wannacry | e518aec9e3c9b14f9aa425182fbf94fb83d15605eb5e9668d50f046cc1ee5325

General

Target

2024-12-23_525a7037380e83146c5d9fc83aa11272_wannacry.exe
Size

5.0MB
MD5

525a7037380e83146c5d9fc83aa11272
SHA1

9a36f7b2150f367bbbee766356ca768dd1af5e5a
SHA256

e518aec9e3c9b14f9aa425182fbf94fb83d15605eb5e9668d50f046cc1ee5325
SHA512

6eab32b2b805abba5bc3d13dda005c0008ca36fe8f2a21f5e74e5533111d2f6f824c1e4aab9c7ca218d51b07f8837874c5c3f964c817221b54df3468d380eea6
SSDEEP

24576:XbLgddQhfdmMSirYbcMNgef0QeQjG/D8kIqRYo:XnAQqMSPbcBVQej/1

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 (3324) 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
2796	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	2024-12-23_525a7037380e83146c5d9fc83aa11272_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-12-23_525a7037380e83146c5d9fc83aa11272_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	2024-12-23_525a7037380e83146c5d9fc83aa11272_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-23_525a7037380e83146c5d9fc83aa11272_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-12-23_525a7037380e83146c5d9fc83aa11272_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-12-23_525a7037380e83146c5d9fc83aa11272_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-12-23_525a7037380e83146c5d9fc83aa11272_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0177000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-23_525a7037380e83146c5d9fc83aa11272_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-23_525a7037380e83146c5d9fc83aa11272_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-23_525a7037380e83146c5d9fc83aa11272_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-23_525a7037380e83146c5d9fc83aa11272_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-12-23_525a7037380e83146c5d9fc83aa11272_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A1B1A30-193A-42E8-8DDD-437CDEC1F28F}	2024-12-23_525a7037380e83146c5d9fc83aa11272_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A1B1A30-193A-42E8-8DDD-437CDEC1F28F}\WpadDecision = "0"	2024-12-23_525a7037380e83146c5d9fc83aa11272_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-1b-0d-75-68-1d	2024-12-23_525a7037380e83146c5d9fc83aa11272_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-1b-0d-75-68-1d\WpadDecisionTime = 602644063955db01	2024-12-23_525a7037380e83146c5d9fc83aa11272_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A1B1A30-193A-42E8-8DDD-437CDEC1F28F}\0a-1b-0d-75-68-1d	2024-12-23_525a7037380e83146c5d9fc83aa11272_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-1b-0d-75-68-1d\WpadDecisionReason = "1"	2024-12-23_525a7037380e83146c5d9fc83aa11272_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-12-23_525a7037380e83146c5d9fc83aa11272_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-23_525a7037380e83146c5d9fc83aa11272_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-12-23_525a7037380e83146c5d9fc83aa11272_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A1B1A30-193A-42E8-8DDD-437CDEC1F28F}\WpadDecisionTime = 602644063955db01	2024-12-23_525a7037380e83146c5d9fc83aa11272_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A1B1A30-193A-42E8-8DDD-437CDEC1F28F}\WpadNetworkName = "Network 3"	2024-12-23_525a7037380e83146c5d9fc83aa11272_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-1b-0d-75-68-1d\WpadDecision = "0"	2024-12-23_525a7037380e83146c5d9fc83aa11272_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-12-23_525a7037380e83146c5d9fc83aa11272_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-12-23_525a7037380e83146c5d9fc83aa11272_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-12-23_525a7037380e83146c5d9fc83aa11272_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A1B1A30-193A-42E8-8DDD-437CDEC1F28F}\WpadDecisionReason = "1"	2024-12-23_525a7037380e83146c5d9fc83aa11272_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-23_525a7037380e83146c5d9fc83aa11272_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-23_525a7037380e83146c5d9fc83aa11272_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2444
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2796

C:\Users\Admin\AppData\Local\Temp\2024-12-23_525a7037380e83146c5d9fc83aa11272_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-12-23_525a7037380e83146c5d9fc83aa11272_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1932

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
e1a5d9a205ae3ce46357b813f63046c9

SHA1
0a36f50b5b3fd46db0e2a0177add476a42ffdcb6

SHA256
65f5da01bf75464f9bca91005bad4998aa3e8d47280233a6b7cfe3de0d0fed4e

SHA512
e8dfd93f16a2a19fe81eabcb1898b48524514dd54abf4794c2703f56dc523db3dee50e13a70bbf9a665082a848200c14577f417fe1bf8edfb3b8dcc178e07b31

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