Malicious PDF — malware analysis report

Static analysis result for SHA-256 b63fa3d1d6de3806…

MALICIOUS

PDF

35.9 KB Created: 2020-08-12 15:42:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 54c2dd162c0957957fa40632bb23e115 SHA-1: fb4ed5ca62ee43ed6e80f52773a48939c22c2ee2 SHA-256: b63fa3d1d6de3806d86c9b2d2b1eeb819b875510a26b0311e486f088d6503101
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=12th+centum+scored+answer+papers+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on cdn.shopify.com. The document body contains text related to '12th centum scored answer papers pdf', suggesting a lure to entice users to click the malicious link. The primary attack pattern involves redirecting the user to malicious infrastructure.

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.cc/pify?keyword=12th+centum+scored+answer+papers+pdf In PDF document text
    • http://files.gordonoyer.com/uploads/1/3/0/8/130813111/4ca08811bd5.pdfIn PDF document text
    • http://bimigib.eastpacificmarine.com/uploads/1/3/0/7/130776728/20b62e6a9ad75e.pdfIn PDF document text
    • http://files.desertjade68.com/uploads/1/3/2/6/132682685/5484257.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7512/5919/files/copy_assignment_operator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8450/4474/files/wojokinirepe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2252/3288/files/56995113110.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8775/7461/files/make_3d_printing_projects.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/niriliruvurufuwupaku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4244/8295/files/disusanowo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8181/7495/files/3_point_turn.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3991/5164/files/19391303120.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8763/4338/files/dalisufiponejulomadinawa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8861/8396/files/ditozijukexofusuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0679/4656/files/l_urbanisme_utopies_et_ralits_une_anthologie.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 7

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004175.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4175 5376 bytes
SHA-256: 18aba928d59c47b80d5438a25619fbf37fc10e7135aff4b90a32a991dbd233ee
font_01_sfnt_off00005394.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5394 10128 bytes
SHA-256: 3c439d8ec077c9c671c3948dc1b2f951ee20aef7acdb52e377daa726b2bffcfd
font_02_sfnt_off0000746e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x746E 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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