Malicious PDF — malware analysis report

Static analysis result for SHA-256 493e8c1a3fdce974…

MALICIOUS

PDF

18.3 KB Created: 2020-03-18 21:46:54 +00:00 Authoring application: mPDF 5.7
MD5: 43f50644cf1420e601ea0f278e595587 SHA-1: 03d59b895f8a108d677c31d147b6c35b01df8880 SHA-256: 493e8c1a3fdce974fc8faa0b4090eac2267229c9cd4f92c802ef643c1714f81a
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, which suggests a link farm or SEO poisoning attack. The ML_NYX_PDF_MALICIOUS heuristic further supports the malicious nature of the document. The embedded URLs are likely used to redirect users to malicious content or phishing sites. No scripts were extracted from this sample.

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://rtuninnsi.myhome.cx/46a56a06a86a7/Jessica-Rules-the-Dark-Side-Jessica-2-by-Beth-Fantaskey.pdf
    • http://rtuninnsi.myhome.cx/36a66a26a86a56a8/Jessica-Rules-the-Dark-Side-by-Beth-Fantaskey.pdf
    • http://rtuninnsi.myhome.cx/46a86a76a96a7/The-Wedding-of-Antanasia-Jessica-Packwood-and-Lucius-Valeriu-Vladescu-Jessica-1-5-by-Beth-Fantaskey.pdf
    • http://rtuninnsi.myhome.cx/46a86a26a66a86a4/Promessi-Vampiri-The-dark-side-by-Beth-Fantaskey.pdf
    • http://rtuninnsi.myhome.cx/56a56a66a66a96a4/The-Heart-of-the-Rougarou-The-Secret-of-Wolf-River-1-by-Jessica-Musso-Jessica-Lupo-.pdf
    • http://rtuninnsi.myhome.cx/46a16a36a46a26a6/Lessons-from-Jessica-Ultimate-Caregiving-Growing-Up-with-Jessica-2-by-James-Walker.pdf
    • http://rtuninnsi.myhome.cx/76a96a46a96a76a3/Chemical-senses-Tincture-of-Dr-Jekyll-by-Beth-Fantaskey.pdf
    • http://rtuninnsi.myhome.cx/46a56a46a06a96a0/The-Dark-Huntsman-Tales-of-The-Black-Court-1-by-Jessica-Aspen.pdf
    • http://rtuninnsi.myhome.cx/16a16a36a76a16a26a5/Liebe-ist-auch-Verzeihen-Jessica-Stein-Reihe-by-Jessica-Stein.pdf
    • http://rtuninnsi.myhome.cx/26a76a66a36a36a5/Stealing-Beauty-Fairy-Tales-After-Dark-Book-1-by-Jessica-Collins.pdf
    • http://rtuninnsi.myhome.cx/16a06a36a36a96a4/The-Dark-Side-of-Death-The-Dark-Side-1-by-S-T-Phillips.pdf
    • http://rtuninnsi.myhome.cx/56a86a26a96a06a2/The-Dark-Side-of-the-Moon-The-Dark-Side-of-the-Moon-Series-1-by-Reed-Piller.pdf
    • http://rtuninnsi.myhome.cx/26a76a66a36a26a1/The-Other-Side-Glacier-2-by-Beth-Lynn.pdf
    • http://rtuninnsi.myhome.cx/86a46a06a46a5/The-Dark-Side-of-Midnight-Featuring-The-Other-Side-of-Midnight-Rage-of-Angels-Bloodline-by-Sidney-Sheldon.pdf
    • http://rtuninnsi.myhome.cx/26a66a16a66a86a2/Dark-Side-of-the-Veil-Dark-Court-1-by-Stormy-Glenn.pdf
    • http://rtuninnsi.myhome.cx/56a16a86a16a9/Because-of-Him-Fortunate-1-by-Jessica-Roe.pdf
    • http://rtuninnsi.myhome.cx/16a16a86a16a06a9/Nobody-Has-To-Know-by-Jessica-Ross.pdf
    • http://rtuninnsi.myhome.cx/16a16a06a26a46a76a4/Something-in-the-Way-Something-in-the-Way-1-by-Jessica-Hawkins.pdf
    • http://rtuninnsi.myhome.cx/36a16a46a46a96a3/If-Only-We-by-Jessica-Sankiewicz.pdf
    • http://rtuninnsi.myhome.cx/36a76a16a16a06a8/The-Becoming-The-Becoming-1-by-Jessica-Meigs.pdf
    • http://rtuninnsi.myhome.cx/46a16a36a46a26a6/Lessons-from-Jessica-Ult

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