Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8478095d12398bd…

MALICIOUS

PDF

40.3 KB Created: 2020-08-20 00:27:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 85af5305a580a688d6d12b759f4e7120 SHA-1: 6703fe6c852942d6214a25b352945d37d1ffafad SHA-256: f8478095d12398bd78c2515009b35cd6087c9ac9c988fdf2527ce7365824d7ee
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, a common tactic for SEO poisoning or redirecting users to malicious sites. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is presented in the document body as a 'score sheet'. The presence of a large number of external PDF links, many hosted on Shopify, suggests an attempt to manipulate search engine results or distribute content through a seemingly legitimate platform. The document body itself is heavily obfuscated but contains the malicious URL.

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=score+sheet+usa+volleyball In PDF document text
    • http://liran.cefmiwaynecounty.com/uploads/1/3/0/7/130740117/nosaduzowuden_kumafe_zapajovol.pdfIn PDF document text
    • http://files.trinityau.com/uploads/1/3/0/8/130874205/6173015.pdfIn PDF document text
    • http://files.humanehomesnc.com/uploads/1/3/1/4/131438059/wukidoje-juwimi-xosojaboj.pdfIn PDF document text
    • http://files.dsldaquascapes.com/uploads/1/3/0/8/130814308/911504c3aed.pdfIn PDF document text
    • http://files.adrian-werum.de/uploads/1/3/1/0/131071056/paseri.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/1/0429/1634/8057/files/devuxabosuzenirodajarasis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1903/5033/files/bruchrechnen_erklren.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4256/9383/files/autismo_leve_en_nios.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6599/7472/files/nonisufotise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6640/6552/files/64013044353.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9429/4171/files/fikovutinisigoduja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3296/1443/files/bhagavad_gita_chapter_17_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6078/1465/files/zuxisafukijapimoxitefudi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6419/7273/files/ballade_pour_adeline_piano_sheet_music_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6842/3334/files/pavaniloxamo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8794/6143/files/legarozemekifibokax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/14074967722.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2992/8872/files/pulufevavoxabeles.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005570.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5570 5292 bytes
SHA-256: e2bc174cfd9f1ece0d18dc9036a69c3204f8e311bfdeabfa725b08b886857d1a
font_01_sfnt_off0000676c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x676C 14288 bytes
SHA-256: d3b0567f0c955835477658307bf5ae050bfba47027afa0d812342baaf539cd70