Malicious PDF — malware analysis report

Static analysis result for SHA-256 3133753071f68a4d…

MALICIOUS

PDF

39.0 KB Created: 2020-08-24 15:02:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 69119eb43c27fe50d65ddc17b56d6a0a SHA-1: e89acc5c23af34f82adf0f916985d34504bff6f3 SHA-256: 3133753071f68a4d16d4cde1fc818342206c9ed7f2dc053b159fe41c40217654
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a critical redirector link pointing to ttraff.com, which is known malicious infrastructure. The document body, though heavily obfuscated, contains the URL https://ttraff.com/pify?keyword=ccna+ebook+pdf, suggesting a lure to download a fake ebook. The presence of numerous other PDF links indicates a potential SEO poisoning or link farm strategy to distribute malicious content.

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=ccna+ebook+pdf In PDF document text
    • http://files.deeperwalkoffaith.com/uploads/1/3/0/8/130874620/tiwufokigatizez.pdfIn PDF document text
    • http://files.fortdavisalabama.com/uploads/1/3/0/8/130874029/tapubisiwemarexikos.pdfIn PDF document text
    • http://jaminutol.charlemagnemilitaria.com/uploads/1/3/1/6/131607305/4071151.pdfIn PDF document text
    • http://files.burrisdevanney.com/uploads/1/3/1/4/131407164/wijokexofap.pdfIn PDF document text
    • http://nisuli.pjcsoco.org/uploads/1/3/2/6/132680813/kopukowew_tofesosa.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/1/0428/7827/1641/files/75666415693.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1632/1184/files/vigivibabizujidatagijen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0337/8839/files/pink_floyd_breathe_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/44758106853.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0645/2131/files/capitalismo_y_socialismo_diferencias.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/1676/8923/files/how_to_advertise_discord_server.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9525/2374/files/64323249536.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4052/8792/files/remipewi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3850/6146/files/fast_fletching_guide_rs3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4703/3752/files/child_development_and_pedagogy_book_free.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 7

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_off00005ad0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AD0 4952 bytes
SHA-256: 0ea71c32e2ab42ccd4232c433082ad4f8af6ef786a59c2684c43a6ed446b4008
font_01_sfnt_off00006bae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BAE 10552 bytes
SHA-256: 0d0ffec6decc35827c8659c9e4047bae5f8226787c0027181e05b22c0d7b1c35

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