Malicious PDF — malware analysis report

Static analysis result for SHA-256 6252ca2210ba9b64…

MALICIOUS

PDF

40.0 KB Created: 2020-08-05 08:40:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 55231168a136a5dcaa766f7ddcda1db7 SHA-1: 762db4b50a8eb2ee65e88935406bf8960e018041 SHA-256: 6252ca2210ba9b64006ecfdf35c478b99b48d1545515f49b079d418e79694335
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 a link farm, suggesting a phishing or malware distribution scheme. The presence of a 'download button' lure and the ML classifier's high confidence score further support this assessment. The primary redirector URL, 'https://ttraff.ru/pify?keyword=adobe+pdf+full+installer', is used to funnel victims to various SEO-optimized PDF lures hosted on Shopify and other domains, likely to disguise the malicious intent.

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=adobe+pdf+full+installer In PDF document text
    • http://rojajesix.stephanieflear.com/uploads/1/3/0/9/130969352/kupofamu.pdfIn PDF document text
    • http://files.fusedancecollaboration.com/uploads/1/3/0/8/130874134/1107969.pdfIn PDF document text
    • http://files.stevescustomcarpentry.org/uploads/1/3/0/7/130775528/jinederitupani-razujaxuted-wewefa-fegenapaxok.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/1/0428/6906/3836/files/43550253827.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9213/2508/files/fexotuwabexejusafowet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7695/1974/files/jebogopuzo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9805/3535/files/82898618841.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tivaluzisezulumavolo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1541/3661/files/55842040199.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1867/3566/files/valunozuxopene.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3020/8924/files/detizulolomikugelifis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9180/1752/files/weblogic_admin_interview_questions_and_answers_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2969/2577/files/vexewonozexijatew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8694/5187/files/jofedoloj.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_off00005f56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F56 5164 bytes
SHA-256: 9ca5652c890fcaf55a20185c773871c263ae5870fcbe6ade39b7996f3ebea0ca
font_01_sfnt_off000070f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70F3 10132 bytes
SHA-256: 9927d6db3239cbc5a1b6676c59327beddfbdee010d2c29f9bad3ad446a3602ce

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