Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd70f6f9f0f12148…

MALICIOUS

PDF

20.9 KB Created: 2019-04-30 03:15:15 +01:00 Authoring application: mPDF 5.7
MD5: 1afa6ad91da76abfce09e12edc9d2009 SHA-1: 46156ea4d81cff0f2ff4d93b3effe57e77f9ae85 SHA-256: bd70f6f9f0f121488ede0ebb28b4cc7baa73c062ac0bf34e0f8c891cccac8ff4
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded URLs, identified as a link farm. While most of these URLs are marked as benign, the sheer volume and the critical heuristic firing suggest a malicious intent, likely for SEO manipulation or to redirect users to malicious content. No scripts were extracted from this sample. The attack pattern is inferred from the PDF structure and embedded links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9924

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/1091091092099091093/A-Swiss-Banker-in-Indiana-Farm-Country-How-a-Farm-Boy-Grew-Up-to-Lead-One-of-America-s-Most-Efficient-Banks-by-Tanya-Isch-Caylor.pdf
    • http://loaminoo.linkpc.net/4092093099090090/The-Seasons-on-Henry-s-Farm-A-Year-of-Food-and-Life-on-a-Sustainable-Farm-by-Terra-Brockman.pdf
    • http://loaminoo.linkpc.net/7094090099091097/The-Seasons-on-Henry-s-Farm-A-Year-of-Food-and-Life-on-a-Sustainable-Farm-by-Terra-Brockman.pdf
    • http://loaminoo.linkpc.net/1097098090098093/Real-Estate-Marketing-To-A-Farm-How-To-Find-Grow-and-Reap-The-Benefits-of-a-Geographic-Farm-by-Tara-Jacobsen.pdf
    • http://loaminoo.linkpc.net/1098093093091093/Our-Farm-By-the-Animals-of-Farm-Sanctuary-by-Maya-Gottfried.pdf
    • http://loaminoo.linkpc.net/4095098098097094/Farm-Fatale-A-Comedy-of-Country-Manors-by-Wendy-Holden.pdf
    • http://loaminoo.linkpc.net/2098095098096097/A-Year-on-Ladybug-Farm-Ladybug-Farm-1-by-Donna-Ball.pdf
    • http://loaminoo.linkpc.net/1090094099097092096/Saddle-Pals-Memories-of-Favorite-Horses-Shared-by-Readers-of-Country-and-Farm-amp-Ranch-Living-by-Jerry-Weibel.pdf
    • http://loaminoo.linkpc.net/1098096094090/Out-Of-The-Earth-A-Heritage-Farm-Coast-Cookbook-The-Heritage-Farm-Cookbook-Series-by-Kerry-Downey-Romaniello.pdf
    • http://loaminoo.linkpc.net/3095098093092096/The-Oyster-War-The-True-Story-of-a-Small-Farm-Big-Politics-and-the-Future-of-Wilderness-in-America-by-Summer-Brennan.pdf
    • http://loaminoo.linkpc.net/1092093098095099/Black-Hill-Farm-Black-Hill-Farm-1-by-Tim-O-39-Rourke.pdf
    • http://loaminoo.linkpc.net/3096099094098091/Unholy-Trinity-The-Vatican-The-Nazis-and-The-Swiss-Banks-by-Mark-Aarons.pdf
    • http://loaminoo.linkpc.net/3097094090096090/Farm-54-by-Galit-Seliktar.pdf
    • http://loaminoo.linkpc.net/1094094095098093/On-the-Farm-by-Stevie-Cameron.pdf
    • http://loaminoo.linkpc.net/9092097095098/Go-to-Sleep-Little-Farm-by-Mary-Lyn-Ray.pdf
    • http://loaminoo.linkpc.net/3096090093099099/what-s-that-noise-on-the-farm-by-Suzie-Jay.pdf
    • http://loaminoo.linkpc.net/4098091096096099/My-Farm-by-Alison-Lester.pdf
    • http://loaminoo.linkpc.net/8096094097091/Animal-Farm-by-Ian-Wooldridge.pdf
    • http://loaminoo.linkpc.net/7099093090090094/Animal-Farm-by-George-Orwell.pdf
    • http://loaminoo.linkpc.net/5096091091099090/Caillou-A-Day-at-the-Farm-by-Joceline-Sanschagrin.pdf
    • http://loaminoo.linkpc.net/1097098090098093/R

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