Malicious PDF — malware analysis report

Static analysis result for SHA-256 78d0d113d5c31b87…

MALICIOUS

PDF

23.7 KB Created: 2019-05-05 15:58:48 +01:00 Authoring application: mPDF 5.7
MD5: 720d8d5fffab903e33e4c7c7c86aa18e SHA-1: 3d7589333a39cefb46b5dfa1c7920649c9667ff1 SHA-256: 78d0d113d5c31b87609dfe253b04fe2ae90c0116cd863ce2c677aadcc9262b64
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links pointing to external PDF documents hosted on a dynamic DNS domain. This behavior is indicative of SEO poisoning or a link farm designed to distribute malicious content or redirect users to phishing sites. While the document body itself is heavily obfuscated and unreadable, the heuristic firings strongly suggest the intent is to leverage these links. No scripts were extracted from this sample.

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/1094091098095099/The-Skin-That-We-Speak-Thoughts-on-Language-and-Culture-in-the-Classroom-by-Lisa-Delpit.pdf
    • http://loaminoo.linkpc.net/3095092095095092/English-Language-Learners-and-the-New-Standards-Developing-Language-Content-Knowledge-and-Analytical-Practices-in-the-Classroom-by-Margaret-Heritage.pdf
    • http://loaminoo.linkpc.net/5090094090096094/Teaching-for-Joy-and-Justice-Re-Imagining-the-Language-Arts-Classroom-by-Linda-Christensen.pdf
    • http://loaminoo.linkpc.net/4090091091098091/Soul-Speak-The-Language-of-Your-Body-by-Julia-Cannon.pdf
    • http://loaminoo.linkpc.net/2096091090092098/-quot-Multiplication-Is-for-White-People-quot-Raising-Expectations-for-Other-People-s-Children-by-Lisa-Delpit.pdf
    • http://loaminoo.linkpc.net/1091097090092091096/Cultivating-a-Classroom-Culture-that-Values-Beautiful-Work-by-Kristen-Bechtel.pdf
    • http://loaminoo.linkpc.net/7094098097095/Body-Language-How-to-Read-Others-Thoughts-by-Their-Gestures-by-Allan-Pease.pdf
    • http://loaminoo.linkpc.net/5092091099091090/Death-Sentences-How-Cliches-Weasel-Words-and-Management-Speak-Are-Strangling-Public-Language-by-Don-Watson.pdf
    • http://loaminoo.linkpc.net/9090097093/Under-My-Skin-by-Lisa-Unger.pdf
    • http://loaminoo.linkpc.net/8098098093097091/English---German-Dictionary-W-rterbuch-Englisch---Deutsch-Over-25-000-Translations-Learn-How-to-Speak-German-Language-Tools-by-Klaus-R-diger.pdf
    • http://loaminoo.linkpc.net/2095092098092094/Pot-Culture-The-A-Z-Guide-to-Stoner-Language-amp-Life-by-Shirley-Halperin.pdf
    • http://loaminoo.linkpc.net/8094091090091096/Rapports-An-Introduction-to-French-Language-and-Francophone-Culture-by-Joel-Walz.pdf
    • http://loaminoo.linkpc.net/9092097098092092/Language-Culture-and-Society-An-Introduction-to-Linguistic-Anthropology-by-Zden-39-ek-Salzmann.pdf
    • http://loaminoo.linkpc.net/5091091099094092/International-English-for-Call-Centres-Language-Culture-amp-Empathy-by-Barry-Tomalin.pdf
    • http://loaminoo.linkpc.net/2098090099094096/Southern-as-a-Second-Language-Dixie-3-by-Lisa-Patton.pdf
    • http://loaminoo.linkpc.net/8091090091093090/Speak-Truthfully-Speak-Your-Way-to-an-Authentic-Life-with-Awareness-Courage-and-Confidence-by-Robert-Rabbin.pdf
    • http://loaminoo.linkpc.net/8091093091093096/On-the-Essence-of-Language-The-Metaphysics-of-Language-and-the-Essencing-of-the-Word-Concerning-Herder-s-Treatise-on-the-Origin-of-Language-by-Martin-Heidegger.pdf
    • http://loaminoo.linkpc.net/4097097099099092/American-Hookup-The-New-Culture-of-Sex-on-Campus-by-Lisa-Wade.pdf
    • http://loaminoo.linkpc.net/2092092097095098/The-Savage-Nation-Saving-America-from-the-Liberal-Assault-on-Our-Borders-Language-and-Culture-by-Michael-Savage.pdf
    • http://loaminoo.linkpc.net/1096091090095090/Skin-2-Skin-Inked-2-by-Gavin-M-L-Fletcher.pdf
    • http://loaminoo.linkpc.net/1091097090092091096/Cultivating-a-Classroom-Cult

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