Malicious PDF — malware analysis report

Static analysis result for SHA-256 152122296c4d0c44…

MALICIOUS

PDF

32.2 KB Created: 2020-08-09 09:35:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1808354e4afa8d3f1147b4d74370c976 SHA-1: cbc4e19c95958d02c9d27985c284181abe6057b6 SHA-256: 152122296c4d0c4406c75d78731d25f51ed61d058025e6538af837b18bd7fedc
194 Risk Score

Malware Insights

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

The sample is a PDF document that contains numerous embedded URLs, many of which point to a redirector service. The ML classifier and critical heuristics indicate malicious intent, specifically linking to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the primary redirector URL, suggesting it's intended to lead the user to malicious content.

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=alleluia+jesus+culture+pdf In PDF document text
    • http://files.meganyounkman.com/uploads/1/3/0/9/130969623/zemutewelexef_rapumufar.pdfIn PDF document text
    • http://woloretul.diablowoodturning.org/uploads/1/3/2/8/132814930/binirawisejegeber.pdfIn PDF document text
    • http://files.ingridpoulson.com/uploads/1/3/1/3/131384359/41408.pdfIn PDF document text
    • http://files.mairibudreau.com/uploads/1/3/0/7/130776864/ziwawajobigogefivane.pdfIn PDF document text
    • http://files.tntgreatfalls.com/uploads/1/3/0/7/130775653/jenezudaxaro-waxikebibupo-gosolukisiweziw-fefuwajadijo.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/1/0432/2764/4072/files/4960347203.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2440/8991/files/42348124424.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7189/6736/files/sony_xbr65x930e_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8158/1223/files/82_buick_regal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85450973079.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8144/0168/files/lojimuvuxokobe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0156/0737/files/jetorote.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9018/2297/files/84391294050.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6802/3194/files/57950583035.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/1017/4630/files/bright_line_eating_free.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_off000041b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x41B1 5212 bytes
SHA-256: bedeaa01b126f49e23edc700bbffe08a51cee3db872de22deb1ae3c8d650f1b3
font_01_sfnt_off00005387.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5387 9540 bytes
SHA-256: 159dad6fa598a2fdf591caf60b6de903afc919cf500bdcbe29f0cfd20c141742

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