Malicious PDF — malware analysis report

Static analysis result for SHA-256 d328b2b1beee166f…

MALICIOUS

PDF

41.9 KB Created: 2020-08-12 04:17:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ff1bb383d2a2eee965764f22d10a9a91 SHA-1: 6696c39ca0b834bf5f35e4179c01e3b102ca7736 SHA-256: d328b2b1beee166fe7bb63156ead4d3dd30d7a1aa5a898e8ef6c408f9e023dff
194 Risk Score

Malware Insights

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

The PDF file contains a mass of external links, masquerading as 'inspirational quotes for students pdf'. One of these links, 'https://ttraff.cc/pify?keyword=inspirational+quotes+for+students+pdf', is identified as a malicious redirector. The document body is heavily obfuscated but contains references to the malicious URL and numerous other PDF files hosted on various domains, suggesting a link farm or redirection scheme. The primary intent appears to be directing users to malicious infrastructure through deceptive 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=inspirational+quotes+for+students+pdf In PDF document text
    • http://files.bluebellhill.org.au/uploads/1/3/0/8/130814605/374201.pdfIn PDF document text
    • http://xoliboduk.amyshomedaycare.com/uploads/1/3/1/3/131380213/2e02c3a928.pdfIn PDF document text
    • http://files.bethelroyalheirs.com/uploads/1/3/0/8/130874143/7727158.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/1/0429/7284/0090/files/rojamikiterizilo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3866/2053/files/8142731845.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2588/2520/files/bridge_of_spies_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6564/7012/files/12649901586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1937/0659/files/bachatas_2015_descargar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2218/6656/files/bernoulli_differential_equation_solved_problems.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2131/0875/files/fuxewokezufod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0500/8293/files/pesupizajibuzepudovaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2962/4982/files/8349403840.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7605/8274/files/binakexe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6326/3910/files/pre_algebra_cheat_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6636/8935/files/29557966404.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 5

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_off00006680.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6680 5100 bytes
SHA-256: 54ce51cdcf3b28c9a2a8f7f23b1c9e4677c7c985192135be59d936bc2be49c6c
font_01_sfnt_off000077d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77D5 10344 bytes
SHA-256: 5f65dc3c5984b00618a328970797f760e758ad3c42d7fdb02da2a95fec7fb451

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