wannacry | c483806aea08e3dbf7d03f4e214c075f8029add04ef2e57856e6e6527478e751

General

Target

2024-10-12_2f793f4d1e74cfca39f0ae07336628b9_wannacry.exe
Size

3.6MB
MD5

2f793f4d1e74cfca39f0ae07336628b9
SHA1

401f28b1629b95de99b2ead55e1fe8a2500b01e9
SHA256

c483806aea08e3dbf7d03f4e214c075f8029add04ef2e57856e6e6527478e751
SHA512

b57397ce307cf0191543cbd24a773c17bbbaf4a8d0b51a24225412aa945ba35848259ed18fa8e2ad187525775d0d50e708a7f815556b86f7afb41bc6b82fe9de
SSDEEP

24576:2bLgddQhfdmMSirYbcMNgef0QeQjG7M+YJuYZa9c8zaZbI9FJGccE:2nAQqMSPbcBVQejI+YV4c/b

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3266) 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
2168	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	2024-10-12_2f793f4d1e74cfca39f0ae07336628b9_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-12_2f793f4d1e74cfca39f0ae07336628b9_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	2024-10-12_2f793f4d1e74cfca39f0ae07336628b9_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-12_2f793f4d1e74cfca39f0ae07336628b9_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\AutoDetect = "1"	2024-10-12_2f793f4d1e74cfca39f0ae07336628b9_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-12_2f793f4d1e74cfca39f0ae07336628b9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d6-e1-6f-32-12-58\WpadDecision = "0"	2024-10-12_2f793f4d1e74cfca39f0ae07336628b9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_2f793f4d1e74cfca39f0ae07336628b9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E9384D65-AB08-4757-A8C9-11D9498AE428}\WpadDecisionReason = "1"	2024-10-12_2f793f4d1e74cfca39f0ae07336628b9_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d6-e1-6f-32-12-58\WpadDecisionTime = f0e3b8c1621cdb01	2024-10-12_2f793f4d1e74cfca39f0ae07336628b9_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-12_2f793f4d1e74cfca39f0ae07336628b9_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f007a000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_2f793f4d1e74cfca39f0ae07336628b9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E9384D65-AB08-4757-A8C9-11D9498AE428}	2024-10-12_2f793f4d1e74cfca39f0ae07336628b9_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E9384D65-AB08-4757-A8C9-11D9498AE428}\WpadNetworkName = "Network 3"	2024-10-12_2f793f4d1e74cfca39f0ae07336628b9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-12_2f793f4d1e74cfca39f0ae07336628b9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_2f793f4d1e74cfca39f0ae07336628b9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-12_2f793f4d1e74cfca39f0ae07336628b9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-12_2f793f4d1e74cfca39f0ae07336628b9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d6-e1-6f-32-12-58	2024-10-12_2f793f4d1e74cfca39f0ae07336628b9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d6-e1-6f-32-12-58\WpadDecisionReason = "1"	2024-10-12_2f793f4d1e74cfca39f0ae07336628b9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-12_2f793f4d1e74cfca39f0ae07336628b9_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E9384D65-AB08-4757-A8C9-11D9498AE428}\WpadDecisionTime = f0e3b8c1621cdb01	2024-10-12_2f793f4d1e74cfca39f0ae07336628b9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E9384D65-AB08-4757-A8C9-11D9498AE428}\WpadDecision = "0"	2024-10-12_2f793f4d1e74cfca39f0ae07336628b9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E9384D65-AB08-4757-A8C9-11D9498AE428}\d6-e1-6f-32-12-58	2024-10-12_2f793f4d1e74cfca39f0ae07336628b9_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_2f793f4d1e74cfca39f0ae07336628b9_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_2f793f4d1e74cfca39f0ae07336628b9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-12_2f793f4d1e74cfca39f0ae07336628b9_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-12_2f793f4d1e74cfca39f0ae07336628b9_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-12_2f793f4d1e74cfca39f0ae07336628b9_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_2f793f4d1e74cfca39f0ae07336628b9_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1628
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2168

C:\Users\Admin\AppData\Local\Temp\2024-10-12_2f793f4d1e74cfca39f0ae07336628b9_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-12_2f793f4d1e74cfca39f0ae07336628b9_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2900

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
ecd438dc96670175359b048538c272ab

SHA1
c8f346302f0b0b4eceea161674f59d392fca7909

SHA256
d1f722d9e0b2525fbd5fb2a340946e433578790e67854fd80abe90761c40f40d

SHA512
7966505d444d617d8395abb07e23d8fc61bc4c6221779984c931712c6048c66e44d24ba3224aa8a0069c7bc855ab443d7d443ebde0cb11ae2a7a77bace15b933

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