Malicious PDF — malware analysis report

Static analysis result for SHA-256 50b3d7a41a710a6c…

MALICIOUS

PDF

49.1 KB Created: 2020-08-06 21:55:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 42a54b491c8758d85f204f1508e92585 SHA-1: 791a0d63046a00e5e249ca7b60d48a85e8123777 SHA-256: 50b3d7a41a710a6c2be3ce845b73f747f07b1c32f4eda3397a5ceb4e51dfa177
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains multiple embedded links, with one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=acrylic+acid+production+pdf', suggesting a lure related to 'acrylic acid production' to entice clicks. The presence of numerous other PDF links, many hosted on Shopify, indicates a link farm strategy. No scripts were extracted from this sample.

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=acrylic+acid+production+pdf In PDF document text
    • http://files.calpars.com/uploads/1/3/2/3/132303229/waveluled_mumube.pdfIn PDF document text
    • http://files.vanhighschoolbulldogs.com/uploads/1/3/2/6/132682819/tojipudegalo-xenigaf.pdfIn PDF document text
    • http://files.alondraparkchessclub.com/uploads/1/3/0/7/130738984/likoki.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/1/0432/2813/5592/files/98288571740.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4711/6197/files/navabowobodotivafek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8933/4177/files/perspectiva_caballera_paso_a_paso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6694/0828/files/62964606510.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8346/3832/files/77694104629.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3120/5787/files/brush_lettering_made_simple_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5425/9606/files/tezukikopiwosoluxin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5503/7093/files/1721532250.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7179/8436/files/faxavazijipi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/7151/0430/files/segon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1253/0081/files/10173575935.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2144/2977/files/beginners_guitar_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9157/4430/files/52046934401.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_off000075b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75B1 5064 bytes
SHA-256: f2c0d66486bd8ece36ac6b81eb9f176b7fc804798d4317944bbffd8a3cac78fb
font_01_sfnt_off00008707.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8707 15404 bytes
SHA-256: 4164b01cbdcf04b41ad68fd9abebcedfb4317b19e9e8db299c4e074a26c2cac0

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