Malicious PDF — malware analysis report

Static analysis result for SHA-256 92f31f22da34fd9b…

MALICIOUS

PDF

68.5 KB Created: 2020-08-11 16:57:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8662684a8f82f94a556827bb381a79f5 SHA-1: 4f1ee5f9dab65ed8bda0ddc04da013bfe8851a05 SHA-256: 92f31f22da34fd9b7d287d7d828b54291fe911d6e116e9e9fd850fae87bdd7d6
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with one critical link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=backyard+beekeeping+pdf', suggesting a lure to download further malicious content. The presence of multiple Shopify URLs, some benign and some unknown, indicates an attempt to blend in with legitimate 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=backyard+beekeeping+pdf In PDF document text
    • http://files.artbyjaney.com.au/uploads/1/3/0/9/130969368/901b53642.pdfIn PDF document text
    • http://files.tillamookschoolofdance.com/uploads/1/3/1/4/131407061/fifebax.pdfIn PDF document text
    • http://files.auburninvestmentgroupllc.com/uploads/1/3/2/7/132710621/donuwoj_zupiwazewa_pifemi.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/1/0431/0132/3420/files/28041393325.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3421/4561/files/medical_terminology_in_spanish.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3453/3275/files/keto_breakfast_cookbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2025/4375/files/34065307745.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0845/8905/files/91162400815.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0425/4615/files/abrsm_grade_5_music_theory_past_papers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/86662201832.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2328/5920/files/19390514373.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0571/4338/files/fitufeniziripetiga.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 2

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_off0000cf06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF06 5468 bytes
SHA-256: bae0e1a95efa1826d7df07d90622a83e53aab65db6f906463750279a39d5cf54
font_01_sfnt_off0000e1c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1C6 10420 bytes
SHA-256: e607471e40da5782b8b55ac77c906d12fd0249a4778c2ed8cdac7f8fdfdcfcd7

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