Actually solved this challenge without going down any rabbitholes, mostly due to the fact of my very handy volatility cheatsheet (find it in the cheatsheet folder)
Started off by identifying the OS version with volatility -f raretowin.raw imageinfo and as such got Win7SP1x64 as result.
Next step was to look for suspicious or malicious proccesses 'volatility -f raretowin.raw --profile Win7SP1x64 pstree > pstree'.
Name Pid PPid Thds Hnds Time
-------------------------------------------------- ------ ------ ------ ------ ----
0xfffffa8002414290:explorer.exe 1448 1420 33 931 2019-03-23 20:42:39 UTC+0000
. 0xfffffa8002521180:VBoxTray.exe 1792 1448 13 149 2019-03-23 20:42:39 UTC+0000
. 0xfffffa80007b4060:DumpIt.exe 2464 1448 2 45 2019-03-23 20:47:45 UTC+0000
0xfffffa8001743670:chrome.exe 2912 2756 43 1020 2019-03-23 20:45:11 UTC+0000
. 0xfffffa80024e9060:chrome.exe 2656 2912 2 58 2019-03-23 20:45:13 UTC+0000
. 0xfffffa8000e5e060:chrome.exe 2652 2912 9 166 2019-03-23 20:45:23 UTC+0000
. 0xfffffa8000e34060:chrome.exe 2972 2912 15 233 2019-03-23 20:45:37 UTC+0000
. 0xfffffa8001ae8b30:chrome.exe 1220 2912 0 ------ 2019-03-23 20:46:22 UTC+0000
. 0xfffffa8000f16060:chrome.exe 1096 2912 14 174 2019-03-23 20:47:31 UTC+0000
. 0xfffffa80007c5b30:chrome.exe 2908 2912 0 ------ 2019-03-23 20:46:50 UTC+0000
. 0xfffffa80007bdb30:chrome.exe 2744 2912 8 86 2019-03-23 20:45:11 UTC+0000
. 0xfffffa8000e712f0:chrome.exe 2704 2912 0 ------ 2019-03-23 20:46:50 UTC+0000
. 0xfffffa80018d87a0:chrome.exe 2792 2912 0 ------ 2019-03-23 20:47:12 UTC+0000
. 0xfffffa8000e03060:chrome.exe 2224 2912 15 177 2019-03-23 20:47:31 UTC+0000
. 0xfffffa80023e3400:chrome.exe 1248 2912 15 192 2019-03-23 20:46:26 UTC+0000
. 0xfffffa8000e51b30:chrome.exe 1704 2912 0 ------ 2019-03-23 20:47:08 UTC+0000
. 0xfffffa8000e7b060:chrome.exe 2740 2912 0 ------ 2019-03-23 20:46:59 UTC+0000
0xfffffa80006a3670:wininit.exe 388 332 3 74 2019-03-23 20:42:36 UTC+0000
. 0xfffffa8002046b30:services.exe 484 388 9 188 2019-03-23 20:42:36 UTC+0000
...
Nothing seemed suspicious, but this did tell me that the user used Chrome and not IE or firefox (!) as browser.
Thus i loaded up superponible plugins to search for chromehistory volatility --plugins=../volatility-plugins/ chromehistory -f raretowin.raw --profile Win7SP1x64 > chromehistory
Index URL Title Visits Typed Last Visit Time Hidden Favicon ID
------ -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- ------ ----- -------------------------- ------ ----------
5 https://www.google.com/search?ei=E5uWXJ.......1..gws-wiz.......33i10.1d1MmLHudn8 music macklemore & ryan lewis download - بحث Google 1 0 2019-03-23 20:46:19.759382 N/A
4 https://www.google.com/search?ei=C5uWXL...-wiz.......0i7i30j0i8i7i30.o2tBk6J7PNY music macklemore & ryan lewis - بحث Google 1 0 2019-03-23 20:46:14.328534 N/A
3 https://www.google.com/search?source=hp....gws-wiz.....0..0i131j0i10.ZF1jOaSrzUQ macklemore & ryan lewis - بحث Google 1 0 2019-03-23 20:46:06.948223 N/A
2 https://www.google.com/ Google 1 1 2019-03-23 20:45:46.371044 N/A
6 https://www.google.tn/_/chro� 1 1 1601-01-01 00:00:00 N/A
9 https://www.mediafire.com/file/2t7bb2mflg2lwwj/music.rar/file# music 2 0 2019-03-23 20:47:28.109720 N/A
8 https://www.mediafire.com/file/2t7bb2mflg2lwwj/music.rar/file#! music 2 0 2019-03-23 20:46:41.978975 N/A
7 https://www.mediafire.com/file/2t7bb2mflg2lwwj/music.rar/file music 3 0 2019-03-23 20:46:41.978975 N/A
6 https://www.google.tn/_/chrome/newtab?ie=UTF-8 1 1 2019-03-23 20:46:27.270709 N/A
1 http://www.google.com/ Google 1 0 2019-03-23 20:45:46.371044 N/A
This revealed only a handful of searches, including some suspicious ones, namely the one from mediafire. I downloaded the rar file in my VM, and immediately saw that this was not a zip.
Using strings on the file i noticed an ELF file within the file, and a suspicious directory within this ELF C:\\Users\Public\Data\firefox.exe
Flag
Converting the path to C:\\Users\\Public\\Data\\firefox.exe and taking the MD5 sum of it gives us the flag.
Securinets{9c2623856856ce8aa830a5feb0e4910d}