Malicious PDF — malware analysis report

Static analysis result for SHA-256 fce6c717574c31cb…

MALICIOUS

PDF

52.8 KB Created: 2020-08-16 15:53:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cce5c21ca28a206a7bb00f16fea99828 SHA-1: 8bb902a115b72ef735e19a666195e74d5053d6c0 SHA-256: fce6c717574c31cb7352bc52cb8e8b4c32351df46c9473411004c125a153e3d7
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to known malicious redirector infrastructure (ttraff.ru), and another flagged a link farm strategy. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=ssc+part+1+marksheet+2019+karachi+board', suggesting a lure to a malicious site disguised as academic content. No scripts were extracted from this sample.

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.ru/pify?keyword=ssc+part+1+marksheet+2019+karachi+board In PDF document text
    • http://files.summitlakewi.org/uploads/1/3/1/0/131071043/moputexokuwilosukaz.pdfIn PDF document text
    • http://files.asproengineering.com/uploads/1/3/2/6/132695832/077f708a6dd.pdfIn PDF document text
    • http://files.bookrackpeoria.com/uploads/1/3/1/6/131606803/7395551.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/1/0431/0417/4233/files/baccho_ki_kahani_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1310/2998/files/kevenixomomakanewitix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1682/0648/files/how_to_check_your_coordinates_in_minecraft.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7023/4524/files/82660535259.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6713/6408/files/4749868699.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9197/5580/files/27226005880.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4132/3170/files/michelle_mu_c3_b1oz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4441/3341/files/8439018038.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4434/7799/files/sajijaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5777/3718/files/paras_civil_code_obligations_and_contracts.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1359/3499/files/xoduju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3929/3589/files/building_engineering_and_systems_design.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_off000082f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82F2 6072 bytes
SHA-256: 8acc102421e8b61e75f014e86de7a3448a3e030720a19644ed242cca280bb4e1
font_01_sfnt_off00009764.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9764 15112 bytes
SHA-256: 12088ead0a9838fc4a0bf4fec906d1944a696e5badd96a93743649f429b9735b

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