wannacry | 5c26ab0ac8bcb0163532bacc9dcaefad8eabcde54096c077ff5106d540d1e711

General

Target

2024-09-21_033d88f940d1baabe13287bee707b69e_wannacry.exe
Size

5.0MB
MD5

033d88f940d1baabe13287bee707b69e
SHA1

b435bc1d590d5ebf7463587341f4c3669faa418e
SHA256

5c26ab0ac8bcb0163532bacc9dcaefad8eabcde54096c077ff5106d540d1e711
SHA512

939ed8db4259ead0c61e32e7e121a57a744d523538669798c2fcd86588dddbaca7e501845ced5a5734ada5cbf673e2412930e4b4cf5f24e5cc3404a21acb9558
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAAKAMEcaEaue5c/bXZROAx:yDqPoBhz1aRxcSUDk36SAZ59Uc/J

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3318) 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
2920	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	2024-09-21_033d88f940d1baabe13287bee707b69e_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-21_033d88f940d1baabe13287bee707b69e_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	2024-09-21_033d88f940d1baabe13287bee707b69e_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-21_033d88f940d1baabe13287bee707b69e_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2CA533EF-4B2F-471E-8186-029C7704BD66}	2024-09-21_033d88f940d1baabe13287bee707b69e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\2e-5f-f5-8d-51-a9\WpadDecisionReason = "1"	2024-09-21_033d88f940d1baabe13287bee707b69e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-09-21_033d88f940d1baabe13287bee707b69e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-09-21_033d88f940d1baabe13287bee707b69e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00b7000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-21_033d88f940d1baabe13287bee707b69e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2CA533EF-4B2F-471E-8186-029C7704BD66}\WpadDecisionTime = a092c632130cdb01	2024-09-21_033d88f940d1baabe13287bee707b69e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2CA533EF-4B2F-471E-8186-029C7704BD66}\WpadDecision = "0"	2024-09-21_033d88f940d1baabe13287bee707b69e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-21_033d88f940d1baabe13287bee707b69e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-21_033d88f940d1baabe13287bee707b69e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-09-21_033d88f940d1baabe13287bee707b69e_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-09-21_033d88f940d1baabe13287bee707b69e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2CA533EF-4B2F-471E-8186-029C7704BD66}\WpadDecisionReason = "1"	2024-09-21_033d88f940d1baabe13287bee707b69e_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-09-21_033d88f940d1baabe13287bee707b69e_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-09-21_033d88f940d1baabe13287bee707b69e_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2CA533EF-4B2F-471E-8186-029C7704BD66}\WpadNetworkName = "Network 3"	2024-09-21_033d88f940d1baabe13287bee707b69e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-09-21_033d88f940d1baabe13287bee707b69e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-21_033d88f940d1baabe13287bee707b69e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-21_033d88f940d1baabe13287bee707b69e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-21_033d88f940d1baabe13287bee707b69e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-09-21_033d88f940d1baabe13287bee707b69e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\2e-5f-f5-8d-51-a9	2024-09-21_033d88f940d1baabe13287bee707b69e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2CA533EF-4B2F-471E-8186-029C7704BD66}\2e-5f-f5-8d-51-a9	2024-09-21_033d88f940d1baabe13287bee707b69e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\2e-5f-f5-8d-51-a9\WpadDecisionTime = a092c632130cdb01	2024-09-21_033d88f940d1baabe13287bee707b69e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\2e-5f-f5-8d-51-a9\WpadDecision = "0"	2024-09-21_033d88f940d1baabe13287bee707b69e_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-21_033d88f940d1baabe13287bee707b69e_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-21_033d88f940d1baabe13287bee707b69e_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2736
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2920

C:\Users\Admin\AppData\Local\Temp\2024-09-21_033d88f940d1baabe13287bee707b69e_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-21_033d88f940d1baabe13287bee707b69e_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2656

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
ea4a3a376f0d13be957338954e4f1272

SHA1
ee3ca7a7a6b094d6ad888c134f3625abb79b5788

SHA256
f2484eae21e4b0e433386d23bbdb883a7af3f136151b3e46001fbf083c337b8a

SHA512
37931593d06acd4417baeea5fb78f7649b8a98d7ae94b5d4aa34f1b36a7e82b89dc661abded93caf5c3fbd80aa38c5f1a98a7c85cabf43dacd0301afc903a761

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Analysis

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