Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf1075c09931002f…

MALICIOUS

PDF

55.8 KB Created: 2020-08-17 01:40:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8e9c9835fb742d7826444d706ba28212 SHA-1: 41fdc5792beb78a18a57105cbcf0133905774812 SHA-256: cf1075c09931002fc59857850e1439bac0dc5d65452d449aed52ce504420859d
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF contains a link to a known malicious redirector, ttraff.com, which is disguised as a Frontier customer service contact for reporting an outage. This indicates a callback phishing or tech-support scam lure. The document also functions as a link farm, hosting numerous other PDFs on Shopify domains, likely for SEO manipulation or to distribute further malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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=frontier+customer+service+to+report+outage In PDF document text
    • http://files.michaelchekhovcanada.com/uploads/1/3/0/7/130739202/razixaxuve.pdfIn PDF document text
    • http://xuduwug.thecastlespa.co.uk/uploads/1/3/1/4/131483281/tibaxirar.pdfIn PDF document text
    • http://files.dlrapartments.com/uploads/1/3/1/4/131454012/e205b0f16477.pdfIn PDF document text
    • http://files.ecoprowildlife.com/uploads/1/3/1/3/131384589/e5a1c733b21a.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/1/0431/6738/3713/files/autoconcepto_y_autoestima_en_adolescentes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5525/9546/files/vonizerufaxukate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9034/9975/files/vegafufigefizoleruzitu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9363/8811/files/waxapujepomovabot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/26533822031.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6137/9221/files/energias_alternativas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8706/7291/files/80867237224.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6917/6992/files/75166930538.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7962/3071/files/47505925305.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8376/7713/files/vikeleliwobedopibij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2477/6354/files/capteur_inductif_et_capacitif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7461/6472/files/mesotelioma_sarcomatoide.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

Related samples 3

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

Full JSON: related samples API

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000065cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65CF 3292 bytes
SHA-256: 2ce86876f0290710f21e41e9b6dfbbc991748b732fc76d7d5033733c3adbdbdc
font_01_sfnt_off00007196.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7196 5236 bytes
SHA-256: 91efdbff0570b3b30e521d554ae72a4be6d6262ac57f46355eca6401faf38634
font_02_sfnt_off00008353.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8353 5324 bytes
SHA-256: 4411e880505d72b84a4081f49fcb9c7d7cdee2704a11d8c2a13f36e04c58cc63
font_03_sfnt_off000095d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95D0 10864 bytes
SHA-256: d57d056d20c192265361b7021f6d34323cabefb2494cc2e410a98e7476a4a7bd
font_04_sfnt_off0000bb1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB1E 16288 bytes
SHA-256: ff90d1e695b7fcaccdb30d0fb8a94c3875794d58890850d13b7a572baac42d72

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