Malicious PDF — malware analysis report

Static analysis result for SHA-256 a788317131308f8a…

MALICIOUS

PDF

37.6 KB Created: 2019-05-02 05:23:24 +01:00 Authoring application: mPDF 5.7
MD5: 35b9699497bc3600db965854ffc5c46a SHA-1: 119cb42da1f5acefa7a64e4dffefc41dd44372ec SHA-256: a788317131308f8a1f1563c8194f69a92402230feed443b711370604bcd31264
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs, identified as a link farm. While the document body is heavily obfuscated, the presence of numerous external links suggests a malicious intent, possibly for SEO manipulation or to redirect users to malicious sites. The ML classifier also flagged this PDF with high confidence. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9894

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/1091096093096096096/Liza-Marklund-Books-2017-Checklist-Reading-Order-of-Annika-Bengtzon-Series-and-List-of-All-Liza-Marklund-Books-by-Series-List.pdf
    • http://loaminoo.linkpc.net/1091097094090094093/Karen-Rose-Books-2017-Checklist-Reading-Order-of-Baltimore-Series-Chicago-Series-Cincinnati-Series-Daniel-Vartanian-Series-Romantic-Suspense-Series-and-List-of-All-Karen-Rose-Books-by-Series-List.pdf
    • http://loaminoo.linkpc.net/8092098092098093/Guy-Gavriel-Kay-Books-2017-Checklist-Reading-Order-of-Fionavar-Tapestry-Series-Sarantine-Mosaic-Series-Under-Heaven-Series-and-List-of-All-Guy-Gavriel-Kay-Books-by-Sorted-List.pdf
    • http://loaminoo.linkpc.net/7090093094099098/Deanna-Raybourn-Books-2017-Checklist-Reading-Order-of-A-Spear-of-Summer-Grass-Series-City-of-Jasmine-Series-Lady-Julia-Grey-Series-Veronica-Speedwell-Series-and-List-of-All-Deanna-Raybourn-Books-by-Platinum-List.pdf
    • http://loaminoo.linkpc.net/1091096093098090099/Du-gamla-du-fria-av-Liza-Marklund-Imported-Paperback-Swedish-Annika-Bengtzon-del-9-by-Liza-Marklund.pdf
    • http://loaminoo.linkpc.net/9099093092094091/Ann-Leckie-Books-2017-Checklist-Reading-Order-of-Imperial-Radch-Series-and-List-of-All-Ann-Leckie-Books-by-List-Fun.pdf
    • http://loaminoo.linkpc.net/5098095090096095/Fred-Vargas-Books-2017-Checklist-Reading-Order-of-Commissaire-Adamsberg-Series-Three-Evangelists-Series-and-List-of-All-Fred-Vargas-Books-by-Platinum-List.pdf
    • http://loaminoo.linkpc.net/8096094093092091/Coreene-Callahan-Books-2017-Checklist-Reading-Order-of-Circle-of-Seven-Series-Dragonfury-Series-and-List-of-All-Coreene-Callahan-Books-by-Diamond-List.pdf
    • http://loaminoo.linkpc.net/5094094098094097/Brandon-Mull-Books-Checklist-and-Series-in-Order-2017-Beyonders-Series-in-Order-Candy-Shop-War-Series-in-Order-Dragonwatch-Series-in-Order-Fablehaven-Series-Five-Kingdoms-Series-and-More-by-List-To-Read.pdf
    • http://loaminoo.linkpc.net/1090092098094095098/Raymond-Khoury-Books-2017-Checklist-Reading-Order-of-Templar-Series-and-List-of-All-Raymond-Khoury-Books-by-Series-List.pdf
    • http://loaminoo.linkpc.net/5093099096090095/Stieg-Larsson-Books-2017-Checklist-Reading-Order-of-Millennium-Series-and-List-of-All-Stieg-Larsson-Books-by-Series-List.pdf
    • http://loaminoo.linkpc.net/6091095090096095/Carlos-Ruiz-Zafon-Books-2017-Checklist-Reading-Order-of-Cemetery-Of-Forgotten-Series-Niebla-Series-and-List-of-All-Carlos-Ruiz-Zafon-Books-by-Platinum-List.pdf
    • http://loaminoo.linkpc.net/9098093095095090/Dmitry-Glukhovsky-Books-2017-Checklist-Reading-Order-of-Universe-Metro-Series-and-List-of-All-Dmitry-Glukhovsky-Books-by-Platinum-List.pdf
    • http://loaminoo.linkpc.net/8090099096090099/Reed-Farrel-Coleman-Books-2017-Checklist-Reading-Order-of-Coleman-s-Jesse-Stone-Series-Gus-Murphy-Series-Joe-Serpe-Series-Moe-Prager-Series-and-List-of-All-Reed-Farrel-Coleman-Books-by-Series-Order.pdf
    • http://loaminoo.linkpc.net/9092099096090094/Haruki-Murakami-Books-2017-Checklist-Reading-Order-of-1Q84-Series-Rat-Series-and-List-of-All-Haruki-Murakami-Books-by-Series-Order.pdf
    • http://loaminoo.linkpc.net/7091096092099096/Maya-Banks-Series-Reading-Order-amp-Checklist-Series-List-in-Order---KGI-Series-Enforcers-Series-Slow-Burn-Series-amp-All-Other-Books-Listabook-Series-Order-Book-58-by-Listabook.pdf
    • http://loaminoo.linkpc.net/1090091098096097094/Ben-Aaronovitch-Books-Checklist-Reading-Order-of-Doctor-Who-Series-PC-Peter-Grant-Series-and-List-of-All-Ben-Aaronovitch-Books-by-Kevin-Hanson.pdf
    • http://loaminoo.linkpc.net/5090090097091097/Exposed-Annika-Bengtzon-1-by-Liza-Marklund.pdf
    • http://loaminoo.linkpc.net/2096093097091097/The-Bomber-Annika-Bengtzon-4-by-Liza-Marklund.pdf
    • http://loaminoo.linkpc.net/2096093097091096/Prime-Time-Annika-Bengtzon-3-by-Liza-Marklund.pdf
    • http://loaminoo.linkpc.net/8092098092098093/Guy-Gavriel-Kay-Books-2017-Checkl

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