Malicious PDF — malware analysis report

Static analysis result for SHA-256 b68712de1c524c9d…

MALICIOUS

PDF

32.7 KB Created: 2020-08-09 05:56:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7d1f385a650eed04eaf9d88d6c88dfde SHA-1: 5595bb73bab49c57a5b70d20bbabc9f84eccaa37 SHA-256: b68712de1c524c9dd32cd59812dc92cc57ceee53dd4909aed4f601d7339709c4
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, many of which point to a link farm hosted on Shopify. One critical heuristic identified a link to a known malicious redirector, ttraff.com, which is disguised as a career counseling questionnaire. This suggests the document's primary purpose is to redirect users to malicious infrastructure. 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.com/pify?keyword=career+counseling+questionnaire+for+students+pdf In PDF document text
    • http://files.anncapewellceramics.com/uploads/1/3/1/4/131437937/kinobuneri_bojazolevev_monafak_tabisezuj.pdfIn PDF document text
    • http://files.jwhitneyart.com/uploads/1/3/1/4/131406082/jupapuju.pdfIn PDF document text
    • http://files.sundointernational.com/uploads/1/3/1/4/131453247/2642062.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/1/0433/0687/7080/files/mapiguwidekedod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6309/9040/files/lepajukalekos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9378/4728/files/suganatujod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9956/9829/files/mekuluxosowapetawujalaxam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7656/6684/files/8984823024.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9745/6801/files/65999555723.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3470/6083/files/kevagusigesazotoku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4809/8209/files/nigivizigavuzematifirevo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1867/1512/files/pavlov_media_channel_listing.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7695/1974/files/jebogopuzo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6939/9452/files/xelikudefubow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5763/5735/files/66435556864.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004528.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4528 5352 bytes
SHA-256: 18626ac90217ae11c8453e333ceaa204560aa3aa4bc1bc69382a48879d6f4072
font_01_sfnt_off00005763.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5763 8944 bytes
SHA-256: 4286bdf9cb25e1f2fbf882c9934d53b25dc1f55fee113991a358edb7de923eec

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