wannacry | cdee84319ca0545e78daa897c9f4c954419186674514ba95257d3fbf7550c444

General

Target

20240919d49b0133ff32c839046eb68e3964b9c4wannacry.exe
Size

5.0MB
MD5

d49b0133ff32c839046eb68e3964b9c4
SHA1

96502407227868966030a2eefd3a67797117f9b6
SHA256

cdee84319ca0545e78daa897c9f4c954419186674514ba95257d3fbf7550c444
SHA512

b21e77bd8abebfc91bee911713acbc52ebe00fc16abb6b21162640b9ce0d914262dabd4463d6eb434d4db37681275a2c44f3e595bf5efd4f0ba24213e6bb8b6c
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9:yDqPoBhz1aRxcSUDk36SAEdhvxWa9

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3308) 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
2968	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	20240919d49b0133ff32c839046eb68e3964b9c4wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	20240919d49b0133ff32c839046eb68e3964b9c4wannacry.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	20240919d49b0133ff32c839046eb68e3964b9c4wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	20240919d49b0133ff32c839046eb68e3964b9c4wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	20240919d49b0133ff32c839046eb68e3964b9c4wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EC30BDF3-C4DC-4075-A0A2-370429D0227C}	20240919d49b0133ff32c839046eb68e3964b9c4wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EC30BDF3-C4DC-4075-A0A2-370429D0227C}\WpadDecisionTime = e087a8a9e00adb01	20240919d49b0133ff32c839046eb68e3964b9c4wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ca-ac-b9-a0-0b-6c\WpadDecision = "0"	20240919d49b0133ff32c839046eb68e3964b9c4wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	20240919d49b0133ff32c839046eb68e3964b9c4wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EC30BDF3-C4DC-4075-A0A2-370429D0227C}\WpadDecision = "0"	20240919d49b0133ff32c839046eb68e3964b9c4wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ca-ac-b9-a0-0b-6c	20240919d49b0133ff32c839046eb68e3964b9c4wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EC30BDF3-C4DC-4075-A0A2-370429D0227C}\ca-ac-b9-a0-0b-6c	20240919d49b0133ff32c839046eb68e3964b9c4wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ca-ac-b9-a0-0b-6c\WpadDecisionReason = "1"	20240919d49b0133ff32c839046eb68e3964b9c4wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ca-ac-b9-a0-0b-6c\WpadDecisionTime = e087a8a9e00adb01	20240919d49b0133ff32c839046eb68e3964b9c4wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	20240919d49b0133ff32c839046eb68e3964b9c4wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	20240919d49b0133ff32c839046eb68e3964b9c4wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	20240919d49b0133ff32c839046eb68e3964b9c4wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	20240919d49b0133ff32c839046eb68e3964b9c4wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	20240919d49b0133ff32c839046eb68e3964b9c4wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EC30BDF3-C4DC-4075-A0A2-370429D0227C}\WpadNetworkName = "Network 3"	20240919d49b0133ff32c839046eb68e3964b9c4wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00f4000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	20240919d49b0133ff32c839046eb68e3964b9c4wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EC30BDF3-C4DC-4075-A0A2-370429D0227C}\WpadDecisionReason = "1"	20240919d49b0133ff32c839046eb68e3964b9c4wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	20240919d49b0133ff32c839046eb68e3964b9c4wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	20240919d49b0133ff32c839046eb68e3964b9c4wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	20240919d49b0133ff32c839046eb68e3964b9c4wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	20240919d49b0133ff32c839046eb68e3964b9c4wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	20240919d49b0133ff32c839046eb68e3964b9c4wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	20240919d49b0133ff32c839046eb68e3964b9c4wannacry.exe

C:\Users\Admin\AppData\Local\Temp\20240919d49b0133ff32c839046eb68e3964b9c4wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\20240919d49b0133ff32c839046eb68e3964b9c4wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1600
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2968

C:\Users\Admin\AppData\Local\Temp\20240919d49b0133ff32c839046eb68e3964b9c4wannacry.exe
C:\Users\Admin\AppData\Local\Temp\20240919d49b0133ff32c839046eb68e3964b9c4wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:536

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
69fa253911ff4509b0fac9a6196b6d6c

SHA1
326514f0734ffa20c07bad20582a0f3046f1cf97

SHA256
0a0857386684539ba55b0203b5b95b6be6ccce0d64fc27cad62ddbe694ec0596

SHA512
b83395b9e2c62206f57c5c59b9be3c941a193e519e1879dc8e7f7c8ebd9767df7aff3767fac4500a484f0fa1204c98686434a25f727bcc53eef783868423b92d

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Analysis

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