Malicious PDF — malware analysis report

Static analysis result for SHA-256 346b49cc026bb96c…

MALICIOUS

PDF

66.5 KB Created: 2020-08-04 03:17:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ce9bf9663e9bb20ca29fbb8083ae52cf SHA-1: 7001253b87a504d61412a7577e82aef3310252e0 SHA-256: 346b49cc026bb96c018dc0ad4293ed0b7579f345f6f2fec9263bb42ec39ed3cb
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirection and a link farm, with a primary URL pointing to a known redirector. The document body, though heavily obfuscated, contains the same redirector URL. The ML classifier strongly indicates maliciousness. The presence of embedded URLs and the nature of the heuristics suggest an attempt to drive traffic to malicious or SEO-manipulated content, potentially as a phishing lure.

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.ru/pify?keyword=character+analysis+example+pdf In PDF document text
    • http://files.releasemystress.co.uk/uploads/1/3/1/3/131398362/5bd8362246815.pdfIn PDF document text
    • http://files.radmanusa.com/uploads/1/3/1/4/131482976/janununan.pdfIn PDF document text
    • http://files.purplepandaglitter.com/uploads/1/3/1/1/131163976/5490222.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/1/0427/7154/6279/files/xoxarewofabedil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2814/2501/files/garoxapupilosixi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7842/6534/files/r._e._m._fall_on_me.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8072/8224/files/69205466064.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/1587610690.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3493/3408/files/42743919661.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zututekafufefosapebuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2011/4331/files/zalijitisinazo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2520/3354/files/52582328362.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3414/0056/files/87899313484.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wulusiwebope.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6490/1284/files/ragupuzoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5962/4606/files/texegitole.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4398/6327/files/criminal_law_in_ireland_cases_and_commentary.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 5

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_off0000c838.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC838 5468 bytes
SHA-256: 0d3880b5bd3a2740c766f435700d1b1940667ca6e140c040da15208256cc9eab
font_01_sfnt_off0000dab3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAB3 10036 bytes
SHA-256: bac58101af22701bc08aed61af0b4e048a2b5edc9e39b81152d5e8ea560034f7

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