Malicious PDF — malware analysis report

Static analysis result for SHA-256 983782586208882b…

MALICIOUS

PDF

41.4 KB Created: 2020-08-06 20:50:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f05934b82ee0899f2f2503c53c62bebe SHA-1: c428cc4d169e99908aafc0829b12080cf34252bb SHA-256: 983782586208882b2731d9962ee77f9674c48d55d462f3ae787889293cff906d
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.cc) known for malicious activity. The document body, though heavily obfuscated, contains references to the redirector URL and other URLs hosted on Shopify and custom domains, suggesting a link farm designed to redirect users to malicious content. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is a 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.
  • 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=emarketer+2020+pdf In PDF document text
    • http://files.annkellettediting.com/uploads/1/3/0/7/130776817/josikuwaba-gexazagetimin.pdfIn PDF document text
    • http://files.simplyelicia.com/uploads/1/3/1/8/131858916/56387.pdfIn PDF document text
    • http://files.everlightimagery.com/uploads/1/3/2/6/132681611/5245854.pdfIn PDF document text
    • http://files.meganwords.com/uploads/1/3/0/7/130738949/mufevetamemo.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/1/0435/3438/5303/files/punjab_textbook_biology_class_12.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4863/8363/files/anatomy_of_ear_nose_and_throat_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6302/4542/files/cedar_rapids_weather_underground.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2160/6818/files/63674933133.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2150/8506/files/hindu_baby_names_with_meaning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0892/5600/files/34955962081.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9880/7202/files/microbiology_in_telugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5214/6587/files/zevewokerobufonem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4641/1160/files/ridawesuvipotetabon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6886/7231/files/adjacent_channel_interference.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4722/3458/files/sigesakab.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 3

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_off00006456.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6456 5272 bytes
SHA-256: 1ecf111951a202857059be9af69b34fd692850ceb8bafa46a822e1b5b50c49b4
font_01_sfnt_off00007634.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7634 10208 bytes
SHA-256: 4297b4dce003267432c43fc56b00093b361ca5ed2b4028532e92362cd67ad7ef

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