Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b2223a287362859…

MALICIOUS

PDF

79.2 KB Created: 2021-03-02 19:01:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 626d89c1aee301e57935bb9b42deedfe SHA-1: 38442df0afde3fbb2a8b537e431c26b610cb9768 SHA-256: 1b2223a287362859a3911384613252c4ed5458cf15bccb45ebf2e68db0e16371
126 Risk Score

Malware Insights

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

The PDF contains numerous external links, many pointing to disposable domains, suggesting a link farm designed to redirect users. The document body, though heavily obfuscated, contains a keyword related to garage door keypads, indicating a lure to attract clicks. The ML classifier strongly flagged this PDF as malicious, and the presence of many external URIs supports a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://mezovuduw.ru/award?keyword=how+to+program+marantec+garage+door+keypad PDF link annotation
    • http://0fruits.space/719585841645ygp0.pdfIn PDF document text
    • http://digtalcaliper09.xyz/chelate_effect_chemguide5ivjs.pdfIn PDF document text
    • https://cdn.sqhk.co/fovomesit/giibCgc/on_my_block_cast_spooky_brother.pdfIn PDF document text
    • https://cdn.sqhk.co/nudabesawi/5ydhh6R/soccer_smash_cake.pdfIn PDF document text
    • https://cdn.sqhk.co/salijuvam/0jen6ja/acellus_homeschool_rating.pdfIn PDF document text
    • http://rebelliona.online/1999_kawasaki_vulcan_1500_service_manualm48bp.pdfIn PDF document text
    • http://zdorovienashevse.xyz/tawawawowanadiz.pdfIn PDF document text
    • http://mishabelle.ru/hayes_school_publishing_co_worksheetsid6k3.pdfIn PDF document text
    • https://bogekivusuwi.weebly.com/uploads/1/3/4/6/134604255/823ab.pdfIn PDF document text
    • http://madewithsunshine.com/gesisiwt45zs.pdfIn PDF document text
    • http://autobaff.xyz/kikirodara6ftat.pdfIn PDF document text
    • https://cdn.sqhk.co/jarixizotib/uigigje/gojazupimoz.pdfIn PDF document text
    • https://ragulifogikub.weebly.com/uploads/1/3/3/9/133986704/466a73b6ac9a2d6.pdfIn PDF document text
    • https://cdn.sqhk.co/lojadisexudo/jaraY9f/93181670155.pdfIn PDF document text
    • https://seruborakumew.weebly.com/uploads/1/3/4/8/134849990/wamegog_dowakogedal_tufiminilarib_jorakip.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
    • 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e8f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8F3 5140 bytes
SHA-256: 9aed4aa9783d7c0c8c898d4e007a19c6ef05d3e12ae4a44bf1245256556f383d
font_01_sfnt_off0000fa5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA5E 10996 bytes
SHA-256: b3870919aba006e092acb7b2daef01c41c6ce4e1731d80aaf9589a3c31fff781
font_02_sfnt_off00011fc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11FC6 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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