Malicious PDF — malware analysis report

Static analysis result for SHA-256 cca7e7815ebf5a29…

MALICIOUS

PDF

82.6 KB Created: 2020-09-28 17:30:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0127de3367fcfa21b011710f7db88556 SHA-1: 6802b8e890e7d68be23468e515ea14260822c782 SHA-256: cca7e7815ebf5a2987bbf0d91773416d4e49c9aaae20036a9c29f4f43e6e7c40
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing indicating a malicious redirector link. The embedded URL, 'https://gettraff.ru/mozel?keyword=atila+rey+de+los+hunos+pdf', is likely used to redirect the user to a malicious site. The document body, though heavily obfuscated, contains references to the URL, reinforcing its role in the attack. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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 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.
  • 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://gettraff.ru/mozel?keyword=atila+rey+de+los+hunos+pdf In PDF document text
    • https://site-1037233.mozfiles.com/files/1037233/19830678617.pdfIn PDF document text
    • https://site-1036884.mozfiles.com/files/1036884/pebazegelisametozu.pdfIn PDF document text
    • https://site-1037163.mozfiles.com/files/1037163/85690912880.pdfIn PDF document text
    • https://site-1036649.mozfiles.com/files/1036649/73158526604.pdfIn PDF document text
    • https://site-1036693.mozfiles.com/files/1036693/57655026615.pdfIn PDF document text
    • https://site-1037122.mozfiles.com/files/1037122/bepawitexut.pdfIn PDF document text
    • https://site-1037129.mozfiles.com/files/1037129/dufemekak.pdfIn PDF document text
    • https://site-1036621.mozfiles.com/files/1036621/6116835788.pdfIn PDF document text
    • https://site-1036828.mozfiles.com/files/1036828/38825161217.pdfIn PDF document text
    • https://site-1036851.mozfiles.com/files/1036851/51830502192.pdfIn PDF document text
    • https://site-1037091.mozfiles.com/files/1037091/97316783936.pdfIn PDF document text
    • https://site-1036881.mozfiles.com/files/1036881/3172003753.pdfIn PDF document text
    • https://site-1036818.mozfiles.com/files/1036818/67095686183.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/1/0434/0475/5096/files/vomurusem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7950/6847/files/imperial_carnival_glass_identificati.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5314/5495/files/bertrand_model_of_duopoly.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_off00010413.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10413 5220 bytes
SHA-256: 74f54bf4d7ff6ddd89a23463bab574330da1cab5132387f347d4245d4db198cb
font_01_sfnt_off000115da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x115DA 11688 bytes
SHA-256: 5eff5581e12c8a3b744c0c5d12e63b8d7209fda85750bc78c57614fd6a407ea4

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