Malicious PDF — malware analysis report

Static analysis result for SHA-256 1603c4b189fd4338…

MALICIOUS

PDF

23.9 KB Created: 2019-05-01 17:13:01 +01:00 Authoring application: mPDF 5.7
MD5: e0e5764c5c429aa079ab47ed9e7f4450 SHA-1: e8f366321d1f4c1d6bbe538fc98e111eb10627de SHA-256: 1603c4b189fd43382f034aac33e7f9dc1c379f5537dacdcb6e909c9f578b2efb
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, identified as a link farm. The ML classifier also flagged this PDF as malicious. The primary attack pattern involves directing users to a large collection of external PDF files, likely for SEO manipulation or to host malicious content. No scripts were extracted, and the document body was heavily obfuscated, preventing further analysis of specific content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9901

Heuristics 2

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://loaminoo.linkpc.net/4099092092095091/Grounding-Clearing-An-Earth-Lodge-Pocket-Guide-to-Being-Safe-Present-and-Comfortable-on-Earth-by-Maya-Cointreau.pdf
    • http://loaminoo.linkpc.net/7095094090090096/The-Comprehensive-Vibrational-Healing-Guide-Life-Energy-Healing-Modalities-Flower-Essences-Crystal-Elixirs-Homeopathy-and-the-Human-Biofield-by-Maya-Cointreau.pdf
    • http://loaminoo.linkpc.net/3096093094095096/The-Comprehensive-Vibrational-Healing-Guide-Life-Energy-Healing-Modalities-Flower-Essences-Crystal-Elixirs-Homeopathy-amp-the-Human-Biofield-by-Maya-Cointreau.pdf
    • http://loaminoo.linkpc.net/6095090099093095/A-Beginner-s-Guide-to-Invading-Earth-Beginner-s-Guide-to-Invading-Earth-1-by-Gerhard-Gehrke.pdf
    • http://loaminoo.linkpc.net/8092093093/Spying-on-Whales-The-Past-Present-and-Future-of-Earth-s-Most-Awesome-Creatures-by-Nick-Pyenson.pdf
    • http://loaminoo.linkpc.net/2098090090091097/Earth-Star-Earth-Girl-2-by-Janet-Edwards.pdf
    • http://loaminoo.linkpc.net/4091098091095097/Breath-of-Earth-Blood-of-Earth-1-by-Beth-Cato.pdf
    • http://loaminoo.linkpc.net/6093091095099092/The-master-plan-past-present-and-future-of-the-human-experiment-on-planet-Earth-including-a-guided-tour-of-the-Underworld-by-Hilarion.pdf
    • http://loaminoo.linkpc.net/1091096099092091097/Mom-Saves-the-Universe-Beginning-in-2025-asteroid-storms-super-Earth-quakes-and-tsunamis-decimate-the-Earth-and-halve-the-human-population-over-a-ten-year-period-by-B-P-Meinhardt.pdf
    • http://loaminoo.linkpc.net/3098098098091092/New-Earth-Eve-Seeding-New-Earth-1-by-C-M-Roberts.pdf
    • http://loaminoo.linkpc.net/1099093097098093/Mysteries-Of-The-Hollow-Earth-Egs1004-Hollow-Earth-Expedition-by-Exile-Game-Studio.pdf
    • http://loaminoo.linkpc.net/6098090094092/An-Astronaut-s-Guide-to-Life-on-Earth-by-Chris-Hadfield.pdf
    • http://loaminoo.linkpc.net/3096090098093/An-Astronaut-s-Guide-to-Life-on-Earth-by-Chris-Hadfield.pdf
    • http://loaminoo.linkpc.net/6091098091099092/The-Down-to-Earth-Guide-To-Global-Warming-by-Laurie-David.pdf
    • http://loaminoo.linkpc.net/4092092095097/Echo-of-an-Earth-Angel-Earth-Angel-Trilogy-1-by-Sarah-M-Ross.pdf
    • http://loaminoo.linkpc.net/3093091093099094/Earth-The-Audiobook-A-Visitor-s-Guide-to-the-Human-Race-by-Jon-Stewart.pdf
    • http://loaminoo.linkpc.net/3091097095092/Sputnik-s-Guide-to-Life-on-Earth-by-Frank-Cottrell-Boyce.pdf
    • http://loaminoo.linkpc.net/9099095098093/Your-Guide-to-Earth-s-Pivotal-Years-A-Direct-Path-to-Enlightened-Living-by-Selacia.pdf
    • http://loaminoo.linkpc.net/1090098094093097099/Earth-Ponds-Sourcebook-The-Pond-Owner-s-Manual-and-Resource-Guide-by-Tim-Matson.pdf
    • http://loaminoo.linkpc.net/6096094097099/A-Native-Clearing-Filipino-Poetry-and-Verse-from-English-Since-the-50s-to-the-Present-Edith-L-Tiempo-to-Cirilo-F-Bautista-by-G-mino-H-Abad.pdf