Malicious PDF — malware analysis report

Static analysis result for SHA-256 00ef9ff34256e9ea…

MALICIOUS

PDF

41.0 KB Created: 2020-08-13 23:46:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 11a2ff90929f66cf5abb5b4f934be8f5 SHA-1: 4aca48c889014e19a4ad98410f34e027e9cf36e1 SHA-256: 00ef9ff34256e9eaef7a1ce7fb7c220edade5b82e6e2a6cbab792b6424904f67
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating malicious redirection and link farming, specifically pointing to a redirector URL that is also present in the document body. The presence of a 'download button' lure and the ML classifier's high confidence score further support a malicious intent to redirect users to potentially harmful content.

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=eating+disorder+powerpoint+template+free In PDF document text
    • http://poduv.crystalsgymnastics.org/uploads/1/3/0/8/130873995/3794328.pdfIn PDF document text
    • http://vopez.wintersranch.com/uploads/1/3/1/3/131383657/rijipideminep_kezeweziremuper_dosexonomo.pdfIn PDF document text
    • http://labafit.caringbyconnection.com/uploads/1/3/1/0/131070109/gewev.pdfIn PDF document text
    • http://kesin.fnqtropicaldancefestival.com/uploads/1/3/0/8/130814328/2748138.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1814/1347/files/73398530606.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3740/0999/files/mikenota.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8099/1388/files/what_does_the_sims_3_generations_include.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4923/8178/files/our_ecological_footprint.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0200/3609/files/bososexakujujuzadufitul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2270/4030/files/3565822702.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5795/5494/files/beginning_consonant_blends.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6346/6389/files/88185807647.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2412/9952/files/94743748908.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6627/8556/files/33258690288.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005495.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5495 5200 bytes
SHA-256: a6a0024768cf6d2e68598153dcd0aef5c8546f674d1d7532c597518de052f387
font_01_sfnt_off0000663e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x663E 10128 bytes
SHA-256: 8faf83f501990129ca45c26d019dcafe9cc4a1f0561de7343aeed5c647f6463a
font_02_sfnt_off000088f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88F3 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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