wannacry | 7142bb2046d9ee61c448712fd9e660bb4b7f5ad4e56bd39fdf5eab2be0a9328d

General

Target

2025-02-12_bd78d4c9b56203f9e85b3760e6db8aa2_wannacry.exe
Size

3.6MB
MD5

bd78d4c9b56203f9e85b3760e6db8aa2
SHA1

aa07b022935f5c2c7efc55725bd8daf64dda84df
SHA256

7142bb2046d9ee61c448712fd9e660bb4b7f5ad4e56bd39fdf5eab2be0a9328d
SHA512

c4faa90d3282fd583a245485dec1d04cef15357608df8d703b6aa64d506dabf7a2aec3829c3e38354a06d7f433a3d5859615e4d1cb736c67f2fbb04ba2bdd781
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhvd3R8yAVp2AZx8:yDqPe1Cxcxk3ZAEhR8yc4A78

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 (3045) 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
3008	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	2025-02-12_bd78d4c9b56203f9e85b3760e6db8aa2_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-02-12_bd78d4c9b56203f9e85b3760e6db8aa2_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	2025-02-12_bd78d4c9b56203f9e85b3760e6db8aa2_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-12_bd78d4c9b56203f9e85b3760e6db8aa2_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-12_bd78d4c9b56203f9e85b3760e6db8aa2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-02-12_bd78d4c9b56203f9e85b3760e6db8aa2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-02-12_bd78d4c9b56203f9e85b3760e6db8aa2_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-02-12_bd78d4c9b56203f9e85b3760e6db8aa2_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-02-12_bd78d4c9b56203f9e85b3760e6db8aa2_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-02-12_bd78d4c9b56203f9e85b3760e6db8aa2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3B196710-F9AD-4EDD-BD73-41C1F5A18975}	2025-02-12_bd78d4c9b56203f9e85b3760e6db8aa2_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3B196710-F9AD-4EDD-BD73-41C1F5A18975}\WpadNetworkName = "Network 3"	2025-02-12_bd78d4c9b56203f9e85b3760e6db8aa2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a2-66-86-ef-db-34	2025-02-12_bd78d4c9b56203f9e85b3760e6db8aa2_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-12_bd78d4c9b56203f9e85b3760e6db8aa2_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-12_bd78d4c9b56203f9e85b3760e6db8aa2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-02-12_bd78d4c9b56203f9e85b3760e6db8aa2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-02-12_bd78d4c9b56203f9e85b3760e6db8aa2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3B196710-F9AD-4EDD-BD73-41C1F5A18975}\a2-66-86-ef-db-34	2025-02-12_bd78d4c9b56203f9e85b3760e6db8aa2_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a2-66-86-ef-db-34\WpadDecisionTime = 40bc3a4b917ddb01	2025-02-12_bd78d4c9b56203f9e85b3760e6db8aa2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-12_bd78d4c9b56203f9e85b3760e6db8aa2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-02-12_bd78d4c9b56203f9e85b3760e6db8aa2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-02-12_bd78d4c9b56203f9e85b3760e6db8aa2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3B196710-F9AD-4EDD-BD73-41C1F5A18975}\WpadDecisionReason = "1"	2025-02-12_bd78d4c9b56203f9e85b3760e6db8aa2_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3B196710-F9AD-4EDD-BD73-41C1F5A18975}\WpadDecisionTime = 40bc3a4b917ddb01	2025-02-12_bd78d4c9b56203f9e85b3760e6db8aa2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a2-66-86-ef-db-34\WpadDecision = "0"	2025-02-12_bd78d4c9b56203f9e85b3760e6db8aa2_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0179000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-12_bd78d4c9b56203f9e85b3760e6db8aa2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3B196710-F9AD-4EDD-BD73-41C1F5A18975}\WpadDecision = "0"	2025-02-12_bd78d4c9b56203f9e85b3760e6db8aa2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a2-66-86-ef-db-34\WpadDecisionReason = "1"	2025-02-12_bd78d4c9b56203f9e85b3760e6db8aa2_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-02-12_bd78d4c9b56203f9e85b3760e6db8aa2_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-12_bd78d4c9b56203f9e85b3760e6db8aa2_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2036
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:3008

C:\Users\Admin\AppData\Local\Temp\2025-02-12_bd78d4c9b56203f9e85b3760e6db8aa2_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-02-12_bd78d4c9b56203f9e85b3760e6db8aa2_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1936

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

Loading Replay Monitor...

Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
59389f3a0e5ae5ed91c0bcf2e7e228dc

SHA1
d76904e8ce481b5a5ece5da850897b2d7088ebaa

SHA256
26fb67c887db11f22dc2de7c2d24b4433bdcc5c0ac3f2596ad53cd90cc70327e

SHA512
7339c9a84afc66a84307ca419e9cd3ad1427f7bd395a0f723db09540df12e4baafd4fe76ccd3a7eb584befd3e263f8bf68371f3ac06413c31ade429c0a6313d8

Download Submit

Analysis

Sharing