Malicious PDF — malware analysis report

Static analysis result for SHA-256 970ea0cc1c5bd020…

MALICIOUS

PDF

37.1 KB Created: 2020-08-03 15:22:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f9cab1d46a12064d2ee48b41f567e48f SHA-1: c3a257b3f78015e23394ee8eee37fa197a387d6c SHA-256: 970ea0cc1c5bd020965f88edbea11d4db51bcd4f9315a674279b421512bc4e38
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, with one identified as a malicious redirector. The document body, though partially corrupted, includes the URL 'https://ttraff.cc/pify?keyword=characterization+of+nanoparticles+intended+for+drug+delivery+pdf', suggesting a lure to a malicious site. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of links, likely for SEO manipulation or to obscure malicious destinations. The ML classifier strongly flagged this PDF as malicious.

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=characterization+of+nanoparticles+intended+for+drug+delivery+pdf In PDF document text
    • http://files.robertrosell.com/uploads/1/3/0/7/130774990/wokajarux.pdfIn PDF document text
    • http://files.fernwehfeels.com/uploads/1/3/0/8/130874102/jijelimixu-ziburaviwiju.pdfIn PDF document text
    • http://files.saltydogtactical.com/uploads/1/3/1/8/131871605/76734089d599633.pdfIn PDF document text
    • http://files.pacificcountyyouth.org/uploads/1/3/1/4/131438323/860604.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/1/0434/6114/8837/files/90599217535.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9176/8984/files/coyote_ugly_songs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9212/4572/files/vusurokilajex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0577/1929/files/93476511589.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2865/8848/files/dedidano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8043/3302/files/xray_ultimate_texture_pack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4925/5061/files/49640526481.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8768/4003/files/rasuzelexodibujobobifel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2768/5799/files/komababuwanitifi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1785/4373/files/92839950432.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3729/4754/files/12585224921.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 6

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_off00005264.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5264 5536 bytes
SHA-256: 735be052a4a6e1437748079f9280253ba0c768d6abded3b535d2b482ef5aa57f
font_01_sfnt_off00006546.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6546 9852 bytes
SHA-256: 7ed88336fe6fb0b92ec75915903e05425027514706f5f7d6007079f4fb0a23c5

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