wannacry | 5b2fb50bb0002839aac6b0ba3782b091e96a122401d3732738de47c6d9f7eae5

General

Target

2024-10-10_fe10e6c87e2fd295ca8e206b6d5e198a_wannacry.exe
Size

3.6MB
MD5

fe10e6c87e2fd295ca8e206b6d5e198a
SHA1

51a37f61fb165b7f6784ffa56dfefd9ae04e3310
SHA256

5b2fb50bb0002839aac6b0ba3782b091e96a122401d3732738de47c6d9f7eae5
SHA512

8d4d5b03593106b4383133d83a00324ad5af476922790bc0ec2c804e6d00d6586923ec0a3ff5634f312ae4c87ca30f685c28f2d0b7fe6c868f654cf32d255c6f
SSDEEP

49152:2nAQcMSPbcBVQej0NRx+TSqTdX1HkQo6SA5caEa:yDcPoBhCRxcSUDk36SA

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3214) 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
2800	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	2024-10-10_fe10e6c87e2fd295ca8e206b6d5e198a_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-10_fe10e6c87e2fd295ca8e206b6d5e198a_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	2024-10-10_fe10e6c87e2fd295ca8e206b6d5e198a_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-10_fe10e6c87e2fd295ca8e206b6d5e198a_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-10_fe10e6c87e2fd295ca8e206b6d5e198a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-10_fe10e6c87e2fd295ca8e206b6d5e198a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-10_fe10e6c87e2fd295ca8e206b6d5e198a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8E7CC722-C7FF-4312-808E-95646135DFC9}\WpadDecision = "0"	2024-10-10_fe10e6c87e2fd295ca8e206b6d5e198a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d2-10-1f-df-d1-aa\WpadDecisionReason = "1"	2024-10-10_fe10e6c87e2fd295ca8e206b6d5e198a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00b6000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-10_fe10e6c87e2fd295ca8e206b6d5e198a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8E7CC722-C7FF-4312-808E-95646135DFC9}\WpadDecisionReason = "1"	2024-10-10_fe10e6c87e2fd295ca8e206b6d5e198a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8E7CC722-C7FF-4312-808E-95646135DFC9}\WpadDecisionTime = d0bfbd66621bdb01	2024-10-10_fe10e6c87e2fd295ca8e206b6d5e198a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-10_fe10e6c87e2fd295ca8e206b6d5e198a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-10_fe10e6c87e2fd295ca8e206b6d5e198a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-10_fe10e6c87e2fd295ca8e206b6d5e198a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-10_fe10e6c87e2fd295ca8e206b6d5e198a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-10_fe10e6c87e2fd295ca8e206b6d5e198a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d2-10-1f-df-d1-aa\WpadDecision = "0"	2024-10-10_fe10e6c87e2fd295ca8e206b6d5e198a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-10_fe10e6c87e2fd295ca8e206b6d5e198a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-10_fe10e6c87e2fd295ca8e206b6d5e198a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-10_fe10e6c87e2fd295ca8e206b6d5e198a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d2-10-1f-df-d1-aa	2024-10-10_fe10e6c87e2fd295ca8e206b6d5e198a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d2-10-1f-df-d1-aa\WpadDecisionTime = d0bfbd66621bdb01	2024-10-10_fe10e6c87e2fd295ca8e206b6d5e198a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-10_fe10e6c87e2fd295ca8e206b6d5e198a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-10_fe10e6c87e2fd295ca8e206b6d5e198a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8E7CC722-C7FF-4312-808E-95646135DFC9}	2024-10-10_fe10e6c87e2fd295ca8e206b6d5e198a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8E7CC722-C7FF-4312-808E-95646135DFC9}\WpadNetworkName = "Network 3"	2024-10-10_fe10e6c87e2fd295ca8e206b6d5e198a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8E7CC722-C7FF-4312-808E-95646135DFC9}\d2-10-1f-df-d1-aa	2024-10-10_fe10e6c87e2fd295ca8e206b6d5e198a_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-10_fe10e6c87e2fd295ca8e206b6d5e198a_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-10_fe10e6c87e2fd295ca8e206b6d5e198a_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2512
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2800

C:\Users\Admin\AppData\Local\Temp\2024-10-10_fe10e6c87e2fd295ca8e206b6d5e198a_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-10_fe10e6c87e2fd295ca8e206b6d5e198a_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1044

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

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
2a481f7b50acbb241d264f7028b76bd3

SHA1
769d4a2fe2af0a3c44b35c05681ee0d5a49b193c

SHA256
2bcd5b2aff2d74e72022af0ca96e5b86a3fab972a6a64df13efcbb6e747408b1

SHA512
dc4c52677e7f21b64896c866a58e29996987aa064781e06a679a525fb65fe39bd6c5a4c3b489b4ed08bd19ad9cef34d35f0c11972e4c480d27b17379ed1857fe

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Analysis

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