wannacry | b4402b78fa66985c0d39adbcb925826374c1f5f5b435eca4adc5183f38aaea33

General

Target

2024-12-07_4c6473e47348405899f76a0151b8957d_wannacry.exe
Size

5.0MB
MD5

4c6473e47348405899f76a0151b8957d
SHA1

0b8b8abe11769e60e682406e55c9b31a44a94dd7
SHA256

b4402b78fa66985c0d39adbcb925826374c1f5f5b435eca4adc5183f38aaea33
SHA512

42a048607f4264029ea4e78130862067b202dc751f2f88f3c732796faab090ebfed0b851199db53fe471aea2050cc1ff47152781bf4e0d9a2429160115d82bff
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2:yDqPe1Cxcxk3ZAEUadzR8yc4

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 (3163) 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
2740	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	2024-12-07_4c6473e47348405899f76a0151b8957d_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-12-07_4c6473e47348405899f76a0151b8957d_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	2024-12-07_4c6473e47348405899f76a0151b8957d_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-07_4c6473e47348405899f76a0151b8957d_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-07_4c6473e47348405899f76a0151b8957d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-07_4c6473e47348405899f76a0151b8957d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-12-07_4c6473e47348405899f76a0151b8957d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D5F5702D-9D89-4BE5-9B80-12B22130B0DB}\WpadNetworkName = "Network 3"	2024-12-07_4c6473e47348405899f76a0151b8957d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-12-07_4c6473e47348405899f76a0151b8957d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-12-07_4c6473e47348405899f76a0151b8957d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-12-07_4c6473e47348405899f76a0151b8957d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D5F5702D-9D89-4BE5-9B80-12B22130B0DB}\66-83-94-06-ae-09	2024-12-07_4c6473e47348405899f76a0151b8957d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\66-83-94-06-ae-09\WpadDecision = "0"	2024-12-07_4c6473e47348405899f76a0151b8957d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-07_4c6473e47348405899f76a0151b8957d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-12-07_4c6473e47348405899f76a0151b8957d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\66-83-94-06-ae-09	2024-12-07_4c6473e47348405899f76a0151b8957d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-12-07_4c6473e47348405899f76a0151b8957d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-12-07_4c6473e47348405899f76a0151b8957d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00f7000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-07_4c6473e47348405899f76a0151b8957d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D5F5702D-9D89-4BE5-9B80-12B22130B0DB}	2024-12-07_4c6473e47348405899f76a0151b8957d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D5F5702D-9D89-4BE5-9B80-12B22130B0DB}\WpadDecisionReason = "1"	2024-12-07_4c6473e47348405899f76a0151b8957d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-12-07_4c6473e47348405899f76a0151b8957d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-12-07_4c6473e47348405899f76a0151b8957d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-07_4c6473e47348405899f76a0151b8957d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\66-83-94-06-ae-09\WpadDecisionTime = b0b479c89248db01	2024-12-07_4c6473e47348405899f76a0151b8957d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D5F5702D-9D89-4BE5-9B80-12B22130B0DB}\WpadDecisionTime = b0b479c89248db01	2024-12-07_4c6473e47348405899f76a0151b8957d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D5F5702D-9D89-4BE5-9B80-12B22130B0DB}\WpadDecision = "0"	2024-12-07_4c6473e47348405899f76a0151b8957d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\66-83-94-06-ae-09\WpadDecisionReason = "1"	2024-12-07_4c6473e47348405899f76a0151b8957d_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-07_4c6473e47348405899f76a0151b8957d_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-07_4c6473e47348405899f76a0151b8957d_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1972
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2740

C:\Users\Admin\AppData\Local\Temp\2024-12-07_4c6473e47348405899f76a0151b8957d_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-12-07_4c6473e47348405899f76a0151b8957d_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2416

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

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
16cf4ff41c9fd0e30aa6afb7ee6c5f1c

SHA1
f388b94b8624db2f08b370a30d6564cb866ee826

SHA256
9c3d2923e7fbaeefe6987714217148e8f23fc0bd8c049e3690fbe0d940de27ac

SHA512
2d5a4be22c5ddf5051cfaf8e5871a1d5eea675749ecd8c3e32ec7dc7935d4e788fa51ac5c962df967424bdd845c8543a992e656ea6a40c137ea0944a38aabb14

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