Malicious PDF — malware analysis report

Static analysis result for SHA-256 03ad9ffedd0647e5…

MALICIOUS

PDF

47.2 KB Created: 2020-08-04 23:21:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 412656d7347467ca4ae396b035ab52c5 SHA-1: 65292a19850595d38d1f0a45862dbc87b0e4138e SHA-256: 03ad9ffedd0647e5de2b4ea916af09e69cf3ca979e03f6c00d5d0c3b467d059f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.007 JavaScript

The PDF contains numerous embedded links designed to create a link farm, directing users through a redirector to potentially malicious content. The heuristic firings indicate the PDF is a malicious redirector and part of an SEO link farm, aiming to lure users with deceptive content. While no scripts were extracted, the embedded URLs and the nature of the link farm strongly suggest a phishing or malware distribution attempt.

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.ru/pify?keyword=chamakam+meaning+in+telugu+pdf In PDF document text
    • http://files.espacepilates.com/uploads/1/3/2/6/132681901/1dad5e2.pdfIn PDF document text
    • http://files.pathhomewa.com/uploads/1/3/0/7/130775245/3806079.pdfIn PDF document text
    • http://files.salt-kitchen-co.com/uploads/1/3/1/4/131437623/mikejazujibuzej.pdfIn PDF document text
    • http://files.coldharborroadcoc.org/uploads/1/3/0/8/130873983/2c1d1b4a02.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/1/0434/0688/5027/files/princess_mononoke_torrent.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7689/5398/files/danudan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1784/4382/files/8478743679.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6993/1673/files/pete_s_opengl2_driver_2._9.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8721/6293/files/28206004956.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5598/0439/files/xawabiraworomubivadim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6985/7176/files/kubujapapekawatat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0294/3909/files/gozomo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6463/1195/files/mewozoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dusegu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9587/5989/files/motadijejakunedexuvuseko.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_off00007c98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C98 5152 bytes
SHA-256: 29a37f1da6a9591b3827c94d9552de785d1be32efd93ba6383118111ab9536ee
font_01_sfnt_off00008dfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DFC 9816 bytes
SHA-256: bf7032c3686d4e01ed1447b6638d6542192a4d9561da34607940d3b2635564ce

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