Malicious PDF — malware analysis report

Static analysis result for SHA-256 904de8a1575f6dbd…

MALICIOUS

PDF

59.2 KB Created: 2020-08-05 17:30:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d2addc856a5d006431c9c0dd1f75da5b SHA-1: 18d653d767c96d44f1b9322d42901df4555e9802 SHA-256: 904de8a1575f6dbdc3637e6c5f1ad1635f56a588fd38662b325b9b58634f69ad
202 Risk Score

Malware Insights

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

The PDF contains a high number of embedded links, many pointing to Shopify domains, but one critical link redirects to a known malicious domain (ttraff.cc). This suggests a link farm or redirection tactic to obscure the final malicious destination. The presence of a 'download button' heuristic further supports the lure-based attack pattern. The document body, though heavily obfuscated, contains the suspicious URL, reinforcing the redirection attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=simple+past+tense+story+exercises+pdf In PDF document text
    • http://files.db-trends.com/uploads/1/3/0/8/130874317/a5d939743657f.pdfIn PDF document text
    • http://files.tlkventures.com/uploads/1/3/1/4/131409309/abad310af.pdfIn PDF document text
    • http://rowati.elevatecommunitychurch.com/uploads/1/3/1/4/131482952/715137ad10f.pdfIn PDF document text
    • http://files.paulsvalleyartscouncil.org/uploads/1/3/1/6/131607163/sonobixiliregijub.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/1/0433/0687/7080/files/93515438816.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fakuwonilojovaxibudebu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6749/8911/files/jusuponemomi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9956/2911/files/xosenafiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5570/9351/files/tony_little_gazelle.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3772/0733/files/90528588216.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9094/3904/files/gapuvuvekivugubomenakirod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6975/0940/files/git_merge_squash.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7375/7603/files/pupiwisigojelumofexog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2009/9488/files/sosanabibo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2208/8354/files/tavapu.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 1

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_off0000aa22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA22 5572 bytes
SHA-256: f83967fca3a5b35e5198207b15296405c10672ce563e0e6ed0da8a6f9994a8c3
font_01_sfnt_off0000bd08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD08 10260 bytes
SHA-256: 18909f84f15e3b428c0be367911045ebf48af91e5dae7adae760359c00d84ad5

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