Malicious PDF — malware analysis report

Static analysis result for SHA-256 76c3ea04243b5cf0…

MALICIOUS

PDF

71.7 KB Created: 2020-08-20 00:46:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 159c3c1d25f4536edfd8c6ec51ded66b SHA-1: 1d86e75beedd343a07e719938c21a6ebc72aff80 SHA-256: 76c3ea04243b5cf02ff9685794cf5a09917ba0ed9be71ff76216affaab63de45
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a redirector link pointing to known malicious infrastructure, suggesting a phishing or scam attempt. The document body contains obfuscated text and a URL that is likely intended to lead the user to a malicious site, possibly for credential harvesting or malware delivery. The ML classifier strongly indicates 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.cc/pify?keyword=bengali+baul+song+audio In PDF document text
    • http://files.wfgcompass.com/uploads/1/3/0/7/130776489/kikokoxud.pdfIn PDF document text
    • http://files.krystalgarner.com/uploads/1/3/1/8/131857315/xubepaziwawakol-vodosigumolel.pdfIn PDF document text
    • http://files.floorstogoblog.com/uploads/1/3/0/8/130874238/vowaf-vugow-livofo-vumido.pdfIn PDF document text
    • http://files.annakscotti.com/uploads/1/3/1/4/131407918/c15973e3.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/1/0437/9380/9557/files/stet_bihar_previous_year_question_paper.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8432/5798/files/cassava_flour_processing.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1742/7352/files/54637352790.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/0201/4357/files/french_language_guide_beginners.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/zasowexujunazojilufepajob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/35679391278.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3474/6790/files/kunipuwexelajozotonez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5649/4757/files/terukoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1141/5962/files/gefozagajabenufesipu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1594/6911/files/tovivesofabejixukemizevo.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 8

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_off0000d7b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7B5 5088 bytes
SHA-256: bd28f9f4e1abd61feba7ca79a204d8e3cf2de02b52ec6a1b966f027f8b6db5aa
font_01_sfnt_off0000e905.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE905 12792 bytes
SHA-256: 0c3de801c9d0f02e551053f234b3e0191d0e24517433704928a9bf5bda2e7b56

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