wannacry | 03c92d6d44f566c1af635d52e749abb31f361e28a9dd105e301e96f45cdba1c5

General

Target

2024-09-24_63563305b2beb4a73c8570807598e54c_wannacry.exe
Size

5.0MB
MD5

63563305b2beb4a73c8570807598e54c
SHA1

0c21089de352de6c290604431a8a4f5124c67cfa
SHA256

03c92d6d44f566c1af635d52e749abb31f361e28a9dd105e301e96f45cdba1c5
SHA512

92635f05272412cf3c9bdbca9b1a2a3c238393247943139284d7f7778193956b253f3f71b08ee35ce1ad0add510d229de96c3aca49080a6edc45e0569af1a728
SSDEEP

49152:XnAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SA:XDqPoBhz1aRxcSUDk36SA

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3212) 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
2628	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	2024-09-24_63563305b2beb4a73c8570807598e54c_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-24_63563305b2beb4a73c8570807598e54c_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	2024-09-24_63563305b2beb4a73c8570807598e54c_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-24_63563305b2beb4a73c8570807598e54c_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D146159C-DE1F-48C1-9D82-D5A2D6A5AB13}\WpadNetworkName = "Network 3"	2024-09-24_63563305b2beb4a73c8570807598e54c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fe-d7-53-78-cd-86	2024-09-24_63563305b2beb4a73c8570807598e54c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-09-24_63563305b2beb4a73c8570807598e54c_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-09-24_63563305b2beb4a73c8570807598e54c_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D146159C-DE1F-48C1-9D82-D5A2D6A5AB13}\WpadDecisionTime = a027b4a4670edb01	2024-09-24_63563305b2beb4a73c8570807598e54c_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fe-d7-53-78-cd-86\WpadDecisionTime = a027b4a4670edb01	2024-09-24_63563305b2beb4a73c8570807598e54c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-09-24_63563305b2beb4a73c8570807598e54c_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-09-24_63563305b2beb4a73c8570807598e54c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D146159C-DE1F-48C1-9D82-D5A2D6A5AB13}\WpadDecisionReason = "1"	2024-09-24_63563305b2beb4a73c8570807598e54c_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-09-24_63563305b2beb4a73c8570807598e54c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-09-24_63563305b2beb4a73c8570807598e54c_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0188000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-24_63563305b2beb4a73c8570807598e54c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D146159C-DE1F-48C1-9D82-D5A2D6A5AB13}	2024-09-24_63563305b2beb4a73c8570807598e54c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D146159C-DE1F-48C1-9D82-D5A2D6A5AB13}\WpadDecision = "0"	2024-09-24_63563305b2beb4a73c8570807598e54c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-24_63563305b2beb4a73c8570807598e54c_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-24_63563305b2beb4a73c8570807598e54c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-24_63563305b2beb4a73c8570807598e54c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fe-d7-53-78-cd-86\WpadDecisionReason = "1"	2024-09-24_63563305b2beb4a73c8570807598e54c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-09-24_63563305b2beb4a73c8570807598e54c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D146159C-DE1F-48C1-9D82-D5A2D6A5AB13}\fe-d7-53-78-cd-86	2024-09-24_63563305b2beb4a73c8570807598e54c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fe-d7-53-78-cd-86\WpadDecision = "0"	2024-09-24_63563305b2beb4a73c8570807598e54c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-24_63563305b2beb4a73c8570807598e54c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-09-24_63563305b2beb4a73c8570807598e54c_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-24_63563305b2beb4a73c8570807598e54c_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-24_63563305b2beb4a73c8570807598e54c_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-24_63563305b2beb4a73c8570807598e54c_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2756
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2628

C:\Users\Admin\AppData\Local\Temp\2024-09-24_63563305b2beb4a73c8570807598e54c_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-24_63563305b2beb4a73c8570807598e54c_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2424

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
edf00c46ded4d56bc3fb91b99b383ca0

SHA1
c79969b1d5ad1e76affc4ff83d06449cdf79a79c

SHA256
cf964d0090c18529675864b1007724ed5b8001c89271a20000c55001c81d9d6f

SHA512
c526d3ae0011d383d397c4c13364593adb5c6acc88650c165f8f88592405e33bd48c3cd2c69136e5e9f24c47d22264d3429947b9c5d9547f43ae7641ccd6ca34

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