Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d5b2457906861b4…

MALICIOUS

PDF

36.7 KB Created: 2020-08-22 22:07:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 61acdfe12b0ac465b665dc4d7baa1d0d SHA-1: cd84c7b02a13c048cf47173860460861b065be9b SHA-256: 9d5b2457906861b41d89c6a2259c32f643feb29d03dd61ca8e7952d2da1b0b6b
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF document contains a link disguised as 'free b boying tutorials' that redirects to malicious infrastructure via ttraff.com. This indicates a social engineering lure designed to trick users into visiting a potentially harmful site. The document also features a large number of external PDF links, many hosted on Shopify, suggesting a link farm or SEO poisoning attempt to distribute malicious content. No scripts were extracted, but the primary attack vector appears to be the malicious redirector.

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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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=free++b+boying+tutorials In PDF document text
    • http://zoxafis.valleybasegear.com/uploads/1/3/1/1/131163664/1962729.pdfIn PDF document text
    • http://files.heritageecc.com.au/uploads/1/3/0/7/130775432/b7a91b287662043.pdfIn PDF document text
    • http://files.afrhdevelopment.com/uploads/1/3/1/4/131482823/b4671a9e8a.pdfIn PDF document text
    • http://files.thebetterbrasspipe.com/uploads/1/3/2/7/132740218/daf3e1d8396c143.pdfIn PDF document text
    • http://files.ishairimmer.com/uploads/1/3/0/7/130776567/guruladilorizopese.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/1/0435/6138/6147/files/79881809400.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6995/5486/files/34357340476.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7790/2241/files/67049149015.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7248/6566/files/wilajewenutazun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/6434/0130/files/brooklyn_99_season_1_torrent.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5541/5445/files/27490293661.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8245/7000/files/79604571712.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2562/0374/files/adjective_word_order_exercises_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4754/2165/files/wireless_bluetooth_earbuds_for_android_phone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0458/2421/3155/files/22056746739.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3196/9438/files/coordinate_grid_printable.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_off00005266.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5266 5048 bytes
SHA-256: de33fb2b838228ec719965263f6f7ff8f66231f0e87679c59a20a474bef85800
font_01_sfnt_off000063aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63AA 10104 bytes
SHA-256: c012abff756284289ede96a4ee5eb25028428b7a3c85271aaad8d74f99b6a8b2

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