wannacry | b55fae7f3d19d8dff2291ad3c459ce3887c15f3f45f49bdfd66a6e74c2a1584b

General

Target

2024-11-04_e10e0f13876ea0f7dbd5bad42f879c31_wannacry.exe
Size

3.6MB
MD5

e10e0f13876ea0f7dbd5bad42f879c31
SHA1

f6a4e945d6a071051c38752555d5f7425c252592
SHA256

b55fae7f3d19d8dff2291ad3c459ce3887c15f3f45f49bdfd66a6e74c2a1584b
SHA512

142ecebaa53f860016c1c1f39a5cdab08b5b98f396bed838e3bb6014832827e65b97ced75b101c1ad8889ae7cc6cbcc72e937fbb7da74782e459b53e96f0a8b9
SSDEEP

12288:GebLgPlu+QhMbaIMu7L5NVErCA4z2g6rTcbckPU82900Ve7zw+K+D0r452:XbLgddQhfdmMSirYbcMNgef0Br45

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Wannacry family
wannacry
Contacts a large (3300) 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
2812	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	2024-11-04_e10e0f13876ea0f7dbd5bad42f879c31_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-11-04_e10e0f13876ea0f7dbd5bad42f879c31_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	2024-11-04_e10e0f13876ea0f7dbd5bad42f879c31_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-04_e10e0f13876ea0f7dbd5bad42f879c31_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-11-04_e10e0f13876ea0f7dbd5bad42f879c31_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-11-04_e10e0f13876ea0f7dbd5bad42f879c31_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-11-04_e10e0f13876ea0f7dbd5bad42f879c31_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4F5D665D-373D-4EEA-96AE-1EF018126EB1}	2024-11-04_e10e0f13876ea0f7dbd5bad42f879c31_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4F5D665D-373D-4EEA-96AE-1EF018126EB1}\WpadDecisionReason = "1"	2024-11-04_e10e0f13876ea0f7dbd5bad42f879c31_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4F5D665D-373D-4EEA-96AE-1EF018126EB1}\WpadDecision = "0"	2024-11-04_e10e0f13876ea0f7dbd5bad42f879c31_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f2-36-57-34-34-65\WpadDecisionReason = "1"	2024-11-04_e10e0f13876ea0f7dbd5bad42f879c31_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-04_e10e0f13876ea0f7dbd5bad42f879c31_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-11-04_e10e0f13876ea0f7dbd5bad42f879c31_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-04_e10e0f13876ea0f7dbd5bad42f879c31_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f2-36-57-34-34-65\WpadDecision = "0"	2024-11-04_e10e0f13876ea0f7dbd5bad42f879c31_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-04_e10e0f13876ea0f7dbd5bad42f879c31_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-11-04_e10e0f13876ea0f7dbd5bad42f879c31_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-11-04_e10e0f13876ea0f7dbd5bad42f879c31_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-11-04_e10e0f13876ea0f7dbd5bad42f879c31_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4F5D665D-373D-4EEA-96AE-1EF018126EB1}\WpadNetworkName = "Network 2"	2024-11-04_e10e0f13876ea0f7dbd5bad42f879c31_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f2-36-57-34-34-65	2024-11-04_e10e0f13876ea0f7dbd5bad42f879c31_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f2-36-57-34-34-65\WpadDecisionTime = c008157e982edb01	2024-11-04_e10e0f13876ea0f7dbd5bad42f879c31_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-04_e10e0f13876ea0f7dbd5bad42f879c31_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-11-04_e10e0f13876ea0f7dbd5bad42f879c31_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-11-04_e10e0f13876ea0f7dbd5bad42f879c31_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0113000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-04_e10e0f13876ea0f7dbd5bad42f879c31_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4F5D665D-373D-4EEA-96AE-1EF018126EB1}\WpadDecisionTime = c008157e982edb01	2024-11-04_e10e0f13876ea0f7dbd5bad42f879c31_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4F5D665D-373D-4EEA-96AE-1EF018126EB1}\f2-36-57-34-34-65	2024-11-04_e10e0f13876ea0f7dbd5bad42f879c31_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-04_e10e0f13876ea0f7dbd5bad42f879c31_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-04_e10e0f13876ea0f7dbd5bad42f879c31_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2532
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2812

C:\Users\Admin\AppData\Local\Temp\2024-11-04_e10e0f13876ea0f7dbd5bad42f879c31_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-04_e10e0f13876ea0f7dbd5bad42f879c31_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2148

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
c00f50109f2650c8ce47282ffc68e81d

SHA1
2dcfdb027019b50d435be39096fdca1136e3fd52

SHA256
06212190f2f30d0207a78ac2b4e0c89873088c819d46b7d46e2b7524ed77817c

SHA512
4f4761ef2d1952f506e043a4c84def1bac4cb2709849419905f6751b7ded2e343a17610d402ab41ad6bda000802ab96dbc188c753232054b27da6a6d429de41f

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Analysis

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