Malicious PDF — malware analysis report

Static analysis result for SHA-256 5dbd81f05948c0d7…

MALICIOUS

PDF

19.4 KB Created: 2019-05-06 16:35:21 +01:00 Authoring application: mPDF 5.7
MD5: 58fe26b358a15bce1ae0d1c6ca147852 SHA-1: 0b55b51c041b65a3f71d59fdd151de6820fd2bb1 SHA-256: 5dbd81f05948c0d726bce21e64e33edd858a361823b091ecd0c29bb9dfd868c5
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs, many of which are structured with numeric slugs and book titles, strongly indicating a link farm for SEO manipulation or to distribute malicious content. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted, and the document body was unreadable.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

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/1097099096095/Side-by-Side-Leadership-Achieving-Outstanding-Results-Together-by-Dennis-A-Romig.pdf
    • http://loaminoo.linkpc.net/4098093090097099/Insidious-Tales-from-the-Dark-Side-1-by-Aleatha-Romig.pdf
    • http://loaminoo.linkpc.net/9093091093090096/Three-Translations-of-the-Koran-Al-Qur-an---Side-by-Side-with-Each-Verse-Not-Split-Across-Pages-by-Anonymous.pdf
    • http://loaminoo.linkpc.net/5091097099091094/Claiming-Abraham-Reading-the-Bible-and-the-Qur-an-Side-by-Side-by-Michael-E-Lodahl.pdf
    • http://loaminoo.linkpc.net/1091090093098095096/Side-by-Side-The-Revolutionary-Mother-Daughter-Program-for-Conflict-Free-Communication-by-Charles-Sophy.pdf
    • http://loaminoo.linkpc.net/1096090097095092/The-Other-Side-The-Other-Side-Trilogy-Book-1-by-Anna-Marie-McIntyre.pdf
    • http://loaminoo.linkpc.net/1098095094091/Photoshop-Painter-Illustrator-Side-By-Side-by-Wendy-Crumpler.pdf
    • http://loaminoo.linkpc.net/1090093090092091/The-Toyota-Way-to-Lean-Leadership-Achieving-and-Sustaining-Excellence-Through-Leadership-Development-by-Jeffrey-K-Liker.pdf
    • http://loaminoo.linkpc.net/8094090094095/The-Dark-Side-of-Midnight-Featuring-The-Other-Side-of-Midnight-Rage-of-Angels-Bloodline-by-Sidney-Sheldon.pdf
    • http://loaminoo.linkpc.net/2099094090091095/Side-by-Side-by-Jenni-L-Walsh.pdf
    • http://loaminoo.linkpc.net/3092092092094091/Other-Side-of-Night-Bastian-amp-Riley-Other-Side-of-Night-1-by-S-L-Armstrong.pdf
    • http://loaminoo.linkpc.net/4098095092/The-Girl-from-the-Other-Side-Si-il-A-R-n-Volume-1-The-Girl-from-the-Other-Side-1-by-Nagabe.pdf
    • http://loaminoo.linkpc.net/3095095090094/Bright-Side-Bright-Side-1-by-Kim-Holden.pdf
    • http://loaminoo.linkpc.net/6099093094093/Bright-Side-Bright-Side-1-by-Kim-Holden.pdf
    • http://loaminoo.linkpc.net/3098097097099091/The-Wild-Side-The-Wild-Side-1-by-R-K-Lilley.pdf
    • http://loaminoo.linkpc.net/4099098092098095/A-New-Brand-World-Eight-Principles-for-Achieving-Brand-Leadership-in-the-Twenty-First-Century-by-Scott-Bedbury.pdf
    • http://loaminoo.linkpc.net/3093093097091095/Sun-Side-by-J-Kavanagh.pdf
    • http://loaminoo.linkpc.net/4095097099098099/The-Other-Side-of-Ourselves-by-Rob-Taylor.pdf
    • http://loaminoo.linkpc.net/8096097092092/The-Other-Side-by-J-D-Robb.pdf
    • http://loaminoo.linkpc.net/8091092090094097/Saucy-On-The-Side-by-Jen-Purcell.pdf

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