wannacry | aad3fcc0a23f99efce31e622924906021757d04778cb68f0237220a5b17af51f

General

Target

2024-07-23_8eb0978df1d320bb715088e81e399dc8_wannacry.exe
Size

5.0MB
MD5

8eb0978df1d320bb715088e81e399dc8
SHA1

5211b1590537af1faffeb035e57066ab77de9bc1
SHA256

aad3fcc0a23f99efce31e622924906021757d04778cb68f0237220a5b17af51f
SHA512

373bfd3f9c8a84fe61146a397dfcb9ee6ead5b71085441417aaf2c4742aba2d78a8c924c985875088d80b77a75276f3a824cbad3b20ea08f68ab7ed77914e2f0
SSDEEP

12288:GebLgPlu+QhMbaIMu7L5NVErCA4z2g6rTcbckPU82900Ve7zw+K+DHeQYSUjEXFp:XbLgddQhfdmMSirYbcMNgef0QeQjG

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3268) 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

1792 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
1792	tasksche.exe

Drops file in System32 directory 1 IoCs

Processes:

2024-07-23_8eb0978df1d320bb715088e81e399dc8_wannacry.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2024-07-23_8eb0978df1d320bb715088e81e399dc8_wannacry.exe

Drops file in Windows directory 1 IoCs

Processes:

2024-07-23_8eb0978df1d320bb715088e81e399dc8_wannacry.exe

description ioc process

File created C:\WINDOWS\tasksche.exe 2024-07-23_8eb0978df1d320bb715088e81e399dc8_wannacry.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	2024-07-23_8eb0978df1d320bb715088e81e399dc8_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

Processes:

2024-07-23_8eb0978df1d320bb715088e81e399dc8_wannacry.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\46-bd-69-fe-4b-53	2024-07-23_8eb0978df1d320bb715088e81e399dc8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\46-bd-69-fe-4b-53\WpadDecisionReason = "1"	2024-07-23_8eb0978df1d320bb715088e81e399dc8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-07-23_8eb0978df1d320bb715088e81e399dc8_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4C3FF418-ACF9-4D11-B32C-198C44705BF7}\WpadDecisionTime = a0a80ea7fcdcda01	2024-07-23_8eb0978df1d320bb715088e81e399dc8_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4C3FF418-ACF9-4D11-B32C-198C44705BF7}\WpadNetworkName = "Network 3"	2024-07-23_8eb0978df1d320bb715088e81e399dc8_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-07-23_8eb0978df1d320bb715088e81e399dc8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-07-23_8eb0978df1d320bb715088e81e399dc8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4C3FF418-ACF9-4D11-B32C-198C44705BF7}\WpadDecisionReason = "1"	2024-07-23_8eb0978df1d320bb715088e81e399dc8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4C3FF418-ACF9-4D11-B32C-198C44705BF7}\WpadDecision = "0"	2024-07-23_8eb0978df1d320bb715088e81e399dc8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-07-23_8eb0978df1d320bb715088e81e399dc8_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-07-23_8eb0978df1d320bb715088e81e399dc8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-07-23_8eb0978df1d320bb715088e81e399dc8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-07-23_8eb0978df1d320bb715088e81e399dc8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-07-23_8eb0978df1d320bb715088e81e399dc8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4C3FF418-ACF9-4D11-B32C-198C44705BF7}	2024-07-23_8eb0978df1d320bb715088e81e399dc8_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\46-bd-69-fe-4b-53\WpadDecisionTime = a0a80ea7fcdcda01	2024-07-23_8eb0978df1d320bb715088e81e399dc8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\46-bd-69-fe-4b-53\WpadDecision = "0"	2024-07-23_8eb0978df1d320bb715088e81e399dc8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-07-23_8eb0978df1d320bb715088e81e399dc8_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-07-23_8eb0978df1d320bb715088e81e399dc8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-07-23_8eb0978df1d320bb715088e81e399dc8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4C3FF418-ACF9-4D11-B32C-198C44705BF7}\46-bd-69-fe-4b-53	2024-07-23_8eb0978df1d320bb715088e81e399dc8_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-07-23_8eb0978df1d320bb715088e81e399dc8_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-07-23_8eb0978df1d320bb715088e81e399dc8_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00b4000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-07-23_8eb0978df1d320bb715088e81e399dc8_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-07-23_8eb0978df1d320bb715088e81e399dc8_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-23_8eb0978df1d320bb715088e81e399dc8_wannacry.exe"
1⤵
- Drops file in Windows directory
PID:2884

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
2⤵
- Executes dropped EXE
PID:1792

C:\Users\Admin\AppData\Local\Temp\2024-07-23_8eb0978df1d320bb715088e81e399dc8_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-07-23_8eb0978df1d320bb715088e81e399dc8_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2900

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
578715a94d05e7cf7735c950718785c9

SHA1
c32a98aa04d1c74bf3edc95489345700fc9630b7

SHA256
60473c983b0e8b6a43acc4278b8e9d1722d18795f6e23747d606daab476ecd0b

SHA512
bc2ab69f933ecfe1cc78dbcfcea21a0110eb619213eecfe31485a9c1c45df327f025c14068d190ddfb195053abfeae4c2889dc84cf6cc9144b04628558b80c55

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