wannacry | a1066ffbe40557b9d161ffdbbcd4231293a61243d248848f72a33895fb0a79e4

General

Target

2024-06-16_de32be01ef84f66bb097231ed1432453_wannacry.exe
Size

5.0MB
MD5

de32be01ef84f66bb097231ed1432453
SHA1

b6b79cbda0aa5c435efeaaf56534628ce383b7ef
SHA256

a1066ffbe40557b9d161ffdbbcd4231293a61243d248848f72a33895fb0a79e4
SHA512

15eb80f0040952bb20f5a9149441e20b2e82fd4e934c822366a9aa7ab5a831d021f5cd55bc4112cba28d2d857a2093ef70ae5080d37c8beca718c6c6620c3d8c
SSDEEP

12288:GvbLgPlu+QhMbaIMu7L5NVErCA4z2g6rTcbckPU82900Ve7zw+K+DHeQYSUj:2bLgddQhfdmMSirYbcMNgef0QeQ

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3229) 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

Processes:

tasksche.exe

pid process

2688 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

pid	process
2688	tasksche.exe

Drops file in System32 directory 1 IoCs

Processes:

2024-06-16_de32be01ef84f66bb097231ed1432453_wannacry.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2024-06-16_de32be01ef84f66bb097231ed1432453_wannacry.exe

Drops file in Windows directory 1 IoCs

Processes:

2024-06-16_de32be01ef84f66bb097231ed1432453_wannacry.exe

description ioc process

File created C:\WINDOWS\tasksche.exe 2024-06-16_de32be01ef84f66bb097231ed1432453_wannacry.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	2024-06-16_de32be01ef84f66bb097231ed1432453_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

Processes:

2024-06-16_de32be01ef84f66bb097231ed1432453_wannacry.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-06-16_de32be01ef84f66bb097231ed1432453_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0178000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-06-16_de32be01ef84f66bb097231ed1432453_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EAD4E167-ABEA-4D2B-9E44-E46E67700124}\WpadDecisionTime = 6007622ee4bfda01	2024-06-16_de32be01ef84f66bb097231ed1432453_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EAD4E167-ABEA-4D2B-9E44-E46E67700124}\82-26-e9-18-b0-ae	2024-06-16_de32be01ef84f66bb097231ed1432453_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\82-26-e9-18-b0-ae\WpadDecisionReason = "1"	2024-06-16_de32be01ef84f66bb097231ed1432453_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\82-26-e9-18-b0-ae\WpadDecisionTime = 6007622ee4bfda01	2024-06-16_de32be01ef84f66bb097231ed1432453_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-06-16_de32be01ef84f66bb097231ed1432453_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-06-16_de32be01ef84f66bb097231ed1432453_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-06-16_de32be01ef84f66bb097231ed1432453_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EAD4E167-ABEA-4D2B-9E44-E46E67700124}	2024-06-16_de32be01ef84f66bb097231ed1432453_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-06-16_de32be01ef84f66bb097231ed1432453_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-06-16_de32be01ef84f66bb097231ed1432453_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-06-16_de32be01ef84f66bb097231ed1432453_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-06-16_de32be01ef84f66bb097231ed1432453_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-06-16_de32be01ef84f66bb097231ed1432453_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-06-16_de32be01ef84f66bb097231ed1432453_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EAD4E167-ABEA-4D2B-9E44-E46E67700124}\WpadDecisionReason = "1"	2024-06-16_de32be01ef84f66bb097231ed1432453_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\82-26-e9-18-b0-ae	2024-06-16_de32be01ef84f66bb097231ed1432453_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-06-16_de32be01ef84f66bb097231ed1432453_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-06-16_de32be01ef84f66bb097231ed1432453_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\82-26-e9-18-b0-ae\WpadDecision = "0"	2024-06-16_de32be01ef84f66bb097231ed1432453_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EAD4E167-ABEA-4D2B-9E44-E46E67700124}\WpadNetworkName = "Network 3"	2024-06-16_de32be01ef84f66bb097231ed1432453_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-06-16_de32be01ef84f66bb097231ed1432453_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EAD4E167-ABEA-4D2B-9E44-E46E67700124}\WpadDecision = "0"	2024-06-16_de32be01ef84f66bb097231ed1432453_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-06-16_de32be01ef84f66bb097231ed1432453_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-16_de32be01ef84f66bb097231ed1432453_wannacry.exe"
1⤵
- Drops file in Windows directory
PID:772

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
2⤵
- Executes dropped EXE
PID:2688

C:\Users\Admin\AppData\Local\Temp\2024-06-16_de32be01ef84f66bb097231ed1432453_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-06-16_de32be01ef84f66bb097231ed1432453_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2740

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
bc50db21a9e2fcb4d251e5778d9d5633

SHA1
0dd4d07ab8e0917123908b1f12c253445084ccd1

SHA256
ddf35ab81a6bc84b11ebf2e59b6dd122e36a87e2aef65f46727257fab06d561b

SHA512
f346c96ec152c226970abd97db55585af5669754e7692cd8d7a06885c93817b8d40d2305d1d1f4698a2d0db8a673cc3afb0d1d377ef725945f6fcdb882e76f36

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