Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7403c17b77deb23…

MALICIOUS

PDF

45.2 KB Created: 2020-08-18 16:11:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 2054f40cfe6739429f46bed3cd93678c SHA-1: 3f4168f8f484661e8a20139e301ab374ac005bcb SHA-256: f7403c17b77deb23a2fbf73685d7340192e840f3feef13f6164264e50e4062cb
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document exhibits characteristics of a link farm, embedding numerous URLs that likely lead to malicious content. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically identifies a link to a known malicious redirector, ttraff.cc, which is a strong indicator of malicious intent. The ML classifier also strongly flagged this PDF as malicious. The embedded URLs suggest a phishing or malware distribution campaign.

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=esmo+guidelines+nsclc In PDF document text
    • http://files.jacquiesewell.com/uploads/1/3/0/7/130739177/kufipapagitogamurege.pdfIn PDF document text
    • http://files.hcindiansbasketball.com/uploads/1/3/1/6/131606367/sufobogem.pdfIn PDF document text
    • http://gatoz.chathamhigh1969.com/uploads/1/3/2/6/132681396/f923795.pdfIn PDF document text
    • http://files.beckywrightsongs.com/uploads/1/3/1/4/131454733/3838646.pdfIn PDF document text
    • http://baligunix.monarchroom-traumainformededucation.com/uploads/1/3/0/7/130739564/mimovununozuwo.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/1/0432/6470/4665/files/57133939816.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6053/5196/files/69843072863.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7214/4038/files/visimatuvugilega.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2976/6045/files/bach_magnificat_score.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5856/9115/files/lipubabi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9484/3293/files/jizalopibomidivexuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2014/7112/files/35557919056.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9700/5981/files/spandana_application_form_telugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9496/6429/files/nizasegomalom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/2792/5925/files/veguneribamope.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tugogesobiwem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4550/2626/files/83715258432.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 5

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_off00007449.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7449 4912 bytes
SHA-256: c4efa32354bf3b22d82f905814687c3a2dab1b905f2e79fff11af43a46c6a57a
font_01_sfnt_off000084ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84ED 10288 bytes
SHA-256: f0c692b0330c1f4b4692158ecc492dab187b68c166d29213fc77d7a9e65e96a4

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