Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff9aebfa261bea82…

MALICIOUS

PDF

55.5 KB Created: 2020-08-10 11:44:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 79b7618dd9f2f16da10ca1cc958bbce9 SHA-1: 28aec616547b669ce33ec948c3aba87e0520b761 SHA-256: ff9aebfa261bea8251500b089ad8bd5c584acf3164415293323a265fa8b83273
194 Risk Score

Malware Insights

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

The PDF contains numerous links, with a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK pointing to 'https://ttraff.ru/pify?keyword=intrusion+alarm+system+honeywell+pdf'. This indicates the document is designed to redirect users to malicious infrastructure. The PDF_SEO_LINK_FARM heuristic further suggests a large number of outbound links, likely for SEO manipulation or to host further malicious content. The embedded URL in the document body reinforces the redirection attempt.

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=intrusion+alarm+system+honeywell+pdf In PDF document text
    • http://rufop.greenblackdress.com/uploads/1/3/2/8/132814930/rukabidinude.pdfIn PDF document text
    • http://files.brightchildcdc.com/uploads/1/3/1/0/131070144/4246151.pdfIn PDF document text
    • http://files.langsidechurch.org/uploads/1/3/2/3/132303061/3cc50cd3e1.pdfIn PDF document text
    • http://files.palmhouserecovery.com/uploads/1/3/1/3/131382226/33874c0ff225efb.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/1/0434/6576/9113/files/131531001.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4044/0471/files/nelorofuxokumitinokumevu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9050/8960/files/dirivixizifedo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3127/2346/files/leboxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8859/3567/files/diremaxuvabonemami.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9975/4397/files/reading_book_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2384/2978/files/47622722948.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4087/4408/files/jupevojimi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8847/8365/files/62804492477.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1515/9458/files/gefigurafotobe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9862/8501/files/70677099518.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2668/4824/files/86022582409.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 8

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_off00009ab0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9AB0 5412 bytes
SHA-256: f85e543e0b2fa388024dde2eb776ee10cfaa542d03b355dd5f963848acfdd451
font_01_sfnt_off0000ad06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAD06 10496 bytes
SHA-256: 2dbcf19f79383c768ab3192bb511fcd602768230a97c0d48ae13e51070eb488b

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