wannacry | c9b2bec1243391f0e37dcc44cc7b725aba495b954b3876e3395d3ae2d8faec2d

General

Target

2024-07-09_ef0564bc53e8694a433d7c773fb11f1d_wannacry.exe
Size

5.0MB
MD5

ef0564bc53e8694a433d7c773fb11f1d
SHA1

f02a3250e23287312a3ddb5a1f2e605979ee5575
SHA256

c9b2bec1243391f0e37dcc44cc7b725aba495b954b3876e3395d3ae2d8faec2d
SHA512

ad7cf4dd221b46d129463d35442a9a99942304370bcd812f766d25cab83743658142edfaec5f186d8e2ab00c033af9f638d5ec1f0fe6de8036dbd2529de5331f
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAV:yDqPe1Cxcxk3ZAEUadzR8yc

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3349) 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

2112 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
2112	tasksche.exe

Drops file in System32 directory 1 IoCs

Processes:

2024-07-09_ef0564bc53e8694a433d7c773fb11f1d_wannacry.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2024-07-09_ef0564bc53e8694a433d7c773fb11f1d_wannacry.exe

Drops file in Windows directory 1 IoCs

Processes:

2024-07-09_ef0564bc53e8694a433d7c773fb11f1d_wannacry.exe

description ioc process

File created C:\WINDOWS\tasksche.exe 2024-07-09_ef0564bc53e8694a433d7c773fb11f1d_wannacry.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	2024-07-09_ef0564bc53e8694a433d7c773fb11f1d_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

Processes:

2024-07-09_ef0564bc53e8694a433d7c773fb11f1d_wannacry.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-07-09_ef0564bc53e8694a433d7c773fb11f1d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-07-09_ef0564bc53e8694a433d7c773fb11f1d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\da-b6-48-d7-c5-cb\WpadDecisionTime = 4015c66af8d1da01	2024-07-09_ef0564bc53e8694a433d7c773fb11f1d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-07-09_ef0564bc53e8694a433d7c773fb11f1d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-07-09_ef0564bc53e8694a433d7c773fb11f1d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-07-09_ef0564bc53e8694a433d7c773fb11f1d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-07-09_ef0564bc53e8694a433d7c773fb11f1d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-07-09_ef0564bc53e8694a433d7c773fb11f1d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0094000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-07-09_ef0564bc53e8694a433d7c773fb11f1d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2A289AF1-B380-491D-BAF1-C7EE3A90ABE5}\WpadDecisionReason = "1"	2024-07-09_ef0564bc53e8694a433d7c773fb11f1d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2A289AF1-B380-491D-BAF1-C7EE3A90ABE5}\WpadNetworkName = "Network 3"	2024-07-09_ef0564bc53e8694a433d7c773fb11f1d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-07-09_ef0564bc53e8694a433d7c773fb11f1d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\da-b6-48-d7-c5-cb\WpadDecisionReason = "1"	2024-07-09_ef0564bc53e8694a433d7c773fb11f1d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2A289AF1-B380-491D-BAF1-C7EE3A90ABE5}\WpadDecision = "0"	2024-07-09_ef0564bc53e8694a433d7c773fb11f1d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2A289AF1-B380-491D-BAF1-C7EE3A90ABE5}\da-b6-48-d7-c5-cb	2024-07-09_ef0564bc53e8694a433d7c773fb11f1d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-07-09_ef0564bc53e8694a433d7c773fb11f1d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-07-09_ef0564bc53e8694a433d7c773fb11f1d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-07-09_ef0564bc53e8694a433d7c773fb11f1d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-07-09_ef0564bc53e8694a433d7c773fb11f1d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2A289AF1-B380-491D-BAF1-C7EE3A90ABE5}	2024-07-09_ef0564bc53e8694a433d7c773fb11f1d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2A289AF1-B380-491D-BAF1-C7EE3A90ABE5}\WpadDecisionTime = 4015c66af8d1da01	2024-07-09_ef0564bc53e8694a433d7c773fb11f1d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\da-b6-48-d7-c5-cb	2024-07-09_ef0564bc53e8694a433d7c773fb11f1d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\da-b6-48-d7-c5-cb\WpadDecision = "0"	2024-07-09_ef0564bc53e8694a433d7c773fb11f1d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-07-09_ef0564bc53e8694a433d7c773fb11f1d_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-07-09_ef0564bc53e8694a433d7c773fb11f1d_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-09_ef0564bc53e8694a433d7c773fb11f1d_wannacry.exe"
1⤵
- Drops file in Windows directory
PID:2084

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
2⤵
- Executes dropped EXE
PID:2112

C:\Users\Admin\AppData\Local\Temp\2024-07-09_ef0564bc53e8694a433d7c773fb11f1d_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-07-09_ef0564bc53e8694a433d7c773fb11f1d_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2380

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
5cad34d619855241557ec625ae46cfab

SHA1
a6d33d4c0cc6c4233c181346a52db27194a41e4e

SHA256
b5a1377a82b1a6dd922c1da9b1797897daf3b9044d2495bad4e8b8a32a47bf93

SHA512
16b32857173aa4b26a701e2499a8f3149e35b8853815d2098137745370abe1a3aa01b2487bd293315bb063c9c17663e09908fa49d9f41f6d959b52074e1b658d

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