wannacry | f39d991c26fe60fa93645546da9534a85afdb757a6d796f83b4a6c51daf3d92e

Analysis

max time kernel
151s
max time network
161s
platform
windows10-2004_x64
resource
win10v2004-20231023-en
resource tags

arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
submitted
23-10-2023 18:33

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General

Target

NEAS.2d8223b0cc7eb09f4db52e268a0fe380_JC.exe
Size

5.0MB
MD5

2d8223b0cc7eb09f4db52e268a0fe380
SHA1

eb662a17a4590ad8c3f94ed599a2c67a9c4c271e
SHA256

f39d991c26fe60fa93645546da9534a85afdb757a6d796f83b4a6c51daf3d92e
SHA512

0a4b4c6898f2674440f381113214b20b8663fa22ecb80bf0bedddb1707bde88202f20d708f9af375597993f4f27dc31f2c0ec6311507baab130ecbdce904f54f
SSDEEP

12288:GvbLgPlu+QhMbaIMu7L5NVErCA4z2g6rTcbckPU82900Ve7zw+K+DHeQYSUjEXFp:2bLgddQhfdmMSirYbcMNgef0QeQjG

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3218) 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
3620	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 Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	NEAS.2d8223b0cc7eb09f4db52e268a0fe380_JC.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	NEAS.2d8223b0cc7eb09f4db52e268a0fe380_JC.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	NEAS.2d8223b0cc7eb09f4db52e268a0fe380_JC.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	NEAS.2d8223b0cc7eb09f4db52e268a0fe380_JC.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	NEAS.2d8223b0cc7eb09f4db52e268a0fe380_JC.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	NEAS.2d8223b0cc7eb09f4db52e268a0fe380_JC.exe

C:\Users\Admin\AppData\Local\Temp\NEAS.2d8223b0cc7eb09f4db52e268a0fe380_JC.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.2d8223b0cc7eb09f4db52e268a0fe380_JC.exe"
1⤵
- Drops file in Windows directory
PID:4120
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:3620

C:\Users\Admin\AppData\Local\Temp\NEAS.2d8223b0cc7eb09f4db52e268a0fe380_JC.exe
C:\Users\Admin\AppData\Local\Temp\NEAS.2d8223b0cc7eb09f4db52e268a0fe380_JC.exe -m security
1⤵
- Modifies data under HKEY_USERS
PID:820

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

T1046

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
f9d81cf0f3d228198cdbf24a8f186fb2

SHA1
22ea321e66a49992cb530211401134881bf74a7e

SHA256
1fa060c33dd7a62ea8a832c4f4c2b69cbf27e495121b3baa9eaf821967ef2b6a

SHA512
c115ba3151ee6611ccbf43d6fb82bec662c94e4991400ed9f9dc3dd375f0d48862747a4e46380cd2bb28e231443d611031e24add981afeac7c1eb54e40e730fa

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