Malicious PDF — malware analysis report

Static analysis result for SHA-256 7efc3510a8f71c5d…

MALICIOUS

PDF

42.6 KB Created: 2020-08-14 10:48:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6561a7265557a5d298bcdaab8c02db34 SHA-1: 69c2ce6aaf4629fda34cd417ce6f7e89ca2fd13c SHA-256: 7efc3510a8f71c5d449298b7ed38c2985218c45abd62ecc827bbb2fde6214ffb
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to what appears to be an SEO link farm designed to distribute malicious content. The primary redirector URL, https://ttraff.cc/pify?keyword=petg+thermoform+plastic+sheets, is flagged as malicious. This suggests the document's purpose is to trick users into clicking these links, likely leading to further malware downloads or phishing attempts.

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=petg+thermoform+plastic+sheets In PDF document text
    • http://zopakage.mrsjones.us/uploads/1/3/1/4/131453574/tuboni.pdfIn PDF document text
    • http://files.openstarmaths.org/uploads/1/3/1/6/131637919/98fc8f5e.pdfIn PDF document text
    • http://foruma.obmghk.com/uploads/1/3/1/8/131871991/venegegabukixuz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0451/7996/1495/files/biblia_nuevo_testamento_en_griego.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/38935964995.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2693/8018/files/brief_answers_to_the_big_questions_drive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6331/9445/files/avancemos_2_practice_workbook_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6354/9847/files/96685339455.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/59526866216.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4448/7836/files/tarotebafokubap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7141/5196/files/21965393139.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5050/6152/files/65862149879.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3318/2886/files/36212068680.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4138/2812/files/figeginiwabulifa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0485/2386/files/5867752723.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 5

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_off00004e5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E5C 5112 bytes
SHA-256: dd51ed4cc8d28b9dddff56ddb6314b5e4d7f7db47468dca0460fd21066db163c
font_01_sfnt_off00005fbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FBD 14848 bytes
SHA-256: 461fcce1c62299651f3a5ddc95097ab5b54dd9a29d9827e42edcbe9838b6009a
font_02_sfnt_off00008dfb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DFB 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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