wannacry | 21b3d8344d02d6064b90139343116701272c3a561fecd24365b4eef69364e825

General

Target

2024-12-11_d9aae878172ef0b8c01e724728e97a4f_wannacry.exe
Size

5.0MB
MD5

d9aae878172ef0b8c01e724728e97a4f
SHA1

91006e9ff0cdff93904baa38332c56307ad24b37
SHA256

21b3d8344d02d6064b90139343116701272c3a561fecd24365b4eef69364e825
SHA512

c703edc76b0159d70da4b25315f8da1597422dee437a23bccc00db51ae8be4e7f272722f96e1436b93f0b3b76b6f0734b9588109a485b5359642d5857fb28de0
SSDEEP

6144:GE9l9yUqIYVTH5DgSg8ajldktM0XXrP2QhMV9qbBLIwYQuy8DLq:GvbLgPlu+QhMbaIMu7L

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 (3280) 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
3064	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	2024-12-11_d9aae878172ef0b8c01e724728e97a4f_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-12-11_d9aae878172ef0b8c01e724728e97a4f_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	2024-12-11_d9aae878172ef0b8c01e724728e97a4f_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-11_d9aae878172ef0b8c01e724728e97a4f_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\{0C672DDA-D49C-4CEB-B386-91276F49C95A}\WpadDecisionTime = c09adcd4b64bdb01	2024-12-11_d9aae878172ef0b8c01e724728e97a4f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5e-88-2f-7c-90-fb	2024-12-11_d9aae878172ef0b8c01e724728e97a4f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-12-11_d9aae878172ef0b8c01e724728e97a4f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-12-11_d9aae878172ef0b8c01e724728e97a4f_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-11_d9aae878172ef0b8c01e724728e97a4f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-12-11_d9aae878172ef0b8c01e724728e97a4f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0C672DDA-D49C-4CEB-B386-91276F49C95A}	2024-12-11_d9aae878172ef0b8c01e724728e97a4f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0C672DDA-D49C-4CEB-B386-91276F49C95A}\WpadDecisionReason = "1"	2024-12-11_d9aae878172ef0b8c01e724728e97a4f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5e-88-2f-7c-90-fb\WpadDecisionReason = "1"	2024-12-11_d9aae878172ef0b8c01e724728e97a4f_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-12-11_d9aae878172ef0b8c01e724728e97a4f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-12-11_d9aae878172ef0b8c01e724728e97a4f_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0185000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-11_d9aae878172ef0b8c01e724728e97a4f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0C672DDA-D49C-4CEB-B386-91276F49C95A}\WpadDecision = "0"	2024-12-11_d9aae878172ef0b8c01e724728e97a4f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-11_d9aae878172ef0b8c01e724728e97a4f_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-12-11_d9aae878172ef0b8c01e724728e97a4f_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5e-88-2f-7c-90-fb\WpadDecisionTime = c09adcd4b64bdb01	2024-12-11_d9aae878172ef0b8c01e724728e97a4f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0C672DDA-D49C-4CEB-B386-91276F49C95A}\5e-88-2f-7c-90-fb	2024-12-11_d9aae878172ef0b8c01e724728e97a4f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5e-88-2f-7c-90-fb\WpadDecision = "0"	2024-12-11_d9aae878172ef0b8c01e724728e97a4f_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-11_d9aae878172ef0b8c01e724728e97a4f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-11_d9aae878172ef0b8c01e724728e97a4f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-12-11_d9aae878172ef0b8c01e724728e97a4f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-12-11_d9aae878172ef0b8c01e724728e97a4f_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-12-11_d9aae878172ef0b8c01e724728e97a4f_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0C672DDA-D49C-4CEB-B386-91276F49C95A}\WpadNetworkName = "Network 3"	2024-12-11_d9aae878172ef0b8c01e724728e97a4f_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-11_d9aae878172ef0b8c01e724728e97a4f_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-11_d9aae878172ef0b8c01e724728e97a4f_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2868
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:3064

C:\Users\Admin\AppData\Local\Temp\2024-12-11_d9aae878172ef0b8c01e724728e97a4f_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-12-11_d9aae878172ef0b8c01e724728e97a4f_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2316

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
8890b2b1fbade480955c7d576a846652

SHA1
734d9e0018310ab86e12c88dcc79b365ccc1a6c1

SHA256
0f0f004dd1686ebfe81120b050929309e7a431cb8594c1085a9b96eac0f0f96e

SHA512
697bcf8fada7063c0f24250354d8f5773d9ce4a36de4873f871b48069ef508f9762f154d3739e7a26659d3fa4b3af4d3b71c7c0cd34f9378df86bcc55b9f65da

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