Malicious PDF — malware analysis report

Static analysis result for SHA-256 685845fba8532545…

MALICIOUS

PDF

45.3 KB Created: 2020-08-09 23:56:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c0fadfb2ca4c1959e3a07a5e958bf5ae SHA-1: d0679f3ce66690021888c6bc870b62babfbdba0e SHA-256: 685845fba8532545fe35e7196929096c07a0666b0962ac058436441e56711f1d
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file contains numerous embedded links, many of which point to a link farm designed to redirect users to potentially malicious sites. The primary redirector URL is https://ttraff.ru/pify?keyword=motor+vehicle+bill+of+sale+pdf, which is flagged as malicious. The document body, though obfuscated, contains references to a 'motor vehicle bill of sale' and includes the malicious redirector URL, suggesting a phishing or scam lure.

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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.ru/pify?keyword=motor+vehicle+bill+of+sale+pdf In PDF document text
    • http://files.allstudentsallstandards.org/uploads/1/3/0/8/130813489/zofuwegezexegopunizo.pdfIn PDF document text
    • http://files.argylltsi.org/uploads/1/3/1/4/131407435/211665.pdfIn PDF document text
    • http://files.alberfrenchflorist.org/uploads/1/3/0/8/130874067/30715.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7003/7924/files/97301859000.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8447/8632/files/battery_and_magneto_ignition_system.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5393/2966/files/fobumonegez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2790/6206/files/casio_g_shock_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1110/5183/files/healing_church_workshop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lorabo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7222/3387/files/acet_entrance_exam_reviewer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2325/4179/files/kubegujajunusaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4361/8969/files/allopathic_medicine_book_in_bengali.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2385/8850/files/arkansas_drivers_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7128/4135/files/aerospace_engineering_books_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4903/3627/files/51860488930.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 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000065e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65E4 5132 bytes
SHA-256: 23d54c699ef387be23972b0e22580bdd3350b5d67fce6dfb054c82c21480f625
font_01_sfnt_off00007775.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7775 10200 bytes
SHA-256: 9bab6253a0f08aea413c9db31e20bd08a19231a89cdb820daaf7e02f5a4daba7
font_02_sfnt_off00009a4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A4A 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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