Malicious PDF — malware analysis report

Static analysis result for SHA-256 1afeb002ce497ffb…

MALICIOUS

PDF

45.9 KB Created: 2020-08-05 02:05:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3574934fdb7344eb914d87404c18199b SHA-1: c60b4558c5ecc2cb5efa857bcabbfb636706a517 SHA-256: 1afeb002ce497ffbfce36c19cbec94214d2294ed7d3d0e1f0e76c2446725ece7
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, but one critical link directs to a known malicious redirector. The ML classifier strongly indicated maliciousness. The document body, though heavily obfuscated, contains the malicious URL and references to other PDF files, suggesting a link farm or redirection scheme designed 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=brats+diet+pdf In PDF document text
    • http://nudulotut.whd147.org/uploads/1/3/2/3/132303382/fegamafipod.pdfIn PDF document text
    • http://nalexen.bambus-produkte.info/uploads/1/3/0/7/130776661/111631.pdfIn PDF document text
    • http://files.concertinaman.net/uploads/1/3/1/4/131452840/xevowa.pdfIn PDF document text
    • http://files.jopatti.com/uploads/1/3/1/6/131607075/kegegas-gemaxex-vurux-bawezisof.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/koxumugude.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2172/8919/files/25109969167.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4015/2475/files/77470036205.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6926/7354/files/jenigisumefokaseterozav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5116/2517/files/xigadega.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2025/4375/files/romijawolepegifudevosebu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/70277109097.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2355/7030/files/zunuzurebewidud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9550/7622/files/tuvonisa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4964/7264/files/15015890108.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6630/2376/files/nadiwativelu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5254/5701/files/calendario_laboral_2020_las_palmas_de_gran_canaria.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 7

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_off00007735.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7735 5052 bytes
SHA-256: 40b7af58757077d536eb75175f824127d029394e142422e353a4e4a220042cde
font_01_sfnt_off00008874.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8874 10056 bytes
SHA-256: 3839c6e663ebcfb51730a0827784ef2fbb68dc709746e4732b402ccf62ae8200

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