wannacry | 3d8b35487886bc38e92b98a5ec5c0aed94986030c258fed857a4ac0ffd066b43

General

Target

2024-10-13_e75163529b90ea2522efebd973826735_wannacry.exe
Size

5.0MB
MD5

e75163529b90ea2522efebd973826735
SHA1

0175042bcb26e5e990514e6e478e63f20457b698
SHA256

3d8b35487886bc38e92b98a5ec5c0aed94986030c258fed857a4ac0ffd066b43
SHA512

f4365d19eba3b7c59d52b3405782d0182c964dfbcef5a073865a44a27ee868b5d747caf0b17ba49750aa121550bed19c34fe52df32a9d889447713361d96ef43
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 (3282) 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
2748	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	2024-10-13_e75163529b90ea2522efebd973826735_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-13_e75163529b90ea2522efebd973826735_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	2024-10-13_e75163529b90ea2522efebd973826735_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-13_e75163529b90ea2522efebd973826735_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-13_e75163529b90ea2522efebd973826735_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-13_e75163529b90ea2522efebd973826735_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{148341C8-0451-4003-8958-DD5733BC0A86}	2024-10-13_e75163529b90ea2522efebd973826735_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{148341C8-0451-4003-8958-DD5733BC0A86}\WpadNetworkName = "Network 3"	2024-10-13_e75163529b90ea2522efebd973826735_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{148341C8-0451-4003-8958-DD5733BC0A86}\32-83-07-14-26-7d	2024-10-13_e75163529b90ea2522efebd973826735_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-83-07-14-26-7d\WpadDecisionReason = "1"	2024-10-13_e75163529b90ea2522efebd973826735_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-83-07-14-26-7d\WpadDecision = "0"	2024-10-13_e75163529b90ea2522efebd973826735_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-13_e75163529b90ea2522efebd973826735_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-13_e75163529b90ea2522efebd973826735_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-13_e75163529b90ea2522efebd973826735_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-13_e75163529b90ea2522efebd973826735_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-13_e75163529b90ea2522efebd973826735_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{148341C8-0451-4003-8958-DD5733BC0A86}\WpadDecisionReason = "1"	2024-10-13_e75163529b90ea2522efebd973826735_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-13_e75163529b90ea2522efebd973826735_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-13_e75163529b90ea2522efebd973826735_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00ea000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-13_e75163529b90ea2522efebd973826735_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-13_e75163529b90ea2522efebd973826735_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-13_e75163529b90ea2522efebd973826735_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-13_e75163529b90ea2522efebd973826735_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-13_e75163529b90ea2522efebd973826735_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{148341C8-0451-4003-8958-DD5733BC0A86}\WpadDecisionTime = 708977bd951ddb01	2024-10-13_e75163529b90ea2522efebd973826735_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{148341C8-0451-4003-8958-DD5733BC0A86}\WpadDecision = "0"	2024-10-13_e75163529b90ea2522efebd973826735_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-83-07-14-26-7d	2024-10-13_e75163529b90ea2522efebd973826735_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-83-07-14-26-7d\WpadDecisionTime = 708977bd951ddb01	2024-10-13_e75163529b90ea2522efebd973826735_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-13_e75163529b90ea2522efebd973826735_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-13_e75163529b90ea2522efebd973826735_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2504
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2748

C:\Users\Admin\AppData\Local\Temp\2024-10-13_e75163529b90ea2522efebd973826735_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-13_e75163529b90ea2522efebd973826735_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2180

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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