Malicious PDF — malware analysis report

Static analysis result for SHA-256 1db984b326a7c9eb…

MALICIOUS

PDF

99.6 KB Created: 2020-08-03 17:17:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9a475af61c6a5e60fed77ed58c41cdfa SHA-1: 9efaea2fb1a82afb2dc13c5f4500880e0bcc34ca SHA-256: 1db984b326a7c9eb41f81dbafe831d9f5bc4ea719a4f795bfd6bcee1a8a58715
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for linking to known malicious redirector infrastructure, specifically `https://ttraff.ru/pify?keyword=types+of+pesticides+pdf`. Additionally, it exhibits characteristics of a PDF link farm, embedding a large number of external links, many hosted on `cdn.shopify.com`. The document body, though heavily obfuscated, contains the same lure text and the malicious URL, suggesting the primary purpose is to drive traffic to malicious sites.

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.ru/pify?keyword=types+of+pesticides+pdf In PDF document text
    • http://files.sweettweetsby2.com/uploads/1/3/1/4/131438443/kakijupekezoxem_nuzubinorejup.pdfIn PDF document text
    • http://files.thebrewnextdoor.com/uploads/1/3/1/8/131856108/wibesenov_ruduzizuvupo_wotubirujirixu_mexozajuzuw.pdfIn PDF document text
    • http://files.communityfencing.org.uk/uploads/1/3/1/8/131872273/2720417.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/1/0431/3602/4742/files/74264294114.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2831/5293/files/dukanetomudotuson.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4610/8312/files/1969_camaro_assembly_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4435/5739/files/71713693552.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6389/2376/files/jijulotakodotawopelitod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lagikemirulufuwetore.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5963/4591/files/zubidorepode.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5930/5880/files/kolug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0763/9711/files/gesidipabidupufu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9544/0040/files/8043756533.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4572/4055/files/popogid.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 7

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_off000147f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x147F0 4864 bytes
SHA-256: 21aea9caa5721e140c23f35300f3d7ad6ee9cf1cb7af51c966a26a6e252ab69a
font_01_sfnt_off000158a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x158A4 11920 bytes
SHA-256: f391a1afc4c5be675635891f69637ee4e200d47d71f9d8dd3604b0f880f8a915

Open this report in the interactive analyzer, or submit your own file for analysis.