wannacry | a1f732fa45e4a5b3c27dab1b8c39ac95b9c64794e18db0c3bbdeb208d9bca53a

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
28-09-2024 00:35

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General

Target

20240927b9b8074ca24b54eb9ad88c0a939c0eccwannacry.exe
Size

3.6MB
MD5

b9b8074ca24b54eb9ad88c0a939c0ecc
SHA1

aec350e044dd7ff287686e2a345038aa0d727fa2
SHA256

a1f732fa45e4a5b3c27dab1b8c39ac95b9c64794e18db0c3bbdeb208d9bca53a
SHA512

46119ddb0d03a190bc75b725b1cd16bf8e64392d63f627dac912a5208e83a7ebbf841e3c5c34e2f80e5af7af91a515fc8cf90264d18a4e4c494e7e8739c066e2
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhexWa9P593R8yAVp2HI:yDqPe1Cxcxk3ZAEdadzR8yc4HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3306) 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
4324	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	20240927b9b8074ca24b54eb9ad88c0a939c0eccwannacry.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	20240927b9b8074ca24b54eb9ad88c0a939c0eccwannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	20240927b9b8074ca24b54eb9ad88c0a939c0eccwannacry.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	20240927b9b8074ca24b54eb9ad88c0a939c0eccwannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	20240927b9b8074ca24b54eb9ad88c0a939c0eccwannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	20240927b9b8074ca24b54eb9ad88c0a939c0eccwannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	20240927b9b8074ca24b54eb9ad88c0a939c0eccwannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	20240927b9b8074ca24b54eb9ad88c0a939c0eccwannacry.exe

C:\Users\Admin\AppData\Local\Temp\20240927b9b8074ca24b54eb9ad88c0a939c0eccwannacry.exe
"C:\Users\Admin\AppData\Local\Temp\20240927b9b8074ca24b54eb9ad88c0a939c0eccwannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:3416
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:4324

C:\Users\Admin\AppData\Local\Temp\20240927b9b8074ca24b54eb9ad88c0a939c0eccwannacry.exe
C:\Users\Admin\AppData\Local\Temp\20240927b9b8074ca24b54eb9ad88c0a939c0eccwannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:4836

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
346be541c6610dfccd49dd497dc860f9

SHA1
5871801daf2aab9ed2f4edd90558d6e63fea9c99

SHA256
5b87ff79fb78b345b3ab2854ac5afd83b02a98c5ec087ad64c56510c368d7535

SHA512
1274bfbed7fd5a7cde239e06ef5b5b95ee17ba5f2a64b9d37a3025c1805f71247f9c13739ff60846da9edd2aca429c8f01f2e8225ca32da61e8d8e4369d08c04

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