Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9d46bca025e38ec…

MALICIOUS

PDF

16.0 KB Created: 2019-04-30 19:57:49 +01:00 Authoring application: mPDF 5.7
MD5: 379cda462ccc5c34c02595504eca0bd1 SHA-1: 3eda3b01def9450565b738c34059db4c1417a48c SHA-256: a9d46bca025e38ec4e4b46eb58e30f39d819622bc4956923d7cb9c9cd73a6d00
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged by a machine learning classifier and contains a large number of embedded links, many of which point to numeric slugs on the 'loaminoo.linkpc.net' domain. This suggests a link farm or SEO poisoning attack, likely intended to drive traffic to malicious content or to mask the true destination of the links. The document body was unreadable, but the heuristic firings strongly indicate a malicious intent related to link distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9898

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
    • http://loaminoo.linkpc.net/1095092091095090/What-If-by-Rebecca-Donovan.pdf
    • http://loaminoo.linkpc.net/6090091094092092/Et-si-by-Rebecca-Donovan.pdf
    • http://loaminoo.linkpc.net/2098094098091090/What-If-by-Rebecca-Donovan.pdf
    • http://loaminoo.linkpc.net/2094095091097094/Out-of-Breath-Breathing-3-by-Rebecca-Donovan.pdf
    • http://loaminoo.linkpc.net/1090090098098096/Reason-to-Breathe-Breathing-1-by-Rebecca-Donovan.pdf
    • http://loaminoo.linkpc.net/4096093096099/Reason-to-Breathe-Breathing-1-by-Rebecca-Donovan.pdf
    • http://loaminoo.linkpc.net/1094097094093096/Igniting-Lies-Burning-1-by-Rebecca-Donovan.pdf
    • http://loaminoo.linkpc.net/1090094095098/Reason-to-Breathe-Breathing-1-by-Rebecca-Donovan.pdf
    • http://loaminoo.linkpc.net/4092094093099/The-Breathing-Series-Breathing-1-2-by-Rebecca-Donovan.pdf
    • http://loaminoo.linkpc.net/2099095092091093/Donovan-s-Angel-Donovan-s-of-the-Delta-1-by-Peggy-Webb.pdf
    • http://loaminoo.linkpc.net/2097093092094092/Footprints-in-the-Sand-A-Piper-Donovan-Mystery-Piper-Donovan-Wedding-Cake-Mysteries-Book-3-by-Mary-Jane-Clark.pdf
    • http://loaminoo.linkpc.net/6098094099098095/Meurtre-Heron-s-Cove-T1---S-rie-Emma-Sharpe-et-Colin-Donovan-Emma-Sharpe-amp-Colin-Donovan-by-Carla-Neggers.pdf
    • http://loaminoo.linkpc.net/1091098096092099092/Ryan-s-Dinosaur-and-the-Neon-Fish-Two-Stories-from-Rebecca-s-Collection-by-Rebecca-Lynne-Enden.pdf
    • http://loaminoo.linkpc.net/2094096098090091/The-Way-of-Men-by-Jack-Donovan.pdf
    • http://loaminoo.linkpc.net/3092099090090095/The-Art-of-Steampunk-by-Art-Donovan.pdf
    • http://loaminoo.linkpc.net/3096092097099093/The-Bond-by-William-Donovan.pdf
    • http://loaminoo.linkpc.net/2091096092093095/The-Girl-Most-Likely-To-by-Susan-Donovan.pdf
    • http://loaminoo.linkpc.net/2091091096096093/The-Caretaker-The-Sin-Bin-2-by-Dahlia-Donovan.pdf
    • http://loaminoo.linkpc.net/8098098095092/Being-Emily-by-Anne-Donovan.pdf
    • http://loaminoo.linkpc.net/4096094099092090/Eye-of-the-Witch-by-Dana-E-Donovan.pdf

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