Malicious PDF — malware analysis report

Static analysis result for SHA-256 9bac7d3d4e7546f2…

MALICIOUS

PDF

43.0 KB Created: 2020-08-17 05:29:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e2c784477649f879b422f73f853cf4ca SHA-1: 2714525cb089d058e9e8560a1914d81392e1c6d5 SHA-256: 9bac7d3d4e7546f2c2851a36c984bd47d93b9c1f5121b01c6c6b9152066fb349
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=best+professional+answering+machine+messages'. This indicates a phishing or social engineering attempt. The document body also contains this URL, reinforcing the lure. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to distribute the malicious content. No scripts were extracted, but the primary attack vector appears to be the malicious URL embedded within the document.

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=best+professional+answering+machine+messages In PDF document text
    • http://files.benevit.org/uploads/1/3/0/7/130776518/a080a28e.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/1/0430/3791/7345/files/rabodarog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8651/9203/files/79283340885.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2836/3939/files/gowuguvubopukaxumavure.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3656/3866/files/how_to_setup_blue_snowball.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6909/3541/files/ketez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9513/7187/files/neon_trees_animal_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1048/9496/files/beat_it_tab_solo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4850/8311/files/battery_university.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5152/4008/files/89318995367.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7056/3239/files/penyebab_amenore_sekunder.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1375/9395/files/beedi_scholarship_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6294/2101/files/financial_accounting_multiple_choice_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2353/2195/files/pujavexesininerifux.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 2

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_off000068ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68AD 5568 bytes
SHA-256: b017909a29a735b8080ace95fd6893fe0e57a8d51c1ea373347391ccdb9a8df1
font_01_sfnt_off00007b88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B88 10424 bytes
SHA-256: 851499beebfb8a35f865c7fa3dd907cc4575a84af4c71ecb55e4254d4c89f2e9

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