Malicious PDF — malware analysis report

Static analysis result for SHA-256 136ea2ae5e519c68…

MALICIOUS

PDF

46.6 KB Created: 2020-08-09 15:10:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 116e69939cbd3e1212eca31bb68e9b06 SHA-1: 219ca87e339501284476a6774056710c3bb21d3f SHA-256: 136ea2ae5e519c68f5480e7226199c774c150ce8d06f06bd652c6a472663f281
194 Risk Score

Malware Insights

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

This PDF document contains a large number of embedded links, many of which point to a redirector service (ttraff.ru) that is known to host malicious content. The document body itself is heavily obfuscated but contains the redirector URL. The presence of numerous links suggests an attempt to create a link farm for SEO manipulation, likely as a lure 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=lighting+for+cinematography+pdf In PDF document text
    • http://files.elitestreetwear.com.au/uploads/1/3/1/4/131455680/5d5ddcb.pdfIn PDF document text
    • http://files.ladywellterrariumcompany.com/uploads/1/3/0/9/130969154/a8b1f11141.pdfIn PDF document text
    • http://files.drtonicamacho.com/uploads/1/3/1/4/131438313/nekisigiwu.pdfIn PDF document text
    • http://files.chriscooperart.co/uploads/1/3/0/8/130813466/givujefelob_wadoviga.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/1/0436/1509/2894/files/attachment_theory_adults.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0820/4708/files/jubiwateza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7386/3842/files/vopob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3153/5524/files/waxevuge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7048/8730/files/naredonukamepozufevem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6856/3355/files/xesogefujadojepaxawudivo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0859/7927/files/fallout_4_ammo_codes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0380/5847/files/lekufo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4339/6506/files/60101980612.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2860/9186/files/bhilwara_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4394/5628/files/922419354.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 7

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_off000079b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79B0 5404 bytes
SHA-256: cb1a2975005bbc6bce669cb96835c0fbf5be23d05865d280016cf733c7db9f66
font_01_sfnt_off00008bf9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BF9 9964 bytes
SHA-256: dbfe0d79070be5c75cf1b637a99bed7c904d95fc1588c017e216a30dafa14311

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