Malicious PDF — malware analysis report

Static analysis result for SHA-256 f782ae04838def37…

MALICIOUS

PDF

49.7 KB Created: 2020-08-12 19:43:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8b94c6dc863d4af3fc889fbce09a98d8 SHA-1: 269f67b0a484adfa3c1eef644d6673c28f1f9267 SHA-256: f782ae04838def3789230da8f66fef009bd799c60ca66206e577300b45d617a1
194 Risk Score

Malware Insights

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

The PDF file contains a mass external link farm, with a primary link pointing to a known malicious redirector at 'https://ttraff.cc/wb?keyword=kaddish%20prayer%20pdf'. This redirector likely leads to further malicious content or phishing pages. The document body itself is heavily obfuscated but contains references to the redirector URL, confirming its presence within the document content. The presence of numerous links hosted on cdn.shopify.com, while some are confirmed benign, suggests an attempt to blend malicious links with legitimate-looking ones.

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/wb?keyword=kaddish%20prayer%20pdf In PDF document text
    • http://noziva.brisenodds.com/uploads/1/3/2/8/132816066/8282708.pdfIn PDF document text
    • http://rakitiz.orchardstreetmusic.uk/uploads/1/3/0/9/130969060/simed-dusazewi-gikenug.pdfIn PDF document text
    • http://files.slumberadventures.com.au/uploads/1/3/1/1/131164431/1fb44b.pdfIn PDF document text
    • http://files.mhlff.org/uploads/1/3/1/6/131607407/9967529.pdfIn PDF document text
    • http://files.mrstutsmathclass.com/uploads/1/3/1/8/131871980/nalawibi.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/1/0437/5163/7141/files/dotumem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/42632515291.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8921/3093/files/xipamikogosejazavonurawep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3905/5258/files/sadulenufopusogiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6626/0642/files/80656341557.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3134/6856/files/71325696151.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1026/8064/files/46897955010.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7451/9191/files/27637333242.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6294/2106/files/89164516795.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6422/2101/files/travel_form_vs_mount.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0556/6366/files/jumubupajejifaleta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3937/5012/files/hgec_better_bouncing_boobs_hcup_ecup_dcup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2514/5760/files/phonetic_table_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0119/2352/files/46221891452.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_off00007b92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B92 5168 bytes
SHA-256: 6b1317db254c1b244c59373aff21079d22baff7e10c5491995ffa47d154b5ab1
font_01_sfnt_off00008d30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D30 14188 bytes
SHA-256: ea1a6b3a3ef4697b8983b4ccf21de735e64896b52001128f5f3df746514e2c2d