Malicious PDF — malware analysis report

Static analysis result for SHA-256 62ec5ea0a0d3e5d7…

MALICIOUS

PDF

48.2 KB Created: 2020-08-08 02:20:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 356f7918bfd68ed189b795858650b9ae SHA-1: 2b709b1cd8a6ffe4918b7960a279da34a0c4e2dd SHA-256: 62ec5ea0a0d3e5d7def16a36647aaf859a9f86c11edc5fc877437a34fa9b8283
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains a large number of links, many of which point to a redirector service (ttraff.ru). The document body itself contains obfuscated text and URLs, suggesting an attempt to disguise malicious content. The primary function appears to be directing users to potentially malicious websites through a link farm, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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 https://ttraff.ru/pify?keyword=amorphous+silicon+solar+cell+pdf In PDF document text
    • http://files.backingevents.com/uploads/1/3/1/4/131453329/wefelekawisofesa.pdfIn PDF document text
    • http://files.supplydeskhavering.com/uploads/1/3/2/6/132695554/e03646db08a217.pdfIn PDF document text
    • http://mijuseku.columbinepta.org/uploads/1/3/1/0/131070450/dapotudusilufuv-fuganenipexomav-pavuza.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9444/2145/files/zefesusotuzokupupuraxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0944/0917/files/mopunudinezevizovusazanok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0637/7632/files/bitufilavekarowukazemuza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6217/3604/files/dipakujokokoxixa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/93867881616.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6956/3290/files/juzidopusiridukepaniza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3729/4754/files/87098813031.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1251/4201/files/fantasia_models_primteen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2240/9125/files/dujinumupov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4539/6386/files/57003666497.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4818/1666/files/12746326511.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/1734/3900/files/tinkers_construct_splintering.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007dd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DD2 5384 bytes
SHA-256: 42e6a6cf2c07229ac013e4588dbf21adbde1a246d2e3f59db1b0018ec970dd11
font_01_sfnt_off00008ff4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FF4 10472 bytes
SHA-256: bd8380fbff4d60b855fbbb6c7e1975501be28b004901fbfc620458bdc20b7701

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