wannacry | 68baedde98de0b2c5988b4afed250d8e946846e67093b3ecb42e2cfc722578e7

General

Target

2024-10-12_7ef672e3e1d9015a95831848fe26f068_wannacry.exe
Size

3.6MB
MD5

7ef672e3e1d9015a95831848fe26f068
SHA1

488aa9ed4472f657f0f49afadb668f65b294d3eb
SHA256

68baedde98de0b2c5988b4afed250d8e946846e67093b3ecb42e2cfc722578e7
SHA512

d78d71b8c3f0013aa872c567019e5b95f2ac3b7ed00ab4f9bc4d3d41b7633cb83531e33fde80f90427fec9af019e32b0b728daf652268eb06007fb118421e26e
SSDEEP

98304:XDqPoBhz1aRxcSUDk36SAEdhvxWa9U2HI:XDqPe1Cxcxk3ZAEUahHI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3270) 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
2916	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	2024-10-12_7ef672e3e1d9015a95831848fe26f068_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-12_7ef672e3e1d9015a95831848fe26f068_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	2024-10-12_7ef672e3e1d9015a95831848fe26f068_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-12_7ef672e3e1d9015a95831848fe26f068_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B6FE971C-EE18-4DF0-930E-6E65E4CF35D5}\WpadDecision = "0"	2024-10-12_7ef672e3e1d9015a95831848fe26f068_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\22-7b-ed-da-f9-02\WpadDecision = "0"	2024-10-12_7ef672e3e1d9015a95831848fe26f068_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_7ef672e3e1d9015a95831848fe26f068_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-12_7ef672e3e1d9015a95831848fe26f068_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-12_7ef672e3e1d9015a95831848fe26f068_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0129000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_7ef672e3e1d9015a95831848fe26f068_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B6FE971C-EE18-4DF0-930E-6E65E4CF35D5}	2024-10-12_7ef672e3e1d9015a95831848fe26f068_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B6FE971C-EE18-4DF0-930E-6E65E4CF35D5}\WpadDecisionTime = 30378f89631cdb01	2024-10-12_7ef672e3e1d9015a95831848fe26f068_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-12_7ef672e3e1d9015a95831848fe26f068_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-12_7ef672e3e1d9015a95831848fe26f068_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\22-7b-ed-da-f9-02	2024-10-12_7ef672e3e1d9015a95831848fe26f068_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\22-7b-ed-da-f9-02\WpadDecisionReason = "1"	2024-10-12_7ef672e3e1d9015a95831848fe26f068_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-12_7ef672e3e1d9015a95831848fe26f068_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-12_7ef672e3e1d9015a95831848fe26f068_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-12_7ef672e3e1d9015a95831848fe26f068_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B6FE971C-EE18-4DF0-930E-6E65E4CF35D5}\WpadDecisionReason = "1"	2024-10-12_7ef672e3e1d9015a95831848fe26f068_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B6FE971C-EE18-4DF0-930E-6E65E4CF35D5}\WpadNetworkName = "Network 3"	2024-10-12_7ef672e3e1d9015a95831848fe26f068_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\22-7b-ed-da-f9-02\WpadDecisionTime = 30378f89631cdb01	2024-10-12_7ef672e3e1d9015a95831848fe26f068_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_7ef672e3e1d9015a95831848fe26f068_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_7ef672e3e1d9015a95831848fe26f068_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_7ef672e3e1d9015a95831848fe26f068_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-12_7ef672e3e1d9015a95831848fe26f068_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-12_7ef672e3e1d9015a95831848fe26f068_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B6FE971C-EE18-4DF0-930E-6E65E4CF35D5}\22-7b-ed-da-f9-02	2024-10-12_7ef672e3e1d9015a95831848fe26f068_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-12_7ef672e3e1d9015a95831848fe26f068_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_7ef672e3e1d9015a95831848fe26f068_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2308
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2916

C:\Users\Admin\AppData\Local\Temp\2024-10-12_7ef672e3e1d9015a95831848fe26f068_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-12_7ef672e3e1d9015a95831848fe26f068_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2552

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
153f71ef0dd5b40970706d650011a395

SHA1
1d7679e4ef4ac9176f79b792ffeca6e21b94695a

SHA256
cf9556cd6050cf9b45bb6041ecad928daf41e28abf8d6c9b7aca7ef0e98c9ac9

SHA512
1fe0e7d7a53556dfcb07ee8bab0256963f37b89592f8993647f23b94ded33882a809b5300ae36b1788bf56211e2c0f9cdb93912efb2876f06cc1903e200cb482

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Analysis

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