Malicious PDF — malware analysis report

Static analysis result for SHA-256 b330eddf96034a00…

MALICIOUS

PDF

35.5 KB Created: 2020-08-23 09:53:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b36c14b0ca87846a2606fec15f378138 SHA-1: 96614d6e412632d47db745db5d80b193f2dfb71c SHA-256: b330eddf96034a00a743e136ebde60e99494a1ce38ba1013c3127cf64a5512ba
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple heuristics indicating malicious redirector links and an SEO link farm. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector found in the heuristics. This suggests the document is designed to trick users into visiting a malicious website, likely for phishing or malware distribution.

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.ru/pify?keyword=online+video+er+cc+converter In PDF document text
    • http://files.allans-automobiles.com/uploads/1/3/2/7/132740182/lifavimeluzuju_sawegutatakida.pdfIn PDF document text
    • http://gifamenin.mundaringpoolcare.com/uploads/1/3/0/9/130969757/3645238.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/1/0435/1790/3008/files/difference_between_hygiene_and_sanitation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0401/0389/files/chordates_classification.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1546/1285/files/center_a_button_bootstrap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6874/2040/files/36514143009.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6665/3858/files/battleeye_initialization_failed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/4413/2248/files/36685469586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4170/2567/files/43118791662.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0722/1670/files/dixenirodiropobin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9620/2659/files/54240074173.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_off00004ec9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4EC9 4632 bytes
SHA-256: e009b0aa2863f688ced873243be2ab93916151ebf725143aac54a9d719281f15
font_01_sfnt_off00005e98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E98 10232 bytes
SHA-256: ba1d5e4505e867faac7d69b132f6d52b2c40f3436a5b1d2dbca7ce4f7076775a

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