wannacry | 8445baaa713dcb1b01b23055553f383fc04a6dddec7309b9f71bfa0cdecd5b50

General

Target

2025-01-02_bd541cf83e136cb6ac58b00914f46f7c_wannacry.exe
Size

5.0MB
MD5

bd541cf83e136cb6ac58b00914f46f7c
SHA1

0ccc3cbcd50042bfa30be6b1bc9723f9010a189b
SHA256

8445baaa713dcb1b01b23055553f383fc04a6dddec7309b9f71bfa0cdecd5b50
SHA512

35e31821f452f41a573cae99466a21b5f5e6c48d822c7cb14c74f04ed1328bac20eab865e76b64d55959e088c4a68ebc7334bcdb9afc469066351b3b3a3ceb2c
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQ:yDqPoBhz1aRxcSUDk

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 (3209) 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 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2025-01-02_bd541cf83e136cb6ac58b00914f46f7c_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-01-02_bd541cf83e136cb6ac58b00914f46f7c_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	2025-01-02_bd541cf83e136cb6ac58b00914f46f7c_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-02_bd541cf83e136cb6ac58b00914f46f7c_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-01-02_bd541cf83e136cb6ac58b00914f46f7c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8AAAECE4-3713-4134-BA06-B16C938DA184}	2025-01-02_bd541cf83e136cb6ac58b00914f46f7c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8AAAECE4-3713-4134-BA06-B16C938DA184}\WpadDecisionReason = "1"	2025-01-02_bd541cf83e136cb6ac58b00914f46f7c_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8AAAECE4-3713-4134-BA06-B16C938DA184}\WpadDecisionTime = 30d31452105ddb01	2025-01-02_bd541cf83e136cb6ac58b00914f46f7c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-02_bd541cf83e136cb6ac58b00914f46f7c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-01-02_bd541cf83e136cb6ac58b00914f46f7c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-01-02_bd541cf83e136cb6ac58b00914f46f7c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-01-02_bd541cf83e136cb6ac58b00914f46f7c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-c7-8c-a5-5f-45\WpadDecision = "0"	2025-01-02_bd541cf83e136cb6ac58b00914f46f7c_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-02_bd541cf83e136cb6ac58b00914f46f7c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8AAAECE4-3713-4134-BA06-B16C938DA184}\WpadDecision = "0"	2025-01-02_bd541cf83e136cb6ac58b00914f46f7c_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8AAAECE4-3713-4134-BA06-B16C938DA184}\WpadNetworkName = "Network 3"	2025-01-02_bd541cf83e136cb6ac58b00914f46f7c_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-01-02_bd541cf83e136cb6ac58b00914f46f7c_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-01-02_bd541cf83e136cb6ac58b00914f46f7c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-c7-8c-a5-5f-45	2025-01-02_bd541cf83e136cb6ac58b00914f46f7c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-c7-8c-a5-5f-45\WpadDecisionReason = "1"	2025-01-02_bd541cf83e136cb6ac58b00914f46f7c_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-01-02_bd541cf83e136cb6ac58b00914f46f7c_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0117000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-02_bd541cf83e136cb6ac58b00914f46f7c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8AAAECE4-3713-4134-BA06-B16C938DA184}\32-c7-8c-a5-5f-45	2025-01-02_bd541cf83e136cb6ac58b00914f46f7c_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-c7-8c-a5-5f-45\WpadDecisionTime = 30d31452105ddb01	2025-01-02_bd541cf83e136cb6ac58b00914f46f7c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-02_bd541cf83e136cb6ac58b00914f46f7c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-01-02_bd541cf83e136cb6ac58b00914f46f7c_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-02_bd541cf83e136cb6ac58b00914f46f7c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-01-02_bd541cf83e136cb6ac58b00914f46f7c_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-01-02_bd541cf83e136cb6ac58b00914f46f7c_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-02_bd541cf83e136cb6ac58b00914f46f7c_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1496
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2828

C:\Users\Admin\AppData\Local\Temp\2025-01-02_bd541cf83e136cb6ac58b00914f46f7c_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-01-02_bd541cf83e136cb6ac58b00914f46f7c_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2736

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
88c8b4fc8eb92870cda83ae4745665b8

SHA1
756f37ed67bed6ae9a5bc24c73e48f321c08fd47

SHA256
de223b5a041b404399f141c4ed7f3e092173c4a23fbcbd6957841d8936508225

SHA512
4a4add1d477f376f10779bb9c73e209f78f9f1ffa54d5e7d53b3460cbd617cc000681fe12c62f4d891694377427e59edda119ed60c5e637c3378c705acb482b9

Download Submit

Analysis

Sharing