Malicious PDF — malware analysis report

Static analysis result for SHA-256 34dc588d4bb846e3…

MALICIOUS

PDF

37.5 KB Created: 2020-04-13 06:31:07 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: c08fdb119eb28a7983b1041b9a93bcad SHA-1: 1871cd0c5cd01cd8a3e1982f97e2f8b0ce247f69 SHA-256: 34dc588d4bb846e3b9e2c77eefc41b36da547b6104a06f6531873cf781292366
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF file was flagged by an ML classifier as malicious. It contains a large number of external links, many pointing to similarly structured URLs on different domains, suggesting a link farm or SEO spam operation. The document body text, though partially corrupted, mentions 'Percy Jackson and the Olympians the lightning thief audiobook free download', indicating a lure to entice users to click on the embedded malicious links. The primary attack pattern observed is the distribution of numerous external links within the PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://cherokeestripcompany.net/uploads/1/3/0/7/130776394/130776394.html#percy+jackson+and+the+olympians+the+lightning+thief+audiobook+free+download
    • http://tahoeluxurystay.com/uploads/1/3/0/8/130874213/rolepofav-bazetofa-sesosem.pdf
    • http://lahaina-accommodations.net/uploads/1/3/1/3/131379373/tonudogalenaxoxibes.pdf
    • http://selinakolthek.com/uploads/1/3/0/7/130775835/2405640.pdf
    • http://jesuschristholytemple.org/uploads/1/3/0/6/130639978/7ebeae55aa507f6.pdf
    • http://emergencystoppingonly.org/uploads/1/3/0/5/130588377/81f9f8a76176a.pdf
    • http://ddgastro.com/uploads/1/3/0/5/130589000/godavuli-zimiputal-zofovukudop-jopifelobomi.pdf
    • http://bangalorepost.org/uploads/1/3/0/6/130622101/kafurigegozuk.pdf
    • http://tourmalinecentre.com/uploads/1/3/0/9/130969137/depinil.pdf
    • http://cornucopiaproductionsltd.com/uploads/1/3/0/3/130323298/8f993830.pdf
    • http://palmex.ca/uploads/1/3/0/6/130639450/723a6f4b83fbc2a.pdf
    • http://shuckincrewsensationstraining.com/uploads/1/3/0/6/130603841/3693798.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006ae3.bin
9eb664a158f6de399101530ad5dfc23db78e32cacbb1e7414b34f06cef695627		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6AE3 7800 bytes

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