Malicious PDF — malware analysis report

Static analysis result for SHA-256 485a2375820a160b…

MALICIOUS

PDF

45.0 KB Created: 2020-08-07 01:08:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6d20e96f98ce82a70a0328478904b471 SHA-1: 6904c5ef567967dbbf0c352dc0998c5b61bb83c0 SHA-256: 485a2375820a160b49158e2a6e7dc46cf1c4d0eab40ee52bdad69a3980a7af4e
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying a malicious redirector. The document body, though heavily obfuscated, contains a URL pointing to a redirector service. This suggests the primary goal is to redirect users to malicious sites, likely for phishing or malware distribution.

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=acetato+de+dexametasona+creme+bula+pdf In PDF document text
    • http://xavol.artichokegallery.com/uploads/1/3/0/9/130969762/994177.pdfIn PDF document text
    • http://files.veroniquevanduurling.com/uploads/1/3/0/8/130814121/2250093.pdfIn PDF document text
    • http://files.leatherandlacestudio.com/uploads/1/3/0/8/130813948/jeraziwubi.pdfIn PDF document text
    • http://files.flowphoto-tahoe.com/uploads/1/3/2/3/132303238/vorejukimomup-nozigo-kavewes-poletusub.pdfIn PDF document text
    • http://files.nicolophobiaphotography.com/uploads/1/3/1/4/131452942/3685486.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/1/0437/9030/3393/files/zagamupasuzarenasog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9699/8048/files/dudefulunimomuwurazireg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1044/8798/files/vanis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3816/3623/files/midilaxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1092/4437/files/regujoxipebewerejezepak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4375/6954/files/530053131.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7921/2959/files/miscellaneous_compounds_inorganic_chemistry.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0781/9422/files/wepifi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4560/0936/files/60495438555.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8624/2209/files/bimewibarawalesamobiko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1734/6982/files/rebopivatatevavetezevapog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3057/6285/files/28889357056.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1097/3083/files/16408459453.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1297/9869/files/bofepukipupelok.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_off00006d0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D0D 5496 bytes
SHA-256: aeef708e08d1e7ad7ba40403fe5e8c85be9b5a557eb319e6103962f05efef643
font_01_sfnt_off00007fa9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FA9 12236 bytes
SHA-256: f206c873c186ef2f3f5730bb1605fddf37c400ff7e2edaec7e587b38f97b3503

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