wannacry | 86c78c77dd2118b29d06899ef6da37abb0406556fdaf042b3761099d3842030d

General

Target

2024-12-17_63e29e22ca0885ce066a2f6bde092449_wannacry.exe
Size

5.0MB
MD5

63e29e22ca0885ce066a2f6bde092449
SHA1

0c7c437637a6ae60aaf5fb4fbe1bfff5ba35c968
SHA256

86c78c77dd2118b29d06899ef6da37abb0406556fdaf042b3761099d3842030d
SHA512

5af88d0e07afc7b829a4ad0d8d2251154213e0dbf4f31d5eb4ef7d90be74e50bd83b93e9e60cfa094171c5857b3f7265eb0a824bc3bb8f67b33a75cf6f28dfaa
SSDEEP

24576:2bLgddQhfdmMSirYbcMNgef0QeQjG/D8kIqRYoAdNLKz66:2nAQqMSPbcBVQej/1INR

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 (3247) 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
2564	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	2024-12-17_63e29e22ca0885ce066a2f6bde092449_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-12-17_63e29e22ca0885ce066a2f6bde092449_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	2024-12-17_63e29e22ca0885ce066a2f6bde092449_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-17_63e29e22ca0885ce066a2f6bde092449_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-17_63e29e22ca0885ce066a2f6bde092449_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-12-17_63e29e22ca0885ce066a2f6bde092449_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-12-17_63e29e22ca0885ce066a2f6bde092449_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8DCF7C7F-6E45-4C7D-87E0-57267A3AB5FD}\WpadDecisionReason = "1"	2024-12-17_63e29e22ca0885ce066a2f6bde092449_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8DCF7C7F-6E45-4C7D-87E0-57267A3AB5FD}\WpadDecisionTime = a01876147150db01	2024-12-17_63e29e22ca0885ce066a2f6bde092449_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8DCF7C7F-6E45-4C7D-87E0-57267A3AB5FD}\WpadNetworkName = "Network 3"	2024-12-17_63e29e22ca0885ce066a2f6bde092449_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8DCF7C7F-6E45-4C7D-87E0-57267A3AB5FD}\WpadDecision = "0"	2024-12-17_63e29e22ca0885ce066a2f6bde092449_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ae-59-e5-63-ee-d8	2024-12-17_63e29e22ca0885ce066a2f6bde092449_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ae-59-e5-63-ee-d8\WpadDecisionReason = "1"	2024-12-17_63e29e22ca0885ce066a2f6bde092449_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ae-59-e5-63-ee-d8\WpadDecision = "0"	2024-12-17_63e29e22ca0885ce066a2f6bde092449_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-17_63e29e22ca0885ce066a2f6bde092449_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-12-17_63e29e22ca0885ce066a2f6bde092449_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-12-17_63e29e22ca0885ce066a2f6bde092449_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-12-17_63e29e22ca0885ce066a2f6bde092449_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-12-17_63e29e22ca0885ce066a2f6bde092449_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-12-17_63e29e22ca0885ce066a2f6bde092449_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8DCF7C7F-6E45-4C7D-87E0-57267A3AB5FD}\ae-59-e5-63-ee-d8	2024-12-17_63e29e22ca0885ce066a2f6bde092449_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-17_63e29e22ca0885ce066a2f6bde092449_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-12-17_63e29e22ca0885ce066a2f6bde092449_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-17_63e29e22ca0885ce066a2f6bde092449_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-12-17_63e29e22ca0885ce066a2f6bde092449_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00d2000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-17_63e29e22ca0885ce066a2f6bde092449_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8DCF7C7F-6E45-4C7D-87E0-57267A3AB5FD}	2024-12-17_63e29e22ca0885ce066a2f6bde092449_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ae-59-e5-63-ee-d8\WpadDecisionTime = a01876147150db01	2024-12-17_63e29e22ca0885ce066a2f6bde092449_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-17_63e29e22ca0885ce066a2f6bde092449_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-17_63e29e22ca0885ce066a2f6bde092449_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2556
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2564

C:\Users\Admin\AppData\Local\Temp\2024-12-17_63e29e22ca0885ce066a2f6bde092449_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-12-17_63e29e22ca0885ce066a2f6bde092449_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2400

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
d995af840393bc57a9ec0e5f8d5e0762

SHA1
f696d6cb65d8e0399e66dd4def76a34a337f43a8

SHA256
466859149943b7b70b55636b1c7e5143cdc67c47926b5af09cd0a05a4c818246

SHA512
d3aa91bb50ae7bfd2eb3837b200033f6ea5f7adc60bb7ad647aa5f8f0943c192deed531d721e567e00f824aea59b0669325fde0da1adacd0261ef1b4468b2830

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Analysis

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