eb29a4c27104e_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-23_5bfdb53166290f0e8c2eb29a4c27104e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-01-23_5bfdb53166290f0e8c2eb29a4c27104e_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-01-23_5bfdb53166290f0e8c2eb29a4c27104e_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-01-23_5bfdb53166290f0e8c2eb29a4c27104e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-01-23_5bfdb53166290f0e8c2eb29a4c27104e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-23_5bfdb53166290f0e8c2eb29a4c27104e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{08DC7B49-503D-4F0F-8CC3-A84F53791F16}\WpadDecisionReason = "1"	2025-01-23_5bfdb53166290f0e8c2eb29a4c27104e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{08DC7B49-503D-4F0F-8CC3-A84F53791F16}\WpadDecisionTime = 80701e9ae86ddb01	2025-01-23_5bfdb53166290f0e8c2eb29a4c27104e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\be-5d-25-3e-fb-c2\WpadDecisionReason = "1"	2025-01-23_5bfdb53166290f0e8c2eb29a4c27104e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\be-5d-25-3e-fb-c2\WpadDecisionTime = 80701e9ae86ddb01	2025-01-23_5bfdb53166290f0e8c2eb29a4c27104e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-23_5bfdb53166290f0e8c2eb29a4c27104e_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-01-23_5bfdb53166290f0e8c2eb29a4c27104e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{08DC7B49-503D-4F0F-8CC3-A84F53791F16}\WpadDecision = "0"	2025-01-23_5bfdb53166290f0e8c2eb29a4c27104e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\be-5d-25-3e-fb-c2	2025-01-23_5bfdb53166290f0e8c2eb29a4c27104e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{08DC7B49-503D-4F0F-8CC3-A84F53791F16}\be-5d-25-3e-fb-c2	2025-01-23_5bfdb53166290f0e8c2eb29a4c27104e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-01-23_5bfdb53166290f0e8c2eb29a4c27104e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-23_5bfdb53166290f0e8c2eb29a4c27104e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-01-23_5bfdb53166290f0e8c2eb29a4c27104e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-01-23_5bfdb53166290f0e8c2eb29a4c27104e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-01-23_5bfdb53166290f0e8c2eb29a4c27104e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0197000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-23_5bfdb53166290f0e8c2eb29a4c27104e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{08DC7B49-503D-4F0F-8CC3-A84F53791F16}	2025-01-23_5bfdb53166290f0e8c2eb29a4c27104e_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{08DC7B49-503D-4F0F-8CC3-A84F53791F16}\WpadNetworkName = "Network 3"	2025-01-23_5bfdb53166290f0e8c2eb29a4c27104e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\be-5d-25-3e-fb-c2\WpadDecision = "0"	2025-01-23_5bfdb53166290f0e8c2eb29a4c27104e_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-01-23_5bfdb53166290f0e8c2eb29a4c27104e_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-23_5bfdb53166290f0e8c2eb29a4c27104e_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1920
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2756

C:\Users\Admin\AppData\Local\Temp\2025-01-23_5bfdb53166290f0e8c2eb29a4c27104e_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-01-23_5bfdb53166290f0e8c2eb29a4c27104e_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2252

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
602315bda2d1d08635e2a313b6913af9

SHA1
99fbfe8a71afa8314e32fc2a12b1434a7bb82c45

SHA256
b74e0703723338b6f9cc367396ec011fe34d1d11dd68d3af39c8b6ab0aff4c07

SHA512
632ebef4dfee6801884bc1bd7b2a0c8aafbb780803553cadb36efe1ac3811defd05c11bc281277ca80503a765a2d1d6d22589a0447aeb5188c8ca9a1c4609036

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Analysis

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