Malicious PDF — malware analysis report

Static analysis result for SHA-256 bdeb3cd8ddef0bfc…

MALICIOUS

PDF

44.0 KB Created: 2020-07-28 10:06:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 65acba5267592efe56e6844a721e50a5 SHA-1: 4b2d079ab17a097e899aa905b81d9fb51690f493 SHA-256: bdeb3cd8ddef0bfc01f3068f7dbfb9d3e38db4b66ffeab3f8d0ffae4b4e71ced
194 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating it links to known malicious redirector infrastructure and functions as a link farm. The embedded URL points to a redirector designed to lure users with a keyword related to business reports. While the document body is heavily obfuscated, the presence of these malicious links strongly suggests a phishing or malware distribution attempt.

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=manuscript+format+business+report In PDF document text
    • http://files.dcsq.org/uploads/1/3/1/3/131383630/kixogibotovex_sepajemusarad.pdfIn PDF document text
    • http://files.actingcoachlasvegas.com/uploads/1/3/2/6/132681566/lejele.pdfIn PDF document text
    • http://files.karmicfreedom.com/uploads/1/3/1/4/131407965/zipadupa.pdfIn PDF document text
    • http://files.domyarnell.com/uploads/1/3/0/9/130969656/9682809.pdfIn PDF document text
    • http://files.franklinyouthfootball.org/uploads/1/3/0/8/130874350/gadenelokasu_tuxuka.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/1/0430/1357/0709/files/48673099618.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8851/9080/files/xopolodubimowigebo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0501/7255/files/debijoxetisiburumeba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6773/4176/files/58267670384.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4389/5966/files/80076626035.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8476/6620/files/gekaxolevozajiwosevasifej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2349/0457/files/tukakuti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6842/3334/files/zubosisudukemowizinabano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5576/6942/files/9262093044.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_off00006f54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F54 5156 bytes
SHA-256: 5f959cb99b08bec914e76372a0a173fc3820d465dd73addc22a0f6ff46861e2d
font_01_sfnt_off000080bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80BF 10040 bytes
SHA-256: ef34aa092929ec78d5d9dce66f6b1fa5813dc776a518cd530e76ba8ffa925834

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