Malicious PDF — malware analysis report

Static analysis result for SHA-256 554f7e37a7919c90…

MALICIOUS

PDF

42.4 KB Created: 2020-08-12 12:32:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4fd3e1505a5555187f0762f66e2fc88c SHA-1: 47063fdc3f6aac289cb3845184f4eee32ba7fcb8 SHA-256: 554f7e37a7919c90c62e0c503ef4ee29957637c7d78163df5be7c1ba2e9cf875
194 Risk Score

Malware Insights

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

The PDF contains a lure related to 'CTET answer key download' and embeds multiple links. One primary link, 'https://ttraff.com/pify?keyword=ctet.+nic.+in+answer+key+2020+pdf+download', is identified as a malicious redirector. The document also features a link farm, directing users to numerous other PDF files hosted on various domains, including several on Shopify. This suggests a phishing or scam attempt using SEO-poisoned links to distribute malicious content.

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=ctet.+nic.+in+answer+key+2020+pdf+download In PDF document text
    • http://files.wonderpin.com/uploads/1/3/1/6/131637362/feligizibab_bikajegirob_titit_julen.pdfIn PDF document text
    • http://files.neverlostestore.com/uploads/1/3/0/8/130874204/maniduwasup_wupudoserofi_divekoxusenonis.pdfIn PDF document text
    • http://files.townsquareplayers.org/uploads/1/3/0/7/130739107/df487ef55025210.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/1/0437/7870/3521/files/ssc_marksheet_download_maharashtra.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4532/8808/files/77163971889.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1121/1417/files/accuweather_minot_nd.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6509/5845/files/45407714268.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5494/0828/files/74519383715.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4323/9589/files/jojasefewuxet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5782/3390/files/cross_domain_tracking_google_tag_manager.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7874/6261/files/29595309872.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2802/7304/files/arquitectura_de_computadoras_parhami.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4333/2000/files/pathfinder_bestiary_pdf_download_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4257/0401/files/toe_kick_saw_lowes.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 8

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_off000065de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65DE 5616 bytes
SHA-256: f9863536f124ee02328acd9dbcd5ac8d843ff94c2c2f26ceed8139bd19d948a2
font_01_sfnt_off0000792d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x792D 10548 bytes
SHA-256: cd7c190fd6d3288f32355460ba756b0ff1dbdb0ee574a5b02859702da01985ae

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