Malicious PDF — malware analysis report

Static analysis result for SHA-256 b884e95c37dfe2fa…

MALICIOUS

PDF

38.0 KB Created: 2020-08-15 01:33:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 531ef2e30df3a1df1b501b7f18b5d2eb SHA-1: c4e23ab366badb2231e784f192954d9afd4550c6 SHA-256: b884e95c37dfe2fa4de5822fce1ea732a52054689cb99b75de746cf5f1d8a6ae
194 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, embedding numerous external links, many of which are hosted on Shopify. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is likely the primary malicious component. The document body contains garbled text and a URL that appears to be the same as the malicious redirector, suggesting an attempt to disguise or deliver malicious content through a lure document.

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=ap%20panchayat%20raj%20act%201959%20in%20telugu%20pdf In PDF document text
    • http://wojif.pretenation.com/uploads/1/3/1/0/131070420/tosode.pdfIn PDF document text
    • http://files.imaginebetter.shop/uploads/1/3/0/7/130775306/57b878.pdfIn PDF document text
    • http://nifejinij.wethammockfarm.com/uploads/1/3/1/8/131856177/6270512.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/1/0436/3550/7358/files/40000833070.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7997/5590/files/parerigulux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9411/3446/files/contract_termination_letter_sample.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/28821374719.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6309/9040/files/lepajukalekos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1334/0312/files/abroad_times_newspaper.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3049/4878/files/ramenerumiwesiwefixuraxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1992/7713/files/godzilla_game_pc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4492/9690/files/56579150258.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5188/4445/files/falorolelo.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_off00005585.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5585 5740 bytes
SHA-256: e7eaaa965be9435d21920137d7bf647ab94eb82c349d5ba72c1c6c3d9c326a96
font_01_sfnt_off0000691e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x691E 9992 bytes
SHA-256: b998251a3efba50417dde2acad6700064cc139fef430ff2150c8d4b3423ef227

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