Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba49d22bfe9ae9fa…

MALICIOUS

PDF

41.9 KB Created: 2020-08-04 11:51:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e584fd5d2ab2294e686d3ef823f1ec59 SHA-1: e66f265ed723328f9692693ddcee908901159377 SHA-256: ba49d22bfe9ae9fab4b210b0e4c4b5a6ceaa7c606d231dae5eebc839649f63bb
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to a redirector service (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, contains the same malicious URL, suggesting an attempt to lure users into clicking it for a supposed free download. The presence of a large number of external PDF links also indicates a link farm SEO tactic, likely to improve the ranking of the malicious redirector.

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=dysfonction+de+l+articulation+temporo+mandibulaire+pdf In PDF document text
    • http://files.historianstevecampbell.com/uploads/1/3/1/4/131453068/bc85c4ded5f.pdfIn PDF document text
    • http://files.xpdasoccer.com/uploads/1/3/2/8/132815342/4fe010511a3.pdfIn PDF document text
    • http://files.vkdistributors.co.za/uploads/1/3/1/6/131637606/vuxifedozagoso.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/1/0434/2608/7064/files/festivos_en_colombia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6550/0060/files/10992538119.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5904/3749/files/17260573627.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7730/4484/files/cooking_with_tangyoon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6380/3040/files/levuruduv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2906/1014/files/jazasujibumovego.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9671/1073/files/gimeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2417/7576/files/77785111089.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5525/9546/files/35521672975.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3683/4968/files/1290786041.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/1/0429/5216/3481/files/12910289150.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8453/0343/files/raspberry_pi_install_python_3._6.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5417/8216/files/wrist_arthritis_exercises.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_off00006424.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6424 5540 bytes
SHA-256: d4da87bb216f4a0e770978b0f01264cc81d3c012bf4639408689d83cca6baa7d
font_01_sfnt_off000076f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76F1 10328 bytes
SHA-256: fdad45ceccb778e2ec53f1e48a47d0dc62241b015f3eaccb9fd7fc4683bb1bc5

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