Malicious PDF — malware analysis report

Static analysis result for SHA-256 a65a0ff00ff4e4e3…

MALICIOUS

PDF

32.7 KB Created: 2020-08-08 15:32:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8a1e01e868868979ab91384af3526d14 SHA-1: 29c74a45932169e776b3607a841f53d7603d3d91 SHA-256: a65a0ff00ff4e4e3e436bc91f94ad4edaba5f6443ce47fd2197bd58500f340bd
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external resources, indicating a link farm or redirector strategy. The primary link, 'https://ttraff.com/pify?keyword=building+construction+illustrated+free+pdf+download', is identified as a malicious redirector. The document body, though heavily obfuscated, contains this URL and other Shopify links, suggesting a lure to download content. No scripts were extracted from this sample.

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=building+construction+illustrated+free+pdf+download In PDF document text
    • http://files.ecosystemarts.org/uploads/1/3/0/8/130874474/pamujoduwut-melixanogob-toguwapi.pdfIn PDF document text
    • http://vuwum.therosievida.com/uploads/1/3/2/6/132695569/f5cc5850bf0dd.pdfIn PDF document text
    • http://files.offthefrontporch.com/uploads/1/3/1/4/131406258/giwome.pdfIn PDF document text
    • http://jonowa.ottercontrol.com/uploads/1/3/1/4/131437987/tiwiroximajiweme.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/1/0437/2761/8209/files/bawiliwugojixuluweva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2724/9826/files/biology_book_by_miller_and_levine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7732/0348/files/28051598964.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0083/9842/files/english_synonyms_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8978/7048/files/rca_tube_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5417/8216/files/55183075.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2273/7830/files/490977654.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5547/1002/files/selapufibolenugob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3365/7507/files/29699083200.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5971/4971/files/chemistry_notes_on_acids_bases_and_salts.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6854/5442/files/pujivejugabufuvewowawu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2478/4292/files/16186215027.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1731/2152/files/70544843214.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 4

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_off000045aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45AA 5464 bytes
SHA-256: 9fad8211e026a4458a41b454181f7f30da3f216dfe4be51e59a0df377aac70bf
font_01_sfnt_off00005866.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5866 8600 bytes
SHA-256: 69f0ce9d5d941828c9e77cb87b5c0ec6b6991d955650e8ab7c5d14f14ab3aa1c

Open this report in the interactive analyzer, or submit your own file for analysis.