Tag: Malvertising
Dreambot Dropped by HookAds
This will be a quick post as I just wanted to put out some updated IOCs. “popunder.php” from the HookAds decoy site: balkali[.]info/banners/countryhits: HookAds is still pushing Dreambot via RIG EK. Network Based IOCs HTTP: 80.77.82.41 – balkali.info – GET /banners/countryhits – HookAds server 188.225.33.164 – IP-literal hostname used by RIG EK 104.223.89.174 – GET ...
The Seamless Campaign Drops Ramnit. Follow-up Malware: AZORult Stealer, Smoke Loader, etc.
Although there continues to be an overall decrease in EK activity I’m still seeing a decent amount of malvertising leading to EKs. One campaign that I run into a lot is Seamless. It’s like other malvertising campaigns in that much of the traffic originates from streaming video sites. These kinds of sites make good targets ...
HookAds Continues to use RIG EK to Drop Dreambot
A couple days ago RIG changed its URI parameters. This isn’t unusual as it seems to happen at least once a month. However, one thing to note is that RIG, at this moment, is using some base64 encoded strings in the URI. Examples taken from this infection chain include the following: /?MzQwNDg3NTE= decodes to /?34048751= /?MTU2NzMzOTY= ...
Seamless Campaign Drops Ramnit from RIG Exploit Kit at 188.225.76.204
This infection chain started from a malvertising chain that eventually led to the Seamless campaign. Background on the Seamless campaign can be found HERE. Below is an image of the HTTP traffic from the infection chain: The malvertising chain used various redirects to reach the RIG EK landing page. Below is an image of the ...
Seamless Campaign Leads to RIG EK at 188.225.79.43 and Drops Ramnit
As I was checking logs in the SIEM console over the weekend I came across another detection for the Seamless campaign. You can see from the HTTP logs that there are two direct IPs, 194.58.60.51 and 194.58.60.52, being used by the Seamless campaign. Examining the URLs in the HTTP logs shows an interesting base64 encoded string: ...
Malvertising Leads to HookAds Campaign Which Redirects to RIG EK at 188.225.74.13. RIG EK Drops Dreambot.
I captured another malvertising chain that included the HookAds campaign. To read more about the HookAds campaign click HERE. You can also find all my HookAds related post HERE. Below is an image of a 302 redirect that led to the HookAds decoy XXX website: The referer for the decoy XXX website, according to the ...
Seamless Campaign Leads to RIG EK at 92.222.48.83 and Drops Ramnit
The infection vector for this Ramnit compromise was RIG exploit kit. The user was redirected to the exploit kit via a malvertising chain using the Seamless campaign. The Seamless campaign has been dropping Ramnit for awhile now. You can read more about the Seamless campaign HERE. The referer used for this infection was the Seamless ...
HookAds Campaign Leads to RIG EK at 188.225.78.240. RIG EK Drops Dreambot.
Network based IOCs 34.193.201.92 – arrassley.info – RoughTed domain 80.77.82.41 – heydrid-info – HookAds fake ad server 188.225.78.240 – RIG exploit kit 144.168.45.110 – Dreambot C2 52.2.59.254 – ipinfo.io – External IP lookup Post-infection DNS queries and additional post-infection traffic: resolver1.opendns.com 222.222.67.208.in-addr.arpa myip.opendns.com wdwefwefwwfewdefewfwefw.onion Hashes SHA256: ab4db9eff5259f56e1c9f21444b9b8024d8ce2ffc841e178b10b9a522a750c3c File name: heydrid.info pre-landing page.txt SHA256: b712653deece760b1b981c7d93da44e62b58630ce0bfd511a2d621672cc2f7d6 File ...
“Despicable” Malvertising Campaign Redirects to RIG EK at 188.225.77.106, Drops Chthonic Banking Trojan.
Read about the Despicable (aka Despicable .ME) malvertising campaign HERE. This infection chain resulted from me visiting a website that streams sporting events. Below is a partial and edited image of the malvertising chain being filtered in Wireshark: The host is redirected to adrunnr.com, which then redirects to done.witchcraftcash.com. done.witchcraftcash.com then redirects the host to the ...
“Despicable” Malvertising Campaign
Myself and a couple other coworkers stumbled across a malvertising campaign that I’ve playfully dubbed “Despicable” for its heavy use of the .ME TLD. So far, I haven’t found any public documentation about this campaign. Having said that, I wouldn’t be surprised if it was currently on other people’s radars. Background into the campaign Research ...
Malware breakdown 