wannacry | b63dc254747411d06eba34643943a32b0fe5feaca4163601cd0e1e3adcbd7b02

Analysis

max time kernel
150s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20240910-en
resource tags

arch:x64arch:x86image:win10v2004-20240910-enlocale:en-usos:windows10-2004-x64system
submitted
21-09-2024 16:37

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General

Target

20240921b95243220aa617693473607bc19abb96wannacry.exe
Size

5.0MB
MD5

b95243220aa617693473607bc19abb96
SHA1

76b44dcd892631abf333f2af974e31050904c5d1
SHA256

b63dc254747411d06eba34643943a32b0fe5feaca4163601cd0e1e3adcbd7b02
SHA512

f502eb2e4a09cb553006acc011ed608a4bdeb3adacf588ffec1d09657404a430de20dff54751013b4e38422dfa0655a635adef4d38ea97a78c936f40b0c9773d
SSDEEP

98304:yDqPolz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2H:yDqPw1Cxcxk3ZAEUadzR8yc4H

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3107) 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
2848	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	20240921b95243220aa617693473607bc19abb96wannacry.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	20240921b95243220aa617693473607bc19abb96wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	20240921b95243220aa617693473607bc19abb96wannacry.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"	20240921b95243220aa617693473607bc19abb96wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	20240921b95243220aa617693473607bc19abb96wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	20240921b95243220aa617693473607bc19abb96wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	20240921b95243220aa617693473607bc19abb96wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	20240921b95243220aa617693473607bc19abb96wannacry.exe

C:\Users\Admin\AppData\Local\Temp\20240921b95243220aa617693473607bc19abb96wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\20240921b95243220aa617693473607bc19abb96wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1480
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2848

C:\Users\Admin\AppData\Local\Temp\20240921b95243220aa617693473607bc19abb96wannacry.exe
C:\Users\Admin\AppData\Local\Temp\20240921b95243220aa617693473607bc19abb96wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:3092

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
78c4027e3434e7eb99f0283d50ba84c9

SHA1
433b861ecfba384a44e5cb8674800b5c50524e9c

SHA256
ecf72a26bbb96a8fe305a049ed53d913fc33b84a6ab52dda5478037994dcc75d

SHA512
8fa7c3d0f53d924ae22a7bc497f821acde54407095afdfa02b750020e2fb9677cbcedda116aab8b9eb89cfa99bb7ddd6a4f5b33eef6d34507ee73900c236c27b

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