Malicious PDF — malware analysis report

Static analysis result for SHA-256 830d429f8f162220…

MALICIOUS

PDF

42.3 KB Created: 2020-08-17 14:27:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1789776953617bdc548734de32113fc0 SHA-1: 0f10566574916daeb26556da5196dba91c5482cd SHA-256: 830d429f8f1622209362c1545dee453e5753be51166e9352ad0823f75f1dd31c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external resources, many of which are part of a link farm designed to redirect users. The primary redirector URL, 'https://ttraff.ru/pify?keyword=best+french+door+refrigerator+consumer+reports', is flagged as malicious. This suggests a phishing or scam attempt, likely using a lure related to consumer reports to entice clicks.

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=best+french+door+refrigerator+consumer+reports In PDF document text
    • http://jufuli.mediumsarahlemos.com/uploads/1/3/1/4/131453645/48821765c5bc2.pdfIn PDF document text
    • http://files.msbutchersclassroom.com/uploads/1/3/1/4/131453061/rizirumi.pdfIn PDF document text
    • http://files.sonjageorgeson.com/uploads/1/3/0/9/130969018/4818599.pdfIn PDF document text
    • http://files.ohkanpai.com/uploads/1/3/0/7/130775509/33836b8d3318389.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/1/0438/2221/9421/files/79054711841.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sebifoxof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8121/1810/files/tekkit_legends_resource_pack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6182/0054/files/3893175485.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8099/0366/files/math_1st_grade_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4954/7936/files/48335664953.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7526/2869/files/40444373202.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6208/3232/files/67218044197.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7066/8453/files/repiwarufojizedo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6871/8233/files/95463737988.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3337/9487/files/english_learning_books_for_kindergarten.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5326/1724/files/34533860223.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 6

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_off00006681.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6681 5588 bytes
SHA-256: 0f880011667df6eed640ae0cd2cb732020f92c89bdb4e53d22d7d1ffc9c44ced
font_01_sfnt_off00007954.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7954 10176 bytes
SHA-256: f4c447acbbed46ec40e72ec02001e78990f19b2e5dd02bc4b63c044d34a06df9

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