Post

Securinets Tekup mini-CTF:PCAP Master

Securinets Tekup mini-CTF:PCAP Master

TASK

Securinets

Netcat Questions

Q1:What’s the victim’s IP address?

Q2:What’s the victim’s MAC address?

Q3:What’s the attacker’s IP address?

Q4:What’s the attacker’s MAC address?

Q5:What’s the executable file name?

Q6:What’s the family name of this malware?

Solve

let’s open the file on Wireshark and start looking for suspicious activities First let’s see if there is any POST or GET request using this filter

1
http.request.method==GET or http.request.method==POST

Securinets

As we can see we have three GET requests one of them is for an executable file but first we need to confirm if this file is malicious we can export the file by clicking on file > Export Objects > HTTP > (choose putingods.exe) > Save After downloading the file we need to get it’s hash to look for it on virustotal

1
md5sum putingods.exe
1
991129c128ccee33d434849d79d28434  putingods.exe

Securinets

Now since we confirmed that this is the malicious file we are looking for we need to go back to wireshark to get the victim’s IP & MAC address and the attacker’s IP & MAC address

Securinets

Now we have all netcat answers except for the family name of the malware, we need to get back to virustotal to get it

Securinets

We can see the family name is RedLine and its a Trojan

Flag

Securinets

1
Securinets{Y0U_4R3_M4LW4R3_M4ST3R}
This post is licensed under CC BY 4.0 by the author.