wannacry | 18ef00980c8ba3d354695b81e823b6dbe400ce017ae381107bd3824e54990253

General

Target

2024-09-26_50da0f64d895b4555e668c1362df946f_wannacry.exe
Size

5.0MB
MD5

50da0f64d895b4555e668c1362df946f
SHA1

bd74958ec93029ecfcca361f3ca8110b37915712
SHA256

18ef00980c8ba3d354695b81e823b6dbe400ce017ae381107bd3824e54990253
SHA512

7f6a19281c4fa9830c26ef8d6b4f6dfbd9534c41988b3e462fb7ad2ed2329c17596c990ac254ec1e3e03f56f88c819fb41b48b9d2c7d546bb7c5ddea139e8cf3
SSDEEP

12288:GvbLgPlu+QhMbaIMu7L5NVErCA4z2g6rTcbckPU82900Ve7Tw+K+DHeQYSUjEXFh:2bLgddQhfdmMSirYbcMNgef0QeQjG

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3345) 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
1240	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	2024-09-26_50da0f64d895b4555e668c1362df946f_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-26_50da0f64d895b4555e668c1362df946f_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	2024-09-26_50da0f64d895b4555e668c1362df946f_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-26_50da0f64d895b4555e668c1362df946f_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-09-26_50da0f64d895b4555e668c1362df946f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-09-26_50da0f64d895b4555e668c1362df946f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{93D38A56-2732-4B8F-8D5D-33ADC4F8F8F3}\WpadDecision = "0"	2024-09-26_50da0f64d895b4555e668c1362df946f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5e-44-fd-56-96-b1\WpadDecisionReason = "1"	2024-09-26_50da0f64d895b4555e668c1362df946f_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-26_50da0f64d895b4555e668c1362df946f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-09-26_50da0f64d895b4555e668c1362df946f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-09-26_50da0f64d895b4555e668c1362df946f_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-09-26_50da0f64d895b4555e668c1362df946f_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-09-26_50da0f64d895b4555e668c1362df946f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5e-44-fd-56-96-b1	2024-09-26_50da0f64d895b4555e668c1362df946f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{93D38A56-2732-4B8F-8D5D-33ADC4F8F8F3}\5e-44-fd-56-96-b1	2024-09-26_50da0f64d895b4555e668c1362df946f_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-26_50da0f64d895b4555e668c1362df946f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-26_50da0f64d895b4555e668c1362df946f_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{93D38A56-2732-4B8F-8D5D-33ADC4F8F8F3}\WpadNetworkName = "Network 3"	2024-09-26_50da0f64d895b4555e668c1362df946f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5e-44-fd-56-96-b1\WpadDecision = "0"	2024-09-26_50da0f64d895b4555e668c1362df946f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-26_50da0f64d895b4555e668c1362df946f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{93D38A56-2732-4B8F-8D5D-33ADC4F8F8F3}	2024-09-26_50da0f64d895b4555e668c1362df946f_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-09-26_50da0f64d895b4555e668c1362df946f_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00b9000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-26_50da0f64d895b4555e668c1362df946f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{93D38A56-2732-4B8F-8D5D-33ADC4F8F8F3}\WpadDecisionReason = "1"	2024-09-26_50da0f64d895b4555e668c1362df946f_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{93D38A56-2732-4B8F-8D5D-33ADC4F8F8F3}\WpadDecisionTime = a0e9bba4fb0fdb01	2024-09-26_50da0f64d895b4555e668c1362df946f_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5e-44-fd-56-96-b1\WpadDecisionTime = a0e9bba4fb0fdb01	2024-09-26_50da0f64d895b4555e668c1362df946f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-26_50da0f64d895b4555e668c1362df946f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-09-26_50da0f64d895b4555e668c1362df946f_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-26_50da0f64d895b4555e668c1362df946f_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-26_50da0f64d895b4555e668c1362df946f_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2440
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1240

C:\Users\Admin\AppData\Local\Temp\2024-09-26_50da0f64d895b4555e668c1362df946f_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-26_50da0f64d895b4555e668c1362df946f_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2016

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
0780b9abd0feef95f6356458a69df064

SHA1
7981ef3edefeafbdffd64d7a28bd9099e355cc62

SHA256
ea6f9ad5d5149a61b43e5cfc81dfdbeafebd88052670c0767ef3091d08143fa7

SHA512
c826d0f1f14b64ea7407a21f414fdfb3aaeca75db3d445b5388f41c09d424cb6741aa5127bad69b049d77fe8cfd0d613b0166ca20f25d74f7602a9fea7f9572f

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Analysis

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