Malicious PDF — malware analysis report

Static analysis result for SHA-256 7547d07c354d1c0b…

MALICIOUS

PDF

40.3 KB Created: 2020-08-20 12:32:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4b2265a034ca23a6249c5b14b4de0ddd SHA-1: 09e47c50dc89fead4fc11c76862b49a8885f30fe SHA-256: 7547d07c354d1c0b371472e6f339b4c67e060ed0238f71013438bb74c1622af6
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, many pointing to redirectors and SEO link farms, indicating a phishing or malicious content distribution attempt. The primary redirector URL is https://ttraff.cc/pify?keyword=analogy+questions+pdf, which is flagged as malicious. The document body, though heavily obfuscated, contains text suggesting it is related to 'Analogy questions pdf', likely a lure to encourage clicks. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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=analogy+questions+pdf In PDF document text
    • http://files.qalimayu.com/uploads/1/3/0/9/130969801/rowomenerotif.pdfIn PDF document text
    • http://files.fungusfanaticus.com/uploads/1/3/1/3/131381721/18bb6527d122434.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/1/0436/7423/9129/files/38946547105.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7044/0095/files/303018125.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5797/9304/files/6620148127.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0968/7208/files/nupiravutu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1057/7816/files/72763741039.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8286/6083/files/divixif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1231/6584/files/mukow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6255/0940/files/gaxajitinumeve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6828/3294/files/tofepiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mizamolapo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6646/6216/files/alternating_current_class_12_questions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5346/6271/files/sigesituwizexiranixino.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 1

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_off00006016.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6016 5328 bytes
SHA-256: 03680eb47ddd5e8d47b3ecc30e57a38f3091789831e2f58e777e77af8d53b768
font_01_sfnt_off00007250.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7250 10068 bytes
SHA-256: e79b641db48f5f17a19f8a1753a5e3b149a3f5afef51323ce64fbe200cb2929f

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