Malicious PDF — malware analysis report

Static analysis result for SHA-256 0dfd952cd215f922…

MALICIOUS

PDF

47.6 KB Created: 2020-08-02 02:41:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3db9f259a0a8582932b8b07acac42187 SHA-1: 28b0b5ca0ee63e82c776ae0dd373ec5f339be546 SHA-256: 0dfd952cd215f9227136d97797160c1f099659640d92b12bac7ae8c732f113f2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a lure related to 'Scac code list' and embeds numerous links, including a known malicious redirector. The ML classifier strongly indicated maliciousness, and heuristics confirm the presence of a link farm and redirector designed to lead users to potentially harmful content. The document body itself is heavily obfuscated but contains the redirector URL.

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=scac+code+list In PDF document text
    • http://files.suffolksingers.co.uk/uploads/1/3/1/6/131606984/212881d88fbe6.pdfIn PDF document text
    • http://files.mansfielddems.org/uploads/1/3/1/3/131379280/3607220.pdfIn PDF document text
    • http://files.coolnativesnursery.com/uploads/1/3/0/8/130874240/nibenabomosekejel.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/1/0434/5361/2199/files/towetovameruzedavifuke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6332/8418/files/2786476661.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7714/8571/files/kuvaxiwalulivu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1830/5179/files/bigomavenuni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8026/9477/files/98485470871.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1026/9085/files/gukarewosad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6499/0632/files/circle_of_the_shepherd_5e.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6568/7717/files/70329487409.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7679/6057/files/lipakubilatewebejaboxizi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4493/6599/files/69714557576.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2623/6063/files/dububivokezubibez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8812/5857/files/1945512618.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7896/7703/files/lugukino.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 4

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_off0000634b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x634B 4624 bytes
SHA-256: 1d485671d5c558bc566ac17df819cc684a052ccfe8e65925d9baef114f414874
font_01_sfnt_off000072f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72F3 15292 bytes
SHA-256: 7ce736f724db5c5278310b9aecf74c44550d1c89cd57c873fe917edfe38b9730
font_02_sfnt_off0000a228.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA228 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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