Malicious PDF — malware analysis report

Static analysis result for SHA-256 8867def571619a1f…

MALICIOUS

PDF

47.7 KB Created: 2020-08-25 22:00:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 16a967febe3d53826536b880dbd6d04b SHA-1: 6cc43d3249f3faca84dc3b1eecb40f053bc665be SHA-256: 8867def571619a1f1d0b12cdb370d8d49e102442419ef1f66e515211935ce69f
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a known malicious domain, ttraff.cc, disguised as a service manual download. This indicates a phishing or malware distribution attempt. The ML classifier strongly supports the malicious verdict, and the presence of numerous external links suggests a link farm for SEO manipulation to attract victims.

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=2003+ford+f150+service+manual In PDF document text
    • http://maberofoj.mappingdisgust.com/uploads/1/3/0/8/130874284/1061168.pdfIn PDF document text
    • http://files.jamminforjaclyn.org/uploads/1/3/0/7/130774999/zerupiliduvijafop.pdfIn PDF document text
    • http://files.shbshowpigs.com/uploads/1/3/0/8/130874332/mefapumes.pdfIn PDF document text
    • http://topoxew.theartistinyourshoes.com/uploads/1/3/1/4/131453045/pijujoluxizimudaf.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/1/0428/9835/8432/files/93527538138.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0127/3750/files/coeliac_disease_review_articles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3431/1845/files/zuketipapuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0466/5321/0789/files/badshah_movie_hd_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8812/4829/files/pancreatic_anatomy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2381/1239/files/medical_journal_abbreviations_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6909/5590/files/answers_to_nyt_crossword_puzzle_0112.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5495/5672/files/aua_guidelines_renal_mass_active_surveillance.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5083/5876/files/catia_v6_full_crack_64_bit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8378/3575/files/17721293628.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/7866/7688/files/makita_3612_router_edge_guide.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
🗂 Part of campaign: seniorservicesofswfl.com 4 samples

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_off00006d8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D8E 5744 bytes
SHA-256: 8d16eea613159d112d659eb8db4b41f041e37d00a5213646688a0c58b6b41dbc
font_01_sfnt_off00008105.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8105 15100 bytes
SHA-256: 2547b5f693dac8b4648bd9f394ad83c51c3293407f6dbf57cb25b493a4d318b8

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