wannacry | e72c01faebb9f1056eb85a6fc1238cbb65a868eba635fd90644d7750cf07cf95

General

Target

2024-10-16_e8f454376fd61126319f8a17155bee0d_wannacry.exe
Size

3.6MB
MD5

e8f454376fd61126319f8a17155bee0d
SHA1

c73fd0bbfdb80330fc37a84c33988ebfd3ad6b06
SHA256

e72c01faebb9f1056eb85a6fc1238cbb65a868eba635fd90644d7750cf07cf95
SHA512

daf7e99432f8f080cb7f9f126d28c75f26bcb0419c62b772bfa344864653142cefbbea9ca4fa8a95dc0c9af6b1927ce9eeaf42df94f53ae9fc38147279f2b376
SSDEEP

49152:2nAQqMSPbcBVQej/1INYfFqK5HsJoFGI:yDqPoBhz1aYqK5F

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3202) 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
2908	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	2024-10-16_e8f454376fd61126319f8a17155bee0d_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-16_e8f454376fd61126319f8a17155bee0d_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	2024-10-16_e8f454376fd61126319f8a17155bee0d_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-16_e8f454376fd61126319f8a17155bee0d_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-16_e8f454376fd61126319f8a17155bee0d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-16_e8f454376fd61126319f8a17155bee0d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-16_e8f454376fd61126319f8a17155bee0d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-16_e8f454376fd61126319f8a17155bee0d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E762BC63-5BFA-4244-BFED-7BB45B67224D}\WpadDecisionReason = "1"	2024-10-16_e8f454376fd61126319f8a17155bee0d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-16_e8f454376fd61126319f8a17155bee0d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-16_e8f454376fd61126319f8a17155bee0d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-16_e8f454376fd61126319f8a17155bee0d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E762BC63-5BFA-4244-BFED-7BB45B67224D}\WpadNetworkName = "Network 3"	2024-10-16_e8f454376fd61126319f8a17155bee0d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E762BC63-5BFA-4244-BFED-7BB45B67224D}\06-f9-cf-cd-77-c8	2024-10-16_e8f454376fd61126319f8a17155bee0d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\06-f9-cf-cd-77-c8\WpadDecisionReason = "1"	2024-10-16_e8f454376fd61126319f8a17155bee0d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-16_e8f454376fd61126319f8a17155bee0d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-16_e8f454376fd61126319f8a17155bee0d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E762BC63-5BFA-4244-BFED-7BB45B67224D}\WpadDecision = "0"	2024-10-16_e8f454376fd61126319f8a17155bee0d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-16_e8f454376fd61126319f8a17155bee0d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f011a000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-16_e8f454376fd61126319f8a17155bee0d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E762BC63-5BFA-4244-BFED-7BB45B67224D}	2024-10-16_e8f454376fd61126319f8a17155bee0d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E762BC63-5BFA-4244-BFED-7BB45B67224D}\WpadDecisionTime = c07c2eafa21fdb01	2024-10-16_e8f454376fd61126319f8a17155bee0d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\06-f9-cf-cd-77-c8	2024-10-16_e8f454376fd61126319f8a17155bee0d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-16_e8f454376fd61126319f8a17155bee0d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-16_e8f454376fd61126319f8a17155bee0d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-16_e8f454376fd61126319f8a17155bee0d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\06-f9-cf-cd-77-c8\WpadDecision = "0"	2024-10-16_e8f454376fd61126319f8a17155bee0d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\06-f9-cf-cd-77-c8\WpadDecisionTime = c07c2eafa21fdb01	2024-10-16_e8f454376fd61126319f8a17155bee0d_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-16_e8f454376fd61126319f8a17155bee0d_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-16_e8f454376fd61126319f8a17155bee0d_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2296
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2908

C:\Users\Admin\AppData\Local\Temp\2024-10-16_e8f454376fd61126319f8a17155bee0d_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-16_e8f454376fd61126319f8a17155bee0d_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2840

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
0483ad53cb779289e8f1f9ef7b4faccf

SHA1
9c8f7c45cc185f30e228f1767b75972f2688d0bf

SHA256
b032e94abd015417b106b071ad6d61e1954f390e07cc14fe08b98b3fb3f2ca34

SHA512
d5e7e06b8a40965434a434ca8da7470946505358906d389856109ef5cf1f5d06a2a66df0184c4c632556fdf1181d815acb52ba4dc2b539372527c10c59114538

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