wannacry | 5f5d3280c47371a32b3b838979752ba38806c79f83b01bef23b811e57c9a7b57

General

Target

2024-08-23_0e1348bbba0c267e031edb6149c9ea5d_wannacry.exe
Size

3.6MB
MD5

0e1348bbba0c267e031edb6149c9ea5d
SHA1

b2602649dff3895e11ccd2a82722d608941d7928
SHA256

5f5d3280c47371a32b3b838979752ba38806c79f83b01bef23b811e57c9a7b57
SHA512

d2a0c8562d9675d7d3b18f756d3940ebdeeb2b35c5ef566b081f88a1639f161791664a93c3cc6f983fdda1bc33d901406b03b8d1b68d6d66c3c885006eda3e3c
SSDEEP

49152:tnNQYMSPbcBV6j/TNRxe6SAARdhnvoVvI:hWYPoB4z5Rxe6SAEdhvX

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3275) 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
1256	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	2024-08-23_0e1348bbba0c267e031edb6149c9ea5d_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-08-23_0e1348bbba0c267e031edb6149c9ea5d_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	2024-08-23_0e1348bbba0c267e031edb6149c9ea5d_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-08-23_0e1348bbba0c267e031edb6149c9ea5d_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8D7F3AE0-65FE-4C90-89EB-5DBB67393265}\WpadDecisionTime = 005390ac3ef5da01	2024-08-23_0e1348bbba0c267e031edb6149c9ea5d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8D7F3AE0-65FE-4C90-89EB-5DBB67393265}\36-4c-3d-4d-5d-36	2024-08-23_0e1348bbba0c267e031edb6149c9ea5d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-08-23_0e1348bbba0c267e031edb6149c9ea5d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-08-23_0e1348bbba0c267e031edb6149c9ea5d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-08-23_0e1348bbba0c267e031edb6149c9ea5d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-08-23_0e1348bbba0c267e031edb6149c9ea5d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8D7F3AE0-65FE-4C90-89EB-5DBB67393265}	2024-08-23_0e1348bbba0c267e031edb6149c9ea5d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-08-23_0e1348bbba0c267e031edb6149c9ea5d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-23_0e1348bbba0c267e031edb6149c9ea5d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-08-23_0e1348bbba0c267e031edb6149c9ea5d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f009d000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-23_0e1348bbba0c267e031edb6149c9ea5d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8D7F3AE0-65FE-4C90-89EB-5DBB67393265}\WpadDecisionReason = "1"	2024-08-23_0e1348bbba0c267e031edb6149c9ea5d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-08-23_0e1348bbba0c267e031edb6149c9ea5d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-08-23_0e1348bbba0c267e031edb6149c9ea5d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-08-23_0e1348bbba0c267e031edb6149c9ea5d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8D7F3AE0-65FE-4C90-89EB-5DBB67393265}\WpadDecision = "0"	2024-08-23_0e1348bbba0c267e031edb6149c9ea5d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\36-4c-3d-4d-5d-36\WpadDecisionReason = "1"	2024-08-23_0e1348bbba0c267e031edb6149c9ea5d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\36-4c-3d-4d-5d-36\WpadDecisionTime = 005390ac3ef5da01	2024-08-23_0e1348bbba0c267e031edb6149c9ea5d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\36-4c-3d-4d-5d-36\WpadDecision = "0"	2024-08-23_0e1348bbba0c267e031edb6149c9ea5d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-23_0e1348bbba0c267e031edb6149c9ea5d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-08-23_0e1348bbba0c267e031edb6149c9ea5d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-08-23_0e1348bbba0c267e031edb6149c9ea5d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8D7F3AE0-65FE-4C90-89EB-5DBB67393265}\WpadNetworkName = "Network 3"	2024-08-23_0e1348bbba0c267e031edb6149c9ea5d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\36-4c-3d-4d-5d-36	2024-08-23_0e1348bbba0c267e031edb6149c9ea5d_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-08-23_0e1348bbba0c267e031edb6149c9ea5d_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-23_0e1348bbba0c267e031edb6149c9ea5d_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2120
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1256

C:\Users\Admin\AppData\Local\Temp\2024-08-23_0e1348bbba0c267e031edb6149c9ea5d_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-08-23_0e1348bbba0c267e031edb6149c9ea5d_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2508

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
582d04ff78da5bfd311804f49be81219

SHA1
8141c26f7f37f0313d5906fc0a2efe5df8775197

SHA256
5e45f72706f10483c079cd0a829d1b32dc92dfc977ed90420450869e3aad1d30

SHA512
b81483a4db7db5b94d05db9e0f7266f3ad59d4217f0718236b345a1a217a55a35ab2655ce2b1edc3a06cbf70e4cf0008941194e8842d97abeb970afd85db5ebe

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