Malicious PDF — malware analysis report

Static analysis result for SHA-256 80cc6f44b2cd4048…

MALICIOUS

PDF

43.8 KB Created: 2020-08-14 00:14:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2d366bf86e9ab9d0718b743f27c5adfa SHA-1: 86a12cd5b3a4fcdc7100b77fbd40a8d68abd9fe6 SHA-256: 80cc6f44b2cd404890c24d17a6cd89b2b502284cc7282a54f51340208dcf90c2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded links, many of which point to redirector infrastructure designed to obscure the final malicious destination. The primary redirector URL is https://ttraff.ru/pify?keyword=bibia+be+ye+ye++free, which is associated with a free download lure. The ML classifier strongly indicates maliciousness, and the PDF structure suggests an attempt to host or link to malicious 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.ru/pify?keyword=bibia+be+ye+ye++free In PDF document text
    • http://fowevikog.pcover.studio/uploads/1/3/0/7/130776855/9461262.pdfIn PDF document text
    • http://padowiwum.crawcainellc.com/uploads/1/3/0/8/130874085/4254f27c472ed2.pdfIn PDF document text
    • http://lurupeke.pinheadsquilting.info/uploads/1/3/0/8/130814407/98ca52d69b58.pdfIn PDF document text
    • http://files.institutotathagata.org/uploads/1/3/1/8/131871921/galix.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0582/1599/files/4041883996.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2439/2087/files/guwosozase.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5306/9974/files/mario_party_7_iso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tavolotifejenirogamofiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8288/1947/files/low_voltage_surge_arrester.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4294/6728/files/55516615023.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0110/1985/files/90882753957.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8590/3525/files/college_physics_tenth_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3502/3770/files/75685088131.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 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000058cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58CB 4336 bytes
SHA-256: 9e6f7cf163f68d19bca417b94b1f4b5e9d42c8508af46136380924a7a33056bf
font_01_sfnt_off0000678f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x678F 15004 bytes
SHA-256: f22e71189b3360ede463f58ef2d422ec4aedeecef026508cbbf0b05940908837
font_02_sfnt_off000094c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94C6 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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