wannacry | a0b6a0a6b33c299473a1f6a96ac0e6878a9fa862a0abfdf385c0b516e0cbfce3

General

Target

202409059c9dc0df6e55fd08f6aa01f6805606f8wannacry.exe
Size

3.6MB
MD5

9c9dc0df6e55fd08f6aa01f6805606f8
SHA1

afa1c5da4bb9177102080671ca780f8be2275211
SHA256

a0b6a0a6b33c299473a1f6a96ac0e6878a9fa862a0abfdf385c0b516e0cbfce3
SHA512

2f776fc7da9cf9cb10f79db0029f0884a4c3f132d26eeca4a96bab0307a63ec02d79c259452aa570c61d49ed0c4b110e8c546f2c078795e0538d7a7c4b5fed78
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhvxWa9p93R8yAVp2H:yDqPe1Cxcxk3ZAEUaFR8yc4H

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3119) 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
1720	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	202409059c9dc0df6e55fd08f6aa01f6805606f8wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	202409059c9dc0df6e55fd08f6aa01f6805606f8wannacry.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	202409059c9dc0df6e55fd08f6aa01f6805606f8wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	202409059c9dc0df6e55fd08f6aa01f6805606f8wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\52-4d-83-d4-98-db\WpadDecision = "0"	202409059c9dc0df6e55fd08f6aa01f6805606f8wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	202409059c9dc0df6e55fd08f6aa01f6805606f8wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	202409059c9dc0df6e55fd08f6aa01f6805606f8wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	202409059c9dc0df6e55fd08f6aa01f6805606f8wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\52-4d-83-d4-98-db\WpadDecisionTime = b044a7b5b3ffda01	202409059c9dc0df6e55fd08f6aa01f6805606f8wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CD3E9AB8-C50E-449A-9003-0A81678A0B63}	202409059c9dc0df6e55fd08f6aa01f6805606f8wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CD3E9AB8-C50E-449A-9003-0A81678A0B63}\WpadDecisionTime = b044a7b5b3ffda01	202409059c9dc0df6e55fd08f6aa01f6805606f8wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\52-4d-83-d4-98-db	202409059c9dc0df6e55fd08f6aa01f6805606f8wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	202409059c9dc0df6e55fd08f6aa01f6805606f8wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	202409059c9dc0df6e55fd08f6aa01f6805606f8wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	202409059c9dc0df6e55fd08f6aa01f6805606f8wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	202409059c9dc0df6e55fd08f6aa01f6805606f8wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f011e000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	202409059c9dc0df6e55fd08f6aa01f6805606f8wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CD3E9AB8-C50E-449A-9003-0A81678A0B63}\WpadDecision = "0"	202409059c9dc0df6e55fd08f6aa01f6805606f8wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CD3E9AB8-C50E-449A-9003-0A81678A0B63}\WpadNetworkName = "Network 3"	202409059c9dc0df6e55fd08f6aa01f6805606f8wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CD3E9AB8-C50E-449A-9003-0A81678A0B63}\52-4d-83-d4-98-db	202409059c9dc0df6e55fd08f6aa01f6805606f8wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	202409059c9dc0df6e55fd08f6aa01f6805606f8wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	202409059c9dc0df6e55fd08f6aa01f6805606f8wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	202409059c9dc0df6e55fd08f6aa01f6805606f8wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	202409059c9dc0df6e55fd08f6aa01f6805606f8wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	202409059c9dc0df6e55fd08f6aa01f6805606f8wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	202409059c9dc0df6e55fd08f6aa01f6805606f8wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CD3E9AB8-C50E-449A-9003-0A81678A0B63}\WpadDecisionReason = "1"	202409059c9dc0df6e55fd08f6aa01f6805606f8wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\52-4d-83-d4-98-db\WpadDecisionReason = "1"	202409059c9dc0df6e55fd08f6aa01f6805606f8wannacry.exe

C:\Users\Admin\AppData\Local\Temp\202409059c9dc0df6e55fd08f6aa01f6805606f8wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\202409059c9dc0df6e55fd08f6aa01f6805606f8wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1072
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1720

C:\Users\Admin\AppData\Local\Temp\202409059c9dc0df6e55fd08f6aa01f6805606f8wannacry.exe
C:\Users\Admin\AppData\Local\Temp\202409059c9dc0df6e55fd08f6aa01f6805606f8wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2704

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
6d07e0b41d84b9fbaacba7a313cd5526

SHA1
eee736d8868ad1bf091b621524ca3e8429f079f1

SHA256
67afa5eb1c9b995eefb7cc019abfe44b5cac07bc7df008236ddccb7fa58ebc3c

SHA512
c159edb764e7f8fdcbc02f004f42ed5295094e7be0e7d1d7c147152ca0a7e3484de44a04453d185cbd4cba8055b427ccadbfcbe5c5f36c9f4f214dbc95b466fd

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