Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ff2be100fef12fd…

MALICIOUS

PDF

45.2 KB Created: 2020-08-21 17:14:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5816cc48bfd7f720448187f8acfc15af SHA-1: 673fa17f861f31883f67faa6d6d2ce0465d70beb SHA-256: 0ff2be100fef12fd44aa6e1876f487e41c12c068488023f75331d1bab398d1b5
194 Risk Score

Malware Insights

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

This PDF document is designed to appear as a legitimate file about car airbag systems, but it contains numerous links to an SEO redirector. The primary malicious URL identified is https://ttraff.ru/pify?keyword=car+airbag+system+pdf, which is flagged as a known malicious redirector. The document's structure and the high number of outbound links suggest a link farm or phishing attempt to drive traffic to malicious infrastructure.

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=car+airbag+system+pdf In PDF document text
    • http://files.wolkenfeldhomes.com/uploads/1/3/1/3/131382395/5640305.pdfIn PDF document text
    • http://bidawafiw.flockofbirdsmosaics.org/uploads/1/3/2/3/132302751/wedotojagixogidosove.pdfIn PDF document text
    • http://gitupow.neeleyhvac.com/uploads/1/3/1/6/131637016/3261172.pdfIn PDF document text
    • http://files.bkhouse.services/uploads/1/3/1/8/131856042/6379020.pdfIn PDF document text
    • http://files.pemmensgolf.net/uploads/1/3/1/3/131379612/febokibilodirina.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/1/0428/2066/5510/files/andis_blade_chart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7400/2837/files/81169990353.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2410/5124/files/sudibibakexutod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6334/4280/files/kavoxepisusosujabikopezir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1588/9305/files/fevogu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lozafawofife.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5893/8531/files/zulajopidusefojilo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4398/7361/files/69400774247.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0923/5355/files/voxujawiza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6479/2990/files/76834099238.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4836/0343/files/free_addition_practice_worksheets_for_kindergarten.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5331/8298/files/54789069847.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1720/6949/files/luranigaperamusizedubo.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000065cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65CF 5168 bytes
SHA-256: 37e253b7bacf4d87bfadf27a616eba1069d9628bc3e92d0d0bb88e11515b4f12
font_01_sfnt_off0000776c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x776C 10080 bytes
SHA-256: da31a17c26b0b5de37d7d3e8e09ab5c47ba5c0264edf6715c273bfb6a5d45295
font_02_sfnt_off000099e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99E2 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2