Malicious PDF — malware analysis report

Static analysis result for SHA-256 a207e6a79a39f977…

MALICIOUS

PDF

41.8 KB Created: 2020-08-23 09:06:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 17a72916da773f9827156e87b314f16d SHA-1: c195bed6ae724c21c5376a46df9a932df43a4ca2 SHA-256: a207e6a79a39f9777e0a0134b1eee2999d295c30edad50e15c46162ea31fc10a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a prominent link to 'ttraff.com', identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Cool hd wallpapers for mobile free' and the malicious URL, suggesting a lure. The PDF was flagged by a critical heuristic for linking to malicious redirector infrastructure and also by a machine learning model. The presence of numerous external links, many pointing to Shopify domains, indicates a link farm designed to obscure the final malicious destination.

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=cool+hd+wallpapers+for+mobile+free In PDF document text
    • http://nupik.bikerchickdesign.com/uploads/1/3/1/3/131384169/a0c68db806414.pdfIn PDF document text
    • http://files.castlethorpecricketclub.co.uk/uploads/1/3/1/6/131606874/d5ca01f8.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/1/0434/0845/7877/files/73425206263.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8438/2357/files/paladin_build_5e.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/loxidunadubufurepetiverox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8713/2827/files/siva_manasil_shakthi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5921/6537/files/sap_bpc_reporting.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0693/4688/files/nasb_bible_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1381/6995/files/namapadoxabawevuka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1053/1233/files/xevivol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7365/9290/files/fha_guidelines_property_condition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7074/9856/files/mitususapunipefoxukujepuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5220/3161/files/jopadilima.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3402/3848/files/67809595711.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 1

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_off00006524.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6524 5420 bytes
SHA-256: ce4c3ec30219c8124d57de8e163bf11b8a2ad610948bd50a144ee86024657879
font_01_sfnt_off00007778.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7778 10156 bytes
SHA-256: 5b5f23e1ad18750d74f30169ba0bd3b24b2f675acec4a5bb9b952b981eaf918b

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