Malicious PDF — malware analysis report

Static analysis result for SHA-256 47b8c465e7646808…

MALICIOUS

PDF

40.6 KB Created: 2020-08-24 21:55:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e2bb19bd228b77edf815f9d227e7192f SHA-1: e8242ac5691c40eedf61d771f9ca52d49d07d93e SHA-256: 47b8c465e76468084d51d49b85b207a7ab7e16870089f3e81e0dcb96095b0dc9
234 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics indicating malicious redirector links and a link farm. The primary malicious URL identified is https://ttraff.com/pify?keyword=android+room+update+multiple+columns, which is part of a larger infrastructure of links pointing to various PDF files, many hosted on Shopify. The ML classifier also strongly indicated maliciousness. The document body contains garbled text but includes the primary malicious URL.

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.
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://ttraff.com/pify?keyword=android+room+update+multiple+columns.
  • 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=android+room+update+multiple+columns In PDF document text
    • http://files.pamlicopaws.net/uploads/1/3/0/7/130740480/ninerame-pefewamazefab.pdfIn PDF document text
    • http://buguxa.coksmspirit.com/uploads/1/3/2/8/132814084/390838e3ab0.pdfIn PDF document text
    • http://files.farmacybotanical.com/uploads/1/3/2/3/132302973/xutitogesafa-lixoreriberexik-larowuwonubola.pdfIn PDF document text
    • http://files.cerebralpalsyproject.org/uploads/1/3/0/8/130814169/ed4b1160.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/1/0429/3220/7782/files/valumikalu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5621/8780/files/assembler_compiler_and_interpreter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1042/3960/files/53476774538.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7183/1193/files/zekelubexu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/0672/1957/files/la_bella_y_la_bestia_original.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6334/5301/files/alejandro_dolina_cuentos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9664/5538/files/point_a_domain_to_a_directory_aws.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 8

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_off0000605b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x605B 5208 bytes
SHA-256: 8adbd8fadb84785794355cb8366df00c18736332715677291d068a1a3c5bcb15
font_01_sfnt_off000071ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71ED 10488 bytes
SHA-256: 74417d2a9c0559bf126d1451e0fc083f1db032faae2b88189134bbdcc125696e

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