Malicious PDF — malware analysis report

Static analysis result for SHA-256 82f2de4f7576f1ed…

MALICIOUS

PDF

33.6 KB Created: 2020-08-19 13:48:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 33ebefa1d6e9f03f70f421bec88994d2 SHA-1: cea84286220961863eaf9c628949b047e845a148 SHA-256: 82f2de4f7576f1ed1ece1742cc24abfe2ef46329ba191d372d5f8080a61a8b47
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with a critical heuristic firing indicating it redirects to known malicious infrastructure. The document body, though heavily obfuscated, contains a URL that appears to be a lure for free downloads. This suggests an attempt to redirect users to malicious sites, likely for phishing or malware distribution.

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.com/pify?keyword=bordered+paper+pdf In PDF document text
    • http://nosuf.graceellann.com/uploads/1/3/2/7/132740505/dorinelaxa.pdfIn PDF document text
    • http://files.sciencebrewer.org/uploads/1/3/1/4/131437149/wugesuzazeko_xaxasojitoveb.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/1/0433/5216/2462/files/aerodactyl_raid_boss_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5181/8903/files/vinatimiliwisefumozuva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3346/7808/files/44339252976.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5971/4971/files/patagufapuji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7400/9753/files/dajagujuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5829/1093/files/resident_package_log_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7941/7504/files/jojizotazemugazosesawop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9085/3541/files/93456266155.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3885/0719/files/swot_analysis_of_self_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3262/4797/files/84512813801.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 3

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_off000046ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46EC 4872 bytes
SHA-256: dae5293b60efc29b4fcadba57f875cb8e31d99c0f4a6ab2516866ea390573b2c
font_01_sfnt_off00005793.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5793 10044 bytes
SHA-256: 7cba71fcf08b9f353ba8049c2a8dd9c1ebce2590be20ab22cf2d0d69b9fc4e26

Open this report in the interactive analyzer, or submit your own file for analysis.