Malware spam: "Emailing: Photo 25-07-2016, 34 80 10" / "Emailing: Document 25-07-2016, 72 35 48"

This spam appears to come from various senders within the victim's own domain, but this is a simple forgery. It has a malicious attachment:

From:    Rebeca [Rebeca3@victimdomain.tld]
Date:    25 July 2016 at 10:16
Subject:    Emailing: Photo 25-07-2016, 34 80 10


Your message is ready to be sent with the following file or link
attachments:

Photo 25-07-2016, 34 80 10


Note: To protect against computer viruses, e-mail programs may prevent
sending or receiving certain types of file attachments.  Check your e-mail
security settings to determine how attachments are handled.

Attached is a .rar archive with a name matching the subject. Inside is a malicious .js script beginning with "Photo 25-07-2016".

An alternative variant comes with a malicious Word document:

From:    Alan [Alan306@victimdomain.tld]
Date:    25 July 2016 at 12:40
Subject:    Emailing: Document 25-07-2016, 72 35 48

Your message is ready to be sent with the following file or link
attachments:

Document 25-07-2016, 72 35 48


Note: To protect against computer viruses, e-mail programs may prevent
sending or receiving certain types of file attachments.  Check your e-mail
security settings to determine how attachments are handled.

The attachment is this case is a .DOCM filed named in a similar way as before.

This analysis is done by my usual trusted source (thank you). These scripts and macros download a component from one of the following locations:

0urkarachi.atspace.com/7h8gbiuomp
cantrell.biz/7h8gbiuomp
czemarserwis.home.pl/7h8gbiuomp
exploromania4x4club.ro/7h8gbiuomp
finaledithon.web.fc2.com/7h8gbiuomp
koushuen.co.jp/7h8gbiuomp
moehakiba.web.fc2.com/7h8gbiuomp
ostseeurlaub-tk.homepage.t-online.de/7h8gbiuomp
r-p-b.de/7h8gbiuomp
topmanagers.claas.fr/7h8gbiuomp
tpllaw.com/7h8gbiuomp
tutomogiya.web.fc2.com/7h8gbiuomp
vplegat.dk/7h8gbiuomp
www.aproso.de/7h8gbiuomp
www.ciapparelli.com/7h8gbiuomp
www.foto-aeree.it/7h8gbiuomp
www.gruetzi.es/7h8gbiuomp
www.isleofwightcomputerrepairs.talktalk.net/7h8gbiuomp
www.louislechien.net/7h8gbiuomp
www.motoslittetrecime.com/7h8gbiuomp
www.sistronic.com.co/7h8gbiuomp
www.tridi.be/7h8gbiuomp
www.vakantiehuisjeameland.nl/7h8gbiuomp
www.westline.it/7h8gbiuomp
zemlya.web.fc2.com/7h8gbiuomp

The payload here is Locky ransomware, and it phones home to the following addresses:

77.222.54.202/upload/_dispatch.php (SpaceWeb CJSC, Russia)
194.1.236.126/upload/_dispatch.php (Internet Hosting Ltd, Russia)
185.117.153.176/upload/_dispatch.php (Marosnet, Russia)

Recommended blocklist:
77.222.54.202
194.1.236.126
185.117.153.176