Malicious PDF — malware analysis report

Static analysis result for SHA-256 f27d45de48b0956f…

MALICIOUS

PDF

44.1 KB Created: 2020-08-10 00:33:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 384d100bad6fdad3f4920b4e7bd5f6b5 SHA-1: 1e8ad0c1f3b06923be2563b9e1578e09955c4396 SHA-256: f27d45de48b0956f725b921ff8534f5afe78eab88c632f80f03ca9991cc44626
194 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link and a large number of SEO-optimized links pointing to other PDFs, designed to lure users to malicious infrastructure. The primary malicious URL identified is https://ttraff.cc/pify?keyword=behringer+x+air+xr16+manual+pdf. The document body, though heavily obfuscated, contains references to the target URL and the PDF's purported content, indicating a social engineering lure.

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=behringer+x+air+xr16+manual+pdf In PDF document text
    • http://numidur.relentlessperformance.org/uploads/1/3/2/8/132814930/2187371.pdfIn PDF document text
    • http://files.lgcfinc.org/uploads/1/3/0/9/130968994/selorubizinirejozuta.pdfIn PDF document text
    • http://files.aspiringmindsfw.com/uploads/1/3/0/8/130815095/tokabivovu.pdfIn PDF document text
    • http://files.komeililab.org/uploads/1/3/2/7/132710601/laderubut-tevudawilozaz-pirupusomo.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/1/0438/4591/0678/files/3815353163.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8136/7712/files/bstc_result_2020_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2635/8173/files/19478738983.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6940/6360/files/barron_s_sat_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0521/3847/files/53469932573.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0205/1235/files/semawefirelurosumuru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9318/1095/files/category_theory_textbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3681/9104/files/spartan_education_vs_athenian_education.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3872/7589/files/zebapafisojapanorozazogos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5912/5160/files/40715813705.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3322/1527/files/android_app_building_tutorial.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 4

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_off00006d85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D85 5600 bytes
SHA-256: f9ac8b525e48fc3c8030080bb87321fa40232cfa4fc2c9bfeeaddd7ad0de34b5
font_01_sfnt_off00008075.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8075 10408 bytes
SHA-256: 3dd5e8e505a32b78de963890a1aaae483552d8c93ff272544ebb0245ae2d8df2

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