Malicious PDF — malware analysis report

Static analysis result for SHA-256 dfe6bb7669eff0e6…

MALICIOUS

PDF

36.2 KB Created: 2020-08-10 01:57:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9075e01e7fa9297968dbb2db4cdaccfd SHA-1: 66f3261c66f24c393bdb733fb3de7b5ae52e567b SHA-256: dfe6bb7669eff0e6f5da193215ce9daea731d5a58d6ad1a7dd36194b183a7249
194 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.com, which is likely used to obscure the final destination of the malicious payload. The document body, though heavily obfuscated, contains the URL that triggered the heuristic, suggesting a lure to download further content. The presence of numerous external PDF links also indicates a link farm strategy, likely for SEO poisoning or to distribute 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.com/pify?keyword=jurnal+gerak+fototropisme+pdf In PDF document text
    • http://files.4-ucorp.com/uploads/1/3/0/7/130739567/7385382.pdfIn PDF document text
    • http://files.kickitlivingweekly.com/uploads/1/3/1/8/131871614/tilivalaxazu.pdfIn PDF document text
    • http://files.poultryserviceassociation.com/uploads/1/3/0/7/130740257/minuborifejuzexegi.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/1/0437/8820/6238/files/balance_druid_bis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5556/2398/files/6335653779.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7590/3383/files/amar_ujala_news_paper_lucknow_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1926/2357/files/42618859219.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/66541571973.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2100/9053/files/wixanadelikejixebuxudetug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0580/3687/files/7376369536.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4296/3613/files/wwe_ringtone_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tovovowegafakaroseras.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6768/6556/files/14145736076.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3791/7345/files/noledopatevoraraju.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_off00004df9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DF9 5416 bytes
SHA-256: 7e5d9b83a0b053cf2bcff86f47e1b057bd561ade4a467be0d3b0fd9c926cc190
font_01_sfnt_off00006055.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6055 10832 bytes
SHA-256: 9630771c422884b52c4be37c1c7d850744589d620a3545b696531915f791f310

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