Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7036bd4d302eedb…

MALICIOUS

PDF

42.0 KB Created: 2020-08-27 00:01:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f3d56b17b0b369147ae3f6d3662c6e8b SHA-1: cb48094413f3f78ae3098e95da895df5e9fe096c SHA-256: d7036bd4d302eedbc3c22afbe839408406a3253f36a869016612edba15b52dd3
194 Risk Score

Malware Insights

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

The PDF was flagged as malicious by a machine learning classifier and contains numerous embedded links. One critical heuristic identified a link to a known malicious redirector (ttraff.cc), and another identified a large PDF link farm hosted on Shopify. The document body is heavily obfuscated, but the presence of the redirector URL suggests the document's primary purpose is to lure users to malicious content.

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.cc/pify?keyword=computer+craft+modem In PDF document text
    • http://pamat.charankainth.com/uploads/1/3/0/8/130814328/a81156d5220.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/1/0431/8419/3697/files/dowevefugitagudobuko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9240/1558/files/full_body_workout_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0744/1053/files/52877342279.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0830/9923/files/35019255078.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7151/2480/files/games_about_squares.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9112/2584/files/pdf_split_free_software.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2909/3784/files/notujudedamozuvefog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5829/1093/files/pibubesaxol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5765/1613/files/windows_10_bootable_usb_rufus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9197/5580/files/18699937256.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
🗂 Part of campaign: ccfreelancejournalist.co.uk 4 samples

Related samples 2

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000053e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53E4 4996 bytes
SHA-256: c3b772aa6122ee49c75e0659e28bc8cf6b534b38789c014515fb691651a84654
font_01_sfnt_off000064c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64C8 9924 bytes
SHA-256: 42f64529da2390e287ff23daed01a391d64f141ed248f84131bce7b814525b9d
font_02_sfnt_off00008704.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8704 16036 bytes
SHA-256: 18601d9271fe4683d438f2013f2509f505864d17f9a6a2ee19315658488ac657

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