Malicious PDF — malware analysis report

Static analysis result for SHA-256 53da7136e5ca043d…

MALICIOUS

PDF

40.1 KB Created: 2020-08-20 08:16:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8552d649daf4702aa5afb5fa4103b02c SHA-1: e980de5f2c0206d2c0ccf4b60e96142d0a727594 SHA-256: 53da7136e5ca043d2f14df89d318e106bd16211f5ba3f27db8fb70a62ce6cf9e
202 Risk Score

Malware Insights

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

The PDF contains a lure related to 'Airtel tv apk file for mi tv' and includes a call-to-action button. A critical heuristic identified a malicious redirector link pointing to 'ttraff.cc', which is used to deliver the payload. The document also hosts a large number of external PDF links, many of which point to benign Shopify URLs, suggesting a link farm SEO tactic to improve search engine ranking for malicious content.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=airtel+tv+apk+file+for+mi+tv In PDF document text
    • http://files.goldrushdispensary.com/uploads/1/3/2/7/132740377/pakesudukisamed.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/1/0436/5742/9145/files/descubre_1_leccion_7_crossword_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1236/6231/files/61575990550.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1231/6584/files/36471463350.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4768/1181/files/test_de_capurro_y_apgar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4424/9499/files/texte_allemand_facile_avec_questions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5045/0600/files/49030521797.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/95181885481.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/53522836856.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4788/4699/files/vimogoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6934/8763/files/fate_of_pyruvate_under_aerobic_and_anaerobic_conditions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9269/5458/files/kifosupuzilabonavoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0622/0697/files/73158640113.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1618/3198/files/95964980951.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/6345/6423/files/java_tutorial_free_download.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 2

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_off00005fdb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FDB 4984 bytes
SHA-256: daa3b91bbdc3ee27555ebdafe2687cc0ba81bfdc11aa9e531f6b80225ca89bef
font_01_sfnt_off000070c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70C0 10084 bytes
SHA-256: 59f2a304f2ee2a0792d8fb089d2f19c662b2a4ae6b6e26e8d4be7d4dbbb2f962

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