Malicious PDF — malware analysis report

Static analysis result for SHA-256 95d658b6c9a75240…

MALICIOUS

PDF

58.3 KB Created: 2020-08-14 03:38:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 74151cafbe8f964fb29f0dcc23b9dd22 SHA-1: 1cbe92c2d7a05ea06eb0a7c6af94245e2da70f7c SHA-256: 95d658b6c9a75240d962105a3180e963cacd3c5269e64650c5e35674f6863311
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a mass external link farm, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains text referencing a 'Logitech bluetooth keyboard k400r manual' and includes the malicious redirector URL. This suggests a social engineering lure to drive traffic to malicious infrastructure.

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=logitech+bluetooth+keyboard+k400r+manual In PDF document text
    • http://files.washingtonactivities.com/uploads/1/3/1/4/131482975/94ec88b3a70035.pdfIn PDF document text
    • http://files.staceymyshack.com/uploads/1/3/2/6/132680998/7814896.pdfIn PDF document text
    • http://zidasuwin.closdecandele.com/uploads/1/3/2/3/132302720/a448280.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/1/0437/9099/1521/files/mcgraw_hill_grade_12_calculus_and_vectors.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7854/1727/files/kannada_formal_letter_writing_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7922/7810/files/bumiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0089/7434/files/kalapusar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0087/3631/files/29657221688.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2396/5080/files/o_budismo_esotrico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dofupuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0212/5733/files/php_test_mysql_connection.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0425/4615/files/free_download_new_bangla_boi_by_masud_rana.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3078/9800/files/house_interior_design_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4355/2423/files/99828023497.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9614/9921/files/70671916550.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 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000702a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x702A 13108 bytes
SHA-256: 9eaa9d1eed44816022a9040e993609b1db3195df8a87971a3d207af1d425748c
font_01_sfnt_off00009b06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B06 5652 bytes
SHA-256: 55b6a0b2445d67d2aade610ed60ae413770b07f933b615014d8c57271d4075c9
font_02_sfnt_off0000ae37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE37 14364 bytes
SHA-256: 7c4e36bea45a245e0d21f48d33a737d1e461cbd75005cd888c26d8e5fe4dc788

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