Malicious PDF — malware analysis report

Static analysis result for SHA-256 d407689b39ba4c42…

MALICIOUS

PDF

43.5 KB Created: 2020-08-10 18:06:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 73fa410075ad3fd761e7593c4cc82fc7 SHA-1: d402f72e9fae0641132bfffef44c976247c3c16c SHA-256: d407689b39ba4c42dbf6fe27dd14b1be837dd53da50b8fd7485ac547ce92844c
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=avocado+oil+extraction+pdf'. Additionally, it features a PDF link farm heuristic, indicating an attempt to distribute numerous links, many of which are hosted on Shopify but point to potentially unrelated documents. The document body, though heavily obfuscated, contains the same malicious URL and a benign-looking Shopify URL, suggesting a lure to a malicious site disguised as a document. No scripts were extracted from this sample.

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=avocado+oil+extraction+pdf In PDF document text
    • http://regak.teachertalkstruth.com/uploads/1/3/0/7/130775735/7018198.pdfIn PDF document text
    • http://files.sprucestreetnyc.org/uploads/1/3/2/6/132695620/posasalugudup-mapip.pdfIn PDF document text
    • http://files.jecha-networks.com/uploads/1/3/2/6/132682913/83533f4953b52fa.pdfIn PDF document text
    • http://files.lindatrossart.net/uploads/1/3/0/9/130968985/kusevenimanotew-sutumumepuf.pdfIn PDF document text
    • http://files.premierheartgroup.info/uploads/1/3/1/4/131453985/3968180.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/1/0440/5297/1685/files/1996_buick_century_service_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9200/0406/files/fugowejogovatijipirij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9480/2581/files/47590125165.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8769/1925/files/14751091128.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7379/8298/files/pilupemekaxajofo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7182/3262/files/78834091201.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8699/5863/files/canon_eos_6d_mark_ii_brochure.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6425/4883/files/80379581638.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0521/3854/files/sogajevosaverapefur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0342/9535/files/jezugap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8565/2375/files/kizurun.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_off00006b42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B42 5088 bytes
SHA-256: 8ac3414798ad6125b559b3de95082417b193c1643096d6ec32cff1223310a735
font_01_sfnt_off00007c9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C9E 10764 bytes
SHA-256: 4236475ac8ccf59473f599025f9d25f2151fb6803df8735120d7512605c15245

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