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Wireshark PCAP Analysis

Find your IP address

- Look for 255.255.255.255 in the Destination IP and the Source IP is #Your IP > ip.dst_host == 255.255.255.255

Find your hostname

- Filter with dhcp and the src.ip is your IP > dhcp && ip.src_host == 192.168.110.130
- Look for Option 12 (hostname) in the DHCP section of the packet

Find your OS Info

- Filter with http and the src.ip is your IP > http && ip.src_host == 192.168.110.130
- look for User-Agent in the HTTP section of the packet

Find suspicious domains

- File >> Export Objects >> HTTP
- Find a suspicious IP
- Filter with ip.addr == 31.44.33.11

For UTC timestamps

- Right click on the Column Header "Time"
- Navigate to Column Preferences
- Change value for Time from "Time (format as specified)" to UTC Date and Time
- Report the time of initial traffic to our host    

Story Format

What, when, who, how, story

Story

A suspicious file named H7mp was downloaded onto our Windows NT 6.1 host “192.168.110.130” at 2019-10-12 15:02:45 UTC Time from a suspicious domain 31.44.33.11

Autopsy

Unzip 7zip files

p7zip -d filename.7z

Get OS Hostname

Results » Operating System Information

Volatility

Run imageinfo to retrieve information about the .vmem file

volatility -f filename.vmem imageinfo

Run psxview to return all the processes that are running in memory

volatility -f filename.vmem –profile=Win7SP1x64 psxview

Run the command that returns True for all rows

volatility -f filename.vmem –profile=Win7SP1x64 psscan

Add “> filename.log” to write the output as CSV file

volatility -f filename.vmem –profile=Win7SP1x64 psscan > psscan.log

Filter the output file for selective text i.e. process-id 1484

cat psscan.log grep

Add “> filename.csv>” to write the output as CSV file

volatility -f filename.vmem –profile=Win7SP1x64 psscan > psscan.csv

Open CSV file in Microsoft Excel

File > Data > Text to Columns > Delimited > Next > Space > Finish

Author: George Davis | Source: Personal writing | November 19th , 2019