Malicious PDF — malware analysis report

Static analysis result for SHA-256 82a7d8f48f9f9fe9…

MALICIOUS

PDF

59.7 KB Created: 2020-08-27 21:55:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: aadf91a8a3b3446dc0319a90de9999ac SHA-1: bf0854f8a0218828ce7bf2d5cbc95789a32abede SHA-256: 82a7d8f48f9f9fe9750f42ac21e3d5ce3a33bb7f1c787747c99fc2404254349a
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector URL, indicating an attempt to lead users to a malicious site. The embedded content, though heavily obfuscated, includes a URL that is flagged as a malicious redirector. This suggests the document is designed to exploit users through deceptive links, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.club/pify?keyword=ek+duje+ke+liye+bhojpuri+song In PDF document text
    • http://files.lcfanaheim.org/uploads/1/3/2/7/132740398/wexisisewobakizaxar.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/1/0430/3582/0185/files/94225516792.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/4516/2903/files/affiliate_marketing_training.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1839/4523/files/zudunoxokutete.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9513/8208/files/affective_learning_theory.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3295/1446/files/tavemexutatujadudixavezi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5654/5433/files/character_emotions_chart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/9121/4743/files/51300810303.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1234/9334/files/vitafuwuji.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 1

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_off0000a5a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA5A0 5348 bytes
SHA-256: a51bc1dcd898a17680d92696e805cbf872fb66343900a19463659239794765b4
font_01_sfnt_off0000b7d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB7D1 13784 bytes
SHA-256: 64dee70939e39f16d1f4e2819927d58c15ced5dd725093ec17518a4ee9cd77ff

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