Malware-Traffic-Analysis.net - 2018-02-13 - Hancitor malspam

2018-02-13 - HANCITOR MALSPAM - FAKE QUILL.COM CREDIT CARD CHARGE

ASSOCIATED FILES:

2018-02-13-Hancitor-malspam-infection-traffic.pcap (803,943 bytes)

2018-02-13-Hancitor-malspam-8-email-examples.txt (11,119 bytes)

2018-02-13-Hancitor-maldoc-invoice_325399.doc (311,296 bytes)

2018-02-13-Zeus-Panda-Banker.exe (126,976 bytes)

NOTES:

I saw someone say this campaign may now be using domain shadowing, but I don't think that's the case.
Two of the domains to retrieve Pony, Evil Pony, and Zeus Panda Banker start with a "mail." prefix, but they still use the same IP addresses as their associated web sites.
From what I understand, domain shadowing is a way to use valid domains for malicious servers hosted on other IP addresses.
These web servers are still compromised. Take away the "mail." prefix, and the URLs still retrieve malware from the compromised web sites.

Indicators are not a block list. If you feel the need to block web traffic, I suggest the following domains and URLs:

Shown above: Screenshot from one of the emails.

EMAIL HEADERS:

Received: from quil1.com ([50.252.95.129])
Received: from quil1.com ([70.55.226.153])
Received: from quil1.com ([75.110.186.234])
Received: from quil1.com ([96.61.127.2])
Received: from quil1.com ([96.68.44.105])
Received: from quil1.com ([206.40.111.53])
Received: from quil1.com ([207.201.210.82])
Received: from quil1.com ([216.218.189.211])

Shown above: Malicious Word document downloaded from a link in the malspam.

Shown above: Traffic from an infection filtered in Wireshark.

LINKS IN THE EMAILS TO THE WORD DOCUMENT:

hxxp://contactworks.biz?[string of characters]=[encoded string representing recipient's email address]
hxxp://MYNEXGREEN.COM?[string of characters]=[encoded string representing recipient's email address]
hxxp://nexgreen.net?[string of characters]=[encoded string representing recipient's email address]
hxxp://sultenworks.com?[string of characters]=[encoded string representing recipient's email address]
hxxp://trentoncable.net?[string of characters]=[encoded string representing recipient's email address]

NETWORK TRAFFIC FROM MY INFECTED LAB HOST:

92.53.77.166 port 80 - nexgreen.net - GET /?[string of characters]=[encoded string that includes info on recipient's email address]
api.ipify.org - GET /
185.36.102.227 port 80 - thattahitin.com - POST /ls5/forum.php
185.36.102.227 port 80 - thattahitin.com - POST /mlu/forum.php
185.36.102.227 port 80 - thattahitin.com - POST /d2/about.php
173.254.71.118 port 80 - mail.bestnewantiwrinklecream.com - GET /wp-content/plugins/jetpack/modules/1
173.254.71.118 port 80 - mail.bestnewantiwrinklecream.com - GET /wp-content/plugins/jetpack/modules/2
173.254.71.118 port 80 - mail.bestnewantiwrinklecream.com - GET /wp-content/plugins/jetpack/modules/3
185.211.247.31 port 443 - bulighhesin.ru - HTTPS/SSL/TLS traffic caused by Zeus Panda Banker
www.google.com - HTTPS traffic, probably a connectivity check by infected Windows host

MALWARE RETRIEVED FROM THE INFECTED HOST:

SHA256 hash: 2101f58099128c1192da4373458e425e816fe3761bc2834423dfdb3944a939fe
File size: 311,296 bytes
File name: invoice_325399.doc [any six random digits for the numbers]
File description: Word document with macro for Hancitor

SHA256 hash: 814e74e42d760b3f2ed66346156114122e7d2f9c209f9c51a97eb367e8d23d2b
File size: 126,976 bytes
File location: C:\Users\[username]\AppData\Roaming\[existing directory path]\[random name].exe
File description: Zeus Panda Banker

Shown above: Zeus Panda Banker persistent on the infected Windows host.

Once again, here are the associated files:

Zip archives are password-protected with the standard password. If you don't know it, look at the "about" page of this website.

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