Malicious PDF — malware analysis report

Static analysis result for SHA-256 7df42946a5e2a25c…

MALICIOUS

PDF

43.7 KB Created: 2020-08-23 23:53:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b98cc0aa999c601292b34815fd468687 SHA-1: 117cbb02b14660c7cfd5d7da1bfcc42fb3e2911f SHA-256: 7df42946a5e2a25ccecb46cc538bbdfba1f9b7b751f020f402cd7f06c3bab15d
202 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirection and a link farm, including a critical finding for a PDF redirector link. The document body, though heavily obfuscated, contains a URL that matches the redirector found in the heuristics. This suggests the document is designed to trick users into visiting a malicious site, likely for phishing or malware distribution.

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.
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.cc/pify?keyword=installare+android+studio+su+linux+mint In PDF document text
    • http://nutoged.bakerycreationsbykeri.com/uploads/1/3/0/7/130739561/d0ff11.pdfIn PDF document text
    • http://files.emmazen.com/uploads/1/3/1/3/131381480/juviwoferuxo_tusosuj_dibarugi_mekipamave.pdfIn PDF document text
    • http://bezini.jfrancoist-shirtsdesigns.com/uploads/1/3/0/8/130813780/forom.pdfIn PDF document text
    • http://files.centerforessayexcellence.com/uploads/1/3/2/6/132681877/xuvaseva-tuxuti.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/1/0434/4345/4102/files/usmle_biostatistics_and_epidemiology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5401/3336/files/95230405501.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6420/5216/files/scope_statement_in_project_management.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9567/0427/files/1000_bible_study_outlines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0621/4819/files/model_aida_reklama.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3156/8290/files/56742096599.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dogudanivivakow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5156/4707/files/merit_amharic_english_dictionary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0669/7367/files/88333375879.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 4

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_off00005f14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F14 4860 bytes
SHA-256: 6f184e937c3136bc1728c7ee14065cc31bb3a7df81a8c87c18fda9ea2d84a298
font_01_sfnt_off00006f71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F71 10748 bytes
SHA-256: 1b4e3480a078418d70a37a16e42aa3ba543651382a0e2720cb136a750ff70d97
font_02_sfnt_off00009418.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9418 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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