Malicious PDF — malware analysis report

Static analysis result for SHA-256 14e347e7ff3f9137…

MALICIOUS

PDF

45.5 KB Created: 2020-08-22 02:15:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0f9dc71f74fdbc82591caeef80d44316 SHA-1: 2ed1dc781f1c9efee2578b7d59a33cf66321be81 SHA-256: 14e347e7ff3f913757cae7f0154fd82dda5d5d4388924bf3d8fc23ddc6d3a7e9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, many of which point to redirector infrastructure like 'ttraff.ru'. This suggests the document is designed to lure users into clicking malicious links, likely for phishing or malware distribution. The ML classifier also strongly indicated maliciousness.

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=gta+5+lester+assassination+money+guide In PDF document text
    • http://kivudep.vanaudelanalytix.com/uploads/1/3/0/7/130776106/37278.pdfIn PDF document text
    • http://files.dairyflatponyclub.org/uploads/1/3/0/7/130739142/vidibobipal.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/1/0428/9835/8432/files/japoxotoruzub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6332/8424/files/how_to_convert_mp4_to_wav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8799/5807/files/cuentos_coaching_ontologico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5754/3328/files/22740400950.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1419/2284/files/74842772284.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8918/2376/files/free_anger_management_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0016/7589/files/75455177060.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9776/6553/files/31839810485.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0326/4667/files/62284310245.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0016/8597/files/53365051252.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9002/7430/files/likez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3129/6160/files/wiweremunanevul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/57896919986.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000069a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69A3 5400 bytes
SHA-256: 103275fbdc06ba08d65b375e40ecff7f9d093bb1ee18d82b3e1c5b97fff5ce65
font_01_sfnt_off00007bf7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BF7 14600 bytes
SHA-256: e89f7bdda03a0155569984892ece1f00288285c9cf7573a644d554838b39c951

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