Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd799718f51a2d40…

MALICIOUS

PDF

82.7 KB Created: 2020-08-01 03:30:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0978e7a7af3624792f51043b6b00d195 SHA-1: c95552781a9328fa1c947a9e78fbae9a56d72c42 SHA-256: bd799718f51a2d4074b8ebc0ece20aa3af71ddcec27c207fd691902f454f959e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.001 Malicious Link

The PDF file contains multiple heuristics indicating malicious intent, including a link to a known malicious redirector and a link farm designed for SEO manipulation. The document body, though heavily obfuscated, contains text related to 'new year eve' and a URL that aligns with the redirector heuristic. The primary attack pattern appears to be an advance-fee scam, leveraging a lure of a prize or lottery to trick users into clicking a malicious link. The link `https://ttraff.ru/pify?keyword=new+year+eve+2015+houston` is identified as a malicious redirector.

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=new+year+eve+2015+houston In PDF document text
    • http://files.gregorystringfield.com/uploads/1/3/2/6/132681337/jupado_temul_sasatom_fovozan.pdfIn PDF document text
    • http://files.biglittlethingsfoundation.org/uploads/1/3/2/6/132683334/dufakop.pdfIn PDF document text
    • http://files.elationcommunityvoices.com/uploads/1/3/1/4/131408798/pexojar_ketoluxuxu.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/1/0433/9970/8821/files/65943820611.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0006/2367/files/50004395748.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8059/8172/files/9718712721.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1351/9006/files/how_to_clear_cache_on_macbook_pro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5793/7561/files/67201898843.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5757/0207/files/vistaprint_business_cards.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7513/2824/files/nurotaxonejixakifip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5129/4619/files/sodusamujupa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7221/6483/files/48070436294.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9761/0657/files/nozosudawuwuretuxiseteg.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
🗂 Part of campaign: elationcommunityvoices.com 3 samples

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_off00010698.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10698 5412 bytes
SHA-256: 39bff2d920b4c79a4158c608f63c05eb9bc5361b6fc2acc4bcb97c4a1258672a
font_01_sfnt_off00011924.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11924 10760 bytes
SHA-256: 38dfd2bdbfa176cd64dd1f3953fb4491c3f5d977b5bcd1dab2872c52e33ba871

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