Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9a492aa9636ce59…

MALICIOUS

PDF

41.3 KB Created: 2020-08-21 19:27:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5e2a604c884dbccc056870d35fd1209f SHA-1: 892c77ef3987f87bd1516cb6d8ad0c8ae8a2f5e3 SHA-256: e9a492aa9636ce5993725e7895bb0b5fc3800b9a724f57c0128c0d7799e21452
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous links, many pointing to a link farm hosted on Shopify, designed to improve search engine rankings. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=alexa+app+not+working+on+android+p'. The document body, though heavily obfuscated, contains this same URL, suggesting the primary intent is to redirect users to malicious content. No scripts were extracted from this sample.

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=alexa+app+not+working+on+android+p In PDF document text
    • http://files.liggettportfolio.com/uploads/1/3/1/1/131164479/fudawarupagosazej.pdfIn PDF document text
    • http://zarodix.northraleighpc.org/uploads/1/3/2/6/132681812/37ea5.pdfIn PDF document text
    • http://files.innerpiece.nl/uploads/1/3/1/4/131453712/e88da.pdfIn PDF document text
    • http://files.bigchipsinvestments.com/uploads/1/3/0/7/130775628/fixakipabodobiwibes.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/1/0428/9835/8432/files/40369191557.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9545/7946/files/sees_behind_trees.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4241/4492/files/home_depot_christmas_tree_prices.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7708/2017/files/movies_2019_free_sites.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5340/7646/files/vokobapomumubasewonudok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4714/8950/files/brawl_stars_mod_apk_old_version.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0342/9535/files/kivomifowopugapetedegub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5785/4102/files/dadixokaguwezivitinar.pdfIn PDF document text
    • https://forums.androidcentral.com/showthread.php?t=753699&s=e7802edca813dbc2e1f93923088b37c4In 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
    • https://forums.androidcentral.com/showthread.php?t=753699&s=e7802edca813dbc2e1f93923088b37c4In 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 2

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_off000063f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63F2 5160 bytes
SHA-256: 3b9440cd297fd5ef94ac8aaa571c0012ced164959054681e025e85ce22e0adcd
font_01_sfnt_off0000759e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x759E 10168 bytes
SHA-256: e6f2a1d7e4cff1efe2478db68ee16f9175f8d538efe08f323f994250be9eb950

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