Malicious PDF — malware analysis report

Static analysis result for SHA-256 62835f88667aff10…

MALICIOUS

PDF

46.3 KB Created: 2020-08-14 12:30:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a162af3406aafd73b32d843d0670e881 SHA-1: 5b15a9af6438959a1272f61439d0cca6d86000b4 SHA-256: 62835f88667aff10c21bc6073d769a8d537ed4908cb9001921523138b13e1f0b
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.ru) that is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL and references to 'free download' content, indicating a phishing or scam attempt. The ML classifier also strongly indicated maliciousness.

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=janatha+garage+malayalam+film+songs+free In PDF document text
    • http://files.mydetecting.com/uploads/1/3/1/6/131607169/xunefoze-jobifizer-pijuk.pdfIn PDF document text
    • http://files.themslist.com/uploads/1/3/1/8/131856907/2052423.pdfIn PDF document text
    • http://tafavuj.mrcattclass.com/uploads/1/3/2/6/132696323/1067967.pdfIn PDF document text
    • http://joxemukum.meaganlynnphotography.com/uploads/1/3/0/7/130775795/1657765.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/1/0437/3518/7605/files/jewilepapanurixeke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9228/6363/files/vivabozisab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5804/4826/files/62885971883.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2738/1920/files/gibugotelefido.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0602/4101/files/32153709083.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7656/6684/files/37177391265.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3739/9957/files/peanuts_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7849/2072/files/61416547110.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1324/3033/files/what_is_keybase.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6559/8364/files/4276506230.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0673/0144/files/62819530011.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2655/3752/files/dutazexifowojomabuzabax.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_off0000722c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x722C 5272 bytes
SHA-256: f998e9f147421d58b032bf9bc12ed4061d25fcd00bac1e5dad1b57401eea08c6
font_01_sfnt_off000083f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83F5 12460 bytes
SHA-256: 17d8758c7defb4db19b858d3102f113769c1402aceb734f550abd863c81a8702

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