Malicious PDF — malware analysis report

Static analysis result for SHA-256 f11b328cee120f6d…

MALICIOUS

PDF

49.4 KB Created: 2020-08-07 16:02:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8a61daabc564147f76ed0a05e5ea010b SHA-1: 2f4f53e8d4bf1bd1496442e7a9d09eab975a7a90 SHA-256: f11b328cee120f6db89288413c1246dd89896c5301fa568bcf657c8749402f57
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 link farm hosted on Shopify. One of these links, 'https://ttraff.cc/pify?keyword=all+important+days+pdf', is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to this malicious URL, suggesting the primary intent is to redirect the user to malicious content.

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=all+important+days+pdf In PDF document text
    • http://files.scarfandbow.com/uploads/1/3/1/4/131453036/pedit.pdfIn PDF document text
    • http://panuxufi.southwestpaddlecompany.com/uploads/1/3/2/3/132303035/5861421.pdfIn PDF document text
    • http://files.littlemisschateau.com/uploads/1/3/1/0/131070619/lujidufuro-bakurivuval-watanugu-robakegef.pdfIn PDF document text
    • http://files.evansadopt.com/uploads/1/3/1/4/131408439/793d9be0.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/1/0428/9835/8432/files/doxufuvezemog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9305/5904/files/mulanawajakukikam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2529/1674/files/98420021389.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5308/7911/files/cowboy_havamal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4249/5899/files/kenmore_elite_refrigerator_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mejamuzeditika.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1009/6284/files/telugu_songs_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9524/4452/files/haloalkanes_and_haloarenes_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0818/6792/files/grade_2_math_multiplication_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/2625/4745/files/bspt_thread_chart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1030/7749/files/77910202752.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_off000083ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83AE 5276 bytes
SHA-256: dd4bb8813df95ee0bc2e1d8348c0a2b1e2e25a8c2f39377bb12b4a86d3fcb83a
font_01_sfnt_off00009593.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9593 10264 bytes
SHA-256: ffc38af1b7ec0c0802a792b4d8ea10c1b4067b63f4160e74e6654932122889ef

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