Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ab4a1a9abb90a44…

MALICIOUS

PDF

19.6 KB Created: 2019-05-02 05:41:37 +01:00 Authoring application: mPDF 5.7
MD5: ebd292c7f91d6bb23f8ef84248244a57 SHA-1: b365634055657a409ad667b19c0a2195f35020c0 SHA-256: 7ab4a1a9abb90a44c294310879dcebf42afcbe8c9e96624b8f14f531fe4d061c
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file 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 an attempt to redirect users to potentially malicious content or for SEO manipulation. No scripts were extracted, but the PDF structure and URL distribution are indicative of a malicious document, likely delivered as a spearphishing attachment.

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/5094099090094097/12-Years-a-Slave-Book-by-Solomon-Northup-Full-Twelve-Years-a-Slave-Original-Book-with-Annotated-Teaching-Lesson-Study-Guide-with-45-Essay-Questions-and-Answers-by-Solomon-Northup.pdf
    • http://loaminoo.linkpc.net/2094090093092095/12-Years-a-Slave-by-Solomon-Northup.pdf
    • http://loaminoo.linkpc.net/7095094096096096/12-Years-a-Slave-by-Solomon-Northup.pdf
    • http://loaminoo.linkpc.net/4095093094099091/Twelve-Years-a-Slave-by-Solomon-Northup.pdf
    • http://loaminoo.linkpc.net/2096096097095097/Twelve-Years-a-Slave-by-Solomon-Northup.pdf
    • http://loaminoo.linkpc.net/5090095091094097/Twelve-Years-a-Slave-by-Solomon-Northup.pdf
    • http://loaminoo.linkpc.net/8090093090094098/Twelve-Years-a-Slave-Color-Illustrated-Formatted-for-E-Readers-by-Solomon-Northup.pdf
    • http://loaminoo.linkpc.net/5093095095094091/12-years-a-slave---Le-livre-qui-a-inspir-le-film-de-Steve-McQueen-by-Solomon-Northup.pdf
    • http://loaminoo.linkpc.net/2095091092097095/12-Years-A-Slave-True-story-of-an-African-American-who-was-kidnapped-in-New-York-and-sold-into-slavery---with-bonus-material-Uncle-Tom-s-Cabin-by-Harriet-Beecher-Stowe-by-Solomon-Northup.pdf
    • http://loaminoo.linkpc.net/1090096094096092093/12-Years-A-Salve-by-Solomon-Northup.pdf
    • http://loaminoo.linkpc.net/4093092098096096/The-Classic-Slave-Narratives-by-Henry-Louis-Gates-Jr-.pdf
    • http://loaminoo.linkpc.net/7093093097096091/Behind-the-Scenes-Or-Thirty-Years-a-Slave-and-Four-Years-in-the-White-House-by-Elizabeth-Keckley.pdf
    • http://loaminoo.linkpc.net/4097099097090097/Slave-in-Training-The-Slave-Book-1-by-Danny-Tyran.pdf
    • http://loaminoo.linkpc.net/9098099093093091/The-Accidental-Slave-The-Slave-Series-1-by-Elin-Peer.pdf
    • http://loaminoo.linkpc.net/8092099097091098/Slavery-Not-Forgiven-Never-Forgotten-The-Most-Powerful-Slave-Narratives-Historical-Documents-amp-Influential-Novels-by-Frederick-Douglass.pdf
    • http://loaminoo.linkpc.net/1092098095098096/Slave-Girl-Flogging-Stool-The-Atkoi-Slave-Girl-Book-5-by-Henry-Sparrowhawk.pdf
    • http://loaminoo.linkpc.net/4098096096091094/The-Slave-Trade-The-Story-of-the-Atlantic-Slave-Trade-1440-1870-by-Hugh-Thomas.pdf
    • http://loaminoo.linkpc.net/3090094093096090/Slave-Girl-Captives-The-Atkoi-Slave-Girl-Book-16-by-Henry-Sparrowhawk.pdf
    • http://loaminoo.linkpc.net/2090095097099099/Love-Slave-for-Two-Beginnings-Love-Slave-for-Two-05-by-Tymber-Dalton.pdf
    • http://loaminoo.linkpc.net/2090095098090094/Love-Slave-for-Two-Reckoning-Love-Slave-for-Two-4-by-Tymber-Dalton.pdf

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