wannacry | 283dc1cef7172595597c76fccd8806de21227a1294b3ea0051745fa0d4dfb13b

General

Target

2024-12-09_7b3ba7cbe7075f8d29663e82e748a1e6_wannacry.exe
Size

5.0MB
MD5

7b3ba7cbe7075f8d29663e82e748a1e6
SHA1

5b2cf4d3719944fb171df964385c8d9204c6dacd
SHA256

283dc1cef7172595597c76fccd8806de21227a1294b3ea0051745fa0d4dfb13b
SHA512

1ed982c6033aca05f0843c2616d26fb869049512c28d4d6656c89b2ef284990c18f8f04396be10afe696ecb41cb85d009ee968c47a0c354e582ab4cf9368caf3
SSDEEP

24576:2bLgddQhfdNDNzV9H0DZFzo2zNk+3u/ir11wI3YwZjS:2nAQxWDZFzo2zNk+3uwO

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 (3294) 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
2308	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	2024-12-09_7b3ba7cbe7075f8d29663e82e748a1e6_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-12-09_7b3ba7cbe7075f8d29663e82e748a1e6_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	2024-12-09_7b3ba7cbe7075f8d29663e82e748a1e6_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-09_7b3ba7cbe7075f8d29663e82e748a1e6_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-12-09_7b3ba7cbe7075f8d29663e82e748a1e6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-12-09_7b3ba7cbe7075f8d29663e82e748a1e6_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-12-09_7b3ba7cbe7075f8d29663e82e748a1e6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CCA608DC-E7BC-4A77-AD74-A73391D9EEBD}\WpadDecisionReason = "1"	2024-12-09_7b3ba7cbe7075f8d29663e82e748a1e6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CCA608DC-E7BC-4A77-AD74-A73391D9EEBD}\WpadDecision = "0"	2024-12-09_7b3ba7cbe7075f8d29663e82e748a1e6_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CCA608DC-E7BC-4A77-AD74-A73391D9EEBD}\WpadNetworkName = "Network 3"	2024-12-09_7b3ba7cbe7075f8d29663e82e748a1e6_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-09_7b3ba7cbe7075f8d29663e82e748a1e6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-09_7b3ba7cbe7075f8d29663e82e748a1e6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-12-09_7b3ba7cbe7075f8d29663e82e748a1e6_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00d3000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-09_7b3ba7cbe7075f8d29663e82e748a1e6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CCA608DC-E7BC-4A77-AD74-A73391D9EEBD}	2024-12-09_7b3ba7cbe7075f8d29663e82e748a1e6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CCA608DC-E7BC-4A77-AD74-A73391D9EEBD}\be-cf-02-41-fc-ac	2024-12-09_7b3ba7cbe7075f8d29663e82e748a1e6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\be-cf-02-41-fc-ac\WpadDecisionReason = "1"	2024-12-09_7b3ba7cbe7075f8d29663e82e748a1e6_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\be-cf-02-41-fc-ac\WpadDecisionTime = 805d1243144adb01	2024-12-09_7b3ba7cbe7075f8d29663e82e748a1e6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-09_7b3ba7cbe7075f8d29663e82e748a1e6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-12-09_7b3ba7cbe7075f8d29663e82e748a1e6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\be-cf-02-41-fc-ac\WpadDecision = "0"	2024-12-09_7b3ba7cbe7075f8d29663e82e748a1e6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-12-09_7b3ba7cbe7075f8d29663e82e748a1e6_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CCA608DC-E7BC-4A77-AD74-A73391D9EEBD}\WpadDecisionTime = 805d1243144adb01	2024-12-09_7b3ba7cbe7075f8d29663e82e748a1e6_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-12-09_7b3ba7cbe7075f8d29663e82e748a1e6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-12-09_7b3ba7cbe7075f8d29663e82e748a1e6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\be-cf-02-41-fc-ac	2024-12-09_7b3ba7cbe7075f8d29663e82e748a1e6_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-09_7b3ba7cbe7075f8d29663e82e748a1e6_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-12-09_7b3ba7cbe7075f8d29663e82e748a1e6_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-09_7b3ba7cbe7075f8d29663e82e748a1e6_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-09_7b3ba7cbe7075f8d29663e82e748a1e6_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2420
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2308

C:\Users\Admin\AppData\Local\Temp\2024-12-09_7b3ba7cbe7075f8d29663e82e748a1e6_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-12-09_7b3ba7cbe7075f8d29663e82e748a1e6_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2492

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
6f6b5ae014e57ada8839c9b3711a29a5

SHA1
1dd2804c6a98b50e62992aae34d2829541e0f295

SHA256
3186923352dd84303dfd760f5270698b9e266ad835164ce5dcf547537289db88

SHA512
d01a592e78cf242eda603c4c8e6ca17286e342940b1417efbbb93e9d078ecef6fbef921d2af26ddd124ff81ea514fb71e01e83cd7d798ac0a4cddafed40eb943

Download Submit

Analysis

Sharing