wannacry | 8d569015451b55f6b5f8db274202ff33aae3c8a854817729af1bb09d448bcc29

General

Target

2024-08-21_a6f524d7b44865f347da60568ef84465_wannacry.exe
Size

5.0MB
MD5

a6f524d7b44865f347da60568ef84465
SHA1

6de241f607f5d938d63b80d4c225cbf467ee9574
SHA256

8d569015451b55f6b5f8db274202ff33aae3c8a854817729af1bb09d448bcc29
SHA512

8fc1ceed7181046b68d8aa637b28e31025c0ae8b30ba5b3a9610138b68b9926946ce29015a8d04934dd808ae82a726115ef997bf59d9f5aca3670142cff16475
SSDEEP

12288:GebLgPlu+QhMbaIMu7L5NVErCA4z2g6rTcbckPU82:XbLgddQhfdmMSirYbcM

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3327) 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
2200	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	2024-08-21_a6f524d7b44865f347da60568ef84465_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-08-21_a6f524d7b44865f347da60568ef84465_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	2024-08-21_a6f524d7b44865f347da60568ef84465_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-08-21_a6f524d7b44865f347da60568ef84465_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\86-aa-82-d4-75-75\WpadDecision = "0"	2024-08-21_a6f524d7b44865f347da60568ef84465_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-08-21_a6f524d7b44865f347da60568ef84465_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{57B3FFFB-207B-4ECB-B6BF-EDCF9B9D5C7E}\WpadDecisionTime = 601717e2a0f3da01	2024-08-21_a6f524d7b44865f347da60568ef84465_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{57B3FFFB-207B-4ECB-B6BF-EDCF9B9D5C7E}\WpadNetworkName = "Network 2"	2024-08-21_a6f524d7b44865f347da60568ef84465_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{57B3FFFB-207B-4ECB-B6BF-EDCF9B9D5C7E}\86-aa-82-d4-75-75	2024-08-21_a6f524d7b44865f347da60568ef84465_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-08-21_a6f524d7b44865f347da60568ef84465_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0186000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-21_a6f524d7b44865f347da60568ef84465_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\86-aa-82-d4-75-75	2024-08-21_a6f524d7b44865f347da60568ef84465_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-08-21_a6f524d7b44865f347da60568ef84465_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{57B3FFFB-207B-4ECB-B6BF-EDCF9B9D5C7E}	2024-08-21_a6f524d7b44865f347da60568ef84465_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{57B3FFFB-207B-4ECB-B6BF-EDCF9B9D5C7E}\WpadDecisionReason = "1"	2024-08-21_a6f524d7b44865f347da60568ef84465_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{57B3FFFB-207B-4ECB-B6BF-EDCF9B9D5C7E}\WpadDecision = "0"	2024-08-21_a6f524d7b44865f347da60568ef84465_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-08-21_a6f524d7b44865f347da60568ef84465_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-21_a6f524d7b44865f347da60568ef84465_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-08-21_a6f524d7b44865f347da60568ef84465_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-08-21_a6f524d7b44865f347da60568ef84465_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-08-21_a6f524d7b44865f347da60568ef84465_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-08-21_a6f524d7b44865f347da60568ef84465_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\86-aa-82-d4-75-75\WpadDecisionReason = "1"	2024-08-21_a6f524d7b44865f347da60568ef84465_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\86-aa-82-d4-75-75\WpadDecisionTime = 601717e2a0f3da01	2024-08-21_a6f524d7b44865f347da60568ef84465_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-21_a6f524d7b44865f347da60568ef84465_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-08-21_a6f524d7b44865f347da60568ef84465_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-08-21_a6f524d7b44865f347da60568ef84465_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-08-21_a6f524d7b44865f347da60568ef84465_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-08-21_a6f524d7b44865f347da60568ef84465_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-21_a6f524d7b44865f347da60568ef84465_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2576
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2200

C:\Users\Admin\AppData\Local\Temp\2024-08-21_a6f524d7b44865f347da60568ef84465_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-08-21_a6f524d7b44865f347da60568ef84465_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1840

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
b481035657e606753d425c2bc68e8311

SHA1
143cd755ba706570e91aa80ca58a33d8a3fc8ef9

SHA256
2ef7f94fd0c8a7224411f32fdbdfe65c15ca7f79812e1a9adf18280a1a0fada2

SHA512
74fb6363231652370bb06671df9c013b7444f7645fa228d390804441d7992f6f4bb896ce32a553e345a7aa6f2687ea5215a0ff9b246e7aac592ec385f8cb2b73

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Analysis

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