wannacry | cdc4cb8fce90a9e9f0004919a752f4b512f2058d005ee981b13783ae0c1636ea

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
25-12-2024 09:47

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General

Target

2024-12-25_a81078deab5b86473f2f8a17bb8b8574_wannacry.exe
Size

3.6MB
MD5

a81078deab5b86473f2f8a17bb8b8574
SHA1

6ec265e0987d1a6add8a7736d81b3b1461d88237
SHA256

cdc4cb8fce90a9e9f0004919a752f4b512f2058d005ee981b13783ae0c1636ea
SHA512

b32ccc36039bb6d99bc87d28ae1706acab5ab583b83d14850c0402d5bdc8a852e8e5942fe02f7bf3d63702e5e16296c65e809043d32520d24ee4f6729bc64095
SSDEEP

98304:hWqPoBhz1aRxcSUDk36SAEdhvxWa9P593vHI:hWqPe1Cxcxk3ZAEUadzvHI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Wannacry family
wannacry
Contacts a large (3301) 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
4244	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	2024-12-25_a81078deab5b86473f2f8a17bb8b8574_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	2024-12-25_a81078deab5b86473f2f8a17bb8b8574_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-25_a81078deab5b86473f2f8a17bb8b8574_wannacry.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-12-25_a81078deab5b86473f2f8a17bb8b8574_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-12-25_a81078deab5b86473f2f8a17bb8b8574_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-12-25_a81078deab5b86473f2f8a17bb8b8574_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-12-25_a81078deab5b86473f2f8a17bb8b8574_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-12-25_a81078deab5b86473f2f8a17bb8b8574_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-25_a81078deab5b86473f2f8a17bb8b8574_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-25_a81078deab5b86473f2f8a17bb8b8574_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2808
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:4244

C:\Users\Admin\AppData\Local\Temp\2024-12-25_a81078deab5b86473f2f8a17bb8b8574_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-12-25_a81078deab5b86473f2f8a17bb8b8574_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:4328

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

T1046

System Location Discovery

T1614

System Language Discovery

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
09aaff56d827bfa667fff13e73a17ac0

SHA1
335a4796b61c3ec4aeb28d3c14b133067a2a5b57

SHA256
41b4ff07e06612e5b6885ff3efb4c03651e91c3c84494ac141f285519a215b14

SHA512
2afac87ccac9c32d21b26867d6182d24498845b840820d4b025fd21b9902b17abcb6d01c07aea668eacec0ea20cc09998fe41a58aaa364482c80866a4ea81a9b

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