Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b5c49fe1d231b4d…

MALICIOUS

PDF

50.2 KB Created: 2020-08-12 16:45:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a9c643b2ce73c06fb1b636bad7bd1838 SHA-1: f641109c94150393993afb064d132f5c623c99c3 SHA-256: 7b5c49fe1d231b4d4e11486affd3f5f4e5989a8798be0fe8b4f094c79817ee3c
194 Risk Score

Malware Insights

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

This PDF document contains numerous embedded links, many of which point to a redirector service (ttraff.com) that is known to host malicious content. The document body and embedded links suggest a phishing or scam attempt, likely to trick users into downloading further malware or visiting malicious sites. The ML classifier strongly supports the malicious verdict.

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=best+self+help+pdf In PDF document text
    • http://fetiloxim.gapcg.org/uploads/1/3/1/3/131383791/3234561.pdfIn PDF document text
    • http://files.millsites.com/uploads/1/3/2/7/132740457/a29be8d7e7.pdfIn PDF document text
    • http://files.nutrition168inc.com/uploads/1/3/0/7/130775612/6d0a3f6.pdfIn PDF document text
    • http://files.tuahu.tetokiharuru.com/uploads/1/3/1/6/131636692/613926.pdfIn PDF document text
    • http://files.sennpen.com/uploads/1/3/2/6/132681951/fugivu_sogezefudazadi_bumagezowal_sotowe.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/1/0432/9255/7467/files/mamizupo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4923/8179/files/velovowowaxabutirekasap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8722/4213/files/logical_ability_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6638/2749/files/poborezolenetun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1230/9670/files/situkujewetupufanezurido.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2169/6149/files/free_download_burda_magazine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2703/8371/files/74162927514.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/98559129476.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2331/8686/files/affichage_obligatoire_acm.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8837/9032/files/9747291786.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1510/0840/files/12768887128.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0845/8905/files/limit_bilangan_kompleks.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 2

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_off000087f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87F9 4872 bytes
SHA-256: 11754ffa68d90fd218082f451f95cadea6f5221975591a320aedc7a270d39a01
font_01_sfnt_off00009891.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9891 10472 bytes
SHA-256: 7f9e65d8226e1471aa343d06bcd5b8737dc77923579d8b19b8b6e7ec4ea1a6dc

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