Malicious PDF — malware analysis report

Static analysis result for SHA-256 c46fca3d20fcb5ca…

MALICIOUS

PDF

40.2 KB Created: 2020-08-17 00:51:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6285e27548a7a1a3d3173dfb2456d927 SHA-1: afd0d677db7eaccfdf154869adae9f78eb2e2907 SHA-256: c46fca3d20fcb5cac8e626b18426d02f0b2525fcaabc420579c54d0b4b12694a
202 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one critical heuristic identifying a link to a known malicious redirector. The document body also contains text and URLs related to installing a 'videoder app', aligning with a social engineering lure to install potentially malicious software or browser extensions. The presence of a link farm further suggests an attempt to manipulate search engine results or distribute malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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=videoder+app++install+old+version In PDF document text
    • http://files.craftybearcoasters.com/uploads/1/3/1/4/131437307/mifesutezazovedugov.pdfIn PDF document text
    • http://files.sheeptales.org/uploads/1/3/0/8/130874252/xusasusezebifat_senotojaxez_pebep.pdfIn PDF document text
    • http://jigaveb.sailcnce.eu/uploads/1/3/1/4/131453630/zorefizesuvi_sasodizawunir.pdfIn PDF document text
    • http://timid.nyccovidrelief.com/uploads/1/3/1/8/131856772/lisinakef.pdfIn PDF document text
    • http://files.noelanipta.org/uploads/1/3/1/4/131453817/mubevaxetasa.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/1/0430/2848/0157/files/dubijilozikaxuvepav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8572/5850/files/public_administration_definitions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7098/8188/files/gufivinivopoxifi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4015/3505/files/dakegapulob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7141/5196/files/nelagiwodazokapidedij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5054/0964/files/lanisuxoruzen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9157/4430/files/soul_vessel_hollow_knight.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7577/1304/files/61327289402.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5435/7915/files/google_sheets_spell_check.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7274/9721/files/economic_importance_of_arthropoda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4101/2377/files/mental_math_worksheets_grade_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8086/8255/files/pagiw.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 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_off00006013.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6013 4976 bytes
SHA-256: 54e87e6c331c70744e7cba409363919033573267c880f1ee3851e950b4a980bf
font_01_sfnt_off0000710f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x710F 10160 bytes
SHA-256: f3e6d984dbfa756f82bcf4d2555af1e74bdae431bf5bb32b470c5828fda44808

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