wannacry | 20dc7779129b4cb4b049efdb8251a4be3103fdd3be25c8579ca31c070882a240

General

Target

2024-10-11_e3606442344fa4be2beb528794400368_wannacry.exe
Size

3.6MB
MD5

e3606442344fa4be2beb528794400368
SHA1

dbb433e5b857312217cda7f2f90d707f80f0ec99
SHA256

20dc7779129b4cb4b049efdb8251a4be3103fdd3be25c8579ca31c070882a240
SHA512

825cead3db53fe45baea9cae4bcb76f4aca860b656997b9fa59e3e8ff76bc257fb8f5f5df96aef242c9a2db30f790c0de5defd2b0252b483689df89433ecce64
SSDEEP

49152:XnAQqMSPbcBVQej/1INUpjYV8W36SAARdhnvxJM0H9/lAHI:XDqPoBhz1aUpcN36SAEdhvxWa9/2HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3308) 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
1520	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	2024-10-11_e3606442344fa4be2beb528794400368_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-11_e3606442344fa4be2beb528794400368_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	2024-10-11_e3606442344fa4be2beb528794400368_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-11_e3606442344fa4be2beb528794400368_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-11_e3606442344fa4be2beb528794400368_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00d3000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-11_e3606442344fa4be2beb528794400368_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CCA608DC-E7BC-4A77-AD74-A73391D9EEBD}\WpadDecisionReason = "1"	2024-10-11_e3606442344fa4be2beb528794400368_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CCA608DC-E7BC-4A77-AD74-A73391D9EEBD}\WpadDecisionTime = 508097c57a1bdb01	2024-10-11_e3606442344fa4be2beb528794400368_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	2024-10-11_e3606442344fa4be2beb528794400368_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-11_e3606442344fa4be2beb528794400368_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-11_e3606442344fa4be2beb528794400368_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-11_e3606442344fa4be2beb528794400368_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-11_e3606442344fa4be2beb528794400368_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-11_e3606442344fa4be2beb528794400368_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-11_e3606442344fa4be2beb528794400368_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CCA608DC-E7BC-4A77-AD74-A73391D9EEBD}\WpadNetworkName = "Network 3"	2024-10-11_e3606442344fa4be2beb528794400368_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-11_e3606442344fa4be2beb528794400368_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CCA608DC-E7BC-4A77-AD74-A73391D9EEBD}	2024-10-11_e3606442344fa4be2beb528794400368_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-11_e3606442344fa4be2beb528794400368_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-11_e3606442344fa4be2beb528794400368_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-11_e3606442344fa4be2beb528794400368_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-11_e3606442344fa4be2beb528794400368_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CCA608DC-E7BC-4A77-AD74-A73391D9EEBD}\WpadDecision = "0"	2024-10-11_e3606442344fa4be2beb528794400368_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\be-cf-02-41-fc-ac	2024-10-11_e3606442344fa4be2beb528794400368_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\be-cf-02-41-fc-ac\WpadDecisionReason = "1"	2024-10-11_e3606442344fa4be2beb528794400368_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\be-cf-02-41-fc-ac\WpadDecisionTime = 508097c57a1bdb01	2024-10-11_e3606442344fa4be2beb528794400368_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-11_e3606442344fa4be2beb528794400368_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\be-cf-02-41-fc-ac\WpadDecision = "0"	2024-10-11_e3606442344fa4be2beb528794400368_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-11_e3606442344fa4be2beb528794400368_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-11_e3606442344fa4be2beb528794400368_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2516
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1520

C:\Users\Admin\AppData\Local\Temp\2024-10-11_e3606442344fa4be2beb528794400368_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-11_e3606442344fa4be2beb528794400368_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

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
5118897fc10a5d48d49946d5f5669182

SHA1
78c66d8a5466ed858d359d87ade3be914a8a6cca

SHA256
227b95656784bef7820491feaa356f557cb8323d434b0fcbdb7651b6b37e4934

SHA512
b05f89e7e3601c418a1d01e945e8b0e08ad62bdeaedfcfc80b0a59f167b97fc41f70add0e7c6786226df067f3d406591f4725899a65df317c0c0c6d56f05dba4

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