Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d7a4bf86d271773…

MALICIOUS

PDF

54.9 KB Created: 2020-08-05 10:02:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d3e55777061dd1d11b1296924a4c40a8 SHA-1: 75fddcc00995f51d73708b7d0c04b7acb28ce0bd SHA-256: 0d7a4bf86d271773ec22777cb1d223188e2d025ada155dad99805c84185e5ce6
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external resources, many of which are hosted on Shopify and appear to be part of an SEO link farm. The primary redirector URL, https://ttraff.com/pify?keyword=daily+use+english+words+with+meaning+in+punjabi+pdf, is flagged as malicious. This suggests the document is designed to redirect users to malicious content under the guise of providing a free PDF download. No scripts were extracted, and the document body is heavily obfuscated, but the presence of malicious redirectors is a strong indicator of malicious intent.

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=daily+use+english+words+with+meaning+in+punjabi+pdf In PDF document text
    • http://files.vaughantractor.com/uploads/1/3/1/3/131383921/453b7de28b885.pdfIn PDF document text
    • http://files.surplushousing.com/uploads/1/3/1/6/131636988/kivimev-vofulos-wibukoxaxof-melaluvev.pdfIn PDF document text
    • http://files.ub-arts.com/uploads/1/3/0/7/130739598/lofedov-dezitawakupuna-viwevorunu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0744/1053/files/9379248699.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4123/2795/files/19457003161.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9255/7467/files/kufujaxaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2210/6271/files/bopewanig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3853/8904/files/wezinex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7923/6760/files/regukezugaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3622/9277/files/rakazuwuzedajawinubi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/4155504299.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6715/3313/files/tubadevufanojamirabapo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4609/9349/files/home_decor_magazines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3484/4059/files/xewefugiwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9353/2573/files/84822236828.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2425/9992/files/bugelurojalo.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007774.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7774 5864 bytes
SHA-256: 771ecb4b60a9f6a86b08301cf2690128d291ebfb89caaeffb1f0b7fb67c930f7
font_01_sfnt_off00008b58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B58 7776 bytes
SHA-256: 4f1ce7d1317d1b0f7d8030054a6a0c22e299d6aed75ccaacf8e11b4560b593ff
font_02_sfnt_off0000a4fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA4FD 12776 bytes
SHA-256: c8813e897f5f98b2c8e1f3f6c6c4cb5ba80ef2c3d22bfa50828040625a8abb21