Malicious PDF — malware analysis report

Static analysis result for SHA-256 3efd4c7cffaaebdd…

MALICIOUS

PDF

45.0 KB Created: 2020-08-23 00:15:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a20bfd96dc4b3f9498145ad85caed079 SHA-1: 34983adc349368b171f337258b6b11c406e79e82 SHA-256: 3efd4c7cffaaebddf939d02d893ff3aa61ec0d7ce8c5af42671025863e9b3f6d
214 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including one pointing to a known malicious redirector at 'ttraff.com'. The document body also contains a phone number lure, suggesting a callback phishing or tech-support scam. The presence of numerous Shopify links, some of which are benign, alongside the malicious redirector, indicates a link farm strategy to obscure the ultimate destination.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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=aiken+county+jail+report+facebook In PDF document text
    • http://files.maltipoos.org/uploads/1/3/0/8/130874278/dinuxuzoraf.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/1/0429/6219/0499/files/nivuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4165/9797/files/miss_celie_s_blues_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9430/2115/files/addition_top_it.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5949/2502/files/full_annuity_table.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5025/3992/files/54546651163.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7341/3028/files/foxopufigaxigagowirus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/5170/4469/files/math_worksheets_for_grade_7_rational_numbers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6563/0102/files/6523454500.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2949/4940/files/adform_html5_studio.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8134/3903/files/govomoxupibalevuzelapoga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1891/0876/files/osrs_dwarf_cannon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4190/7100/files/sebimowu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6396/7906/files/satezeperepuziz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9097/5647/files/45583451588.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_off00007197.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7197 5204 bytes
SHA-256: 313de01b88f11ca601a9d56bf234b31e94ef60e6a835c2142b58e2447de86df6
font_01_sfnt_off00008360.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8360 10420 bytes
SHA-256: e4eb0ba7bcb7b199f70b35e50d8f966fe4b97fcf28eeb4b7e02d0dd65d43c96a

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