Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d1a7ee7b4bb0190…

MALICIOUS

PDF

43.6 KB Created: 2020-08-16 20:08:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fba278b5a33feef4e5ae6fdaa7de963a SHA-1: 8244e1bce66c474dc2e77b86d85e04ff6898089d SHA-256: 3d1a7ee7b4bb019020d607c98b0004a3d6817a9577afdfd2e5306783dec77a0d
194 Risk Score

Malware Insights

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

The PDF contains a link to a redirector URL, ttraff.com, which is flagged as malicious. It also hosts a large number of external PDF links, many pointing to Shopify domains, suggesting an attempt to manipulate search engine results or distribute content. The document body, though heavily obfuscated, contains text related to a 'Kyocera cs 3552ci manual' and the URL, indicating a lure to disguise the malicious intent. The ML classifier strongly supports the malicious verdict.

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.com/pify?keyword=kyocera+cs+3552ci+manual In PDF document text
    • http://files.paradigmprint.org/uploads/1/3/0/9/130969772/1498406.pdfIn PDF document text
    • http://files.michellebergermd.com/uploads/1/3/1/3/131383453/munimedof.pdfIn PDF document text
    • http://pemavok.tanyagjewelry.com/uploads/1/3/1/4/131406821/dojopikolunitepupuze.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4953/3088/files/5156517784.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1717/3149/files/woxowodufarujama.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1926/3397/files/runovujenet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9906/2421/files/wuwuzixavajamate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2356/4957/files/4264891308.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3900/6618/files/9204549203.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1660/1255/files/81823321748.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3164/9689/files/502316129.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7485/3793/files/jodovigizalel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6484/2647/files/tezekopab.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 4

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_off000057f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57F9 5240 bytes
SHA-256: af80338e3da91267422b0a53a07b884baeb54c7b71b9152fcd53b9204e81a3a5
font_01_sfnt_off000069a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69A9 13292 bytes
SHA-256: b10c4a692678257b0956406cddbf3f5b94cf3b929c70801dbee7416d46b4ab9c
font_02_sfnt_off00009373.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9373 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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