Malicious PDF — malware analysis report

Static analysis result for SHA-256 0805992285df9df5…

MALICIOUS

PDF

43.3 KB Created: 2020-08-18 20:59:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 462502a262d9557fa53a0cebeba0e58d SHA-1: 2ed94b9a15d4ce46e9383f252b97f069ad103811 SHA-256: 0805992285df9df5c9428ad1889341b818891b5aaa7898062082a51126bd4e5c
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to redirector infrastructure like 'ttraff.cc'. The document body, though heavily obfuscated, contains text that appears to be a lure for a guide, likely intended to trick users into clicking the malicious links. The ML classifier strongly indicates maliciousness, and the presence of redirector links suggests an attempt to lead users to a malicious site or download further payloads.

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.cc/pify?keyword=itsfoss+guide+install+linux+mint In PDF document text
    • http://files.bluelabelproducts.net/uploads/1/3/0/8/130813841/32879ff2c68e1.pdfIn PDF document text
    • http://kafag.ahrchurch.org/uploads/1/3/0/7/130776818/wizeboxuluge.pdfIn PDF document text
    • http://files.mhssportsclub.com/uploads/1/3/2/7/132740285/39b6699.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/1/0430/8323/5489/files/23555314069.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1536/2984/files/20187836102.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5310/4790/files/suzuzowibiwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1977/9742/files/20260244304.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7541/9798/files/xetiterigididufajak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4291/3952/files/13844377262.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6925/1492/files/10344612479.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1058/0903/files/comment_relier_plusieurs_ensemble.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0470/6464/files/45666437883.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8986/1535/files/productos_de_la_canasta_basica_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8256/1176/files/13618207315.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 7

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_off0000691e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x691E 5136 bytes
SHA-256: a1599f29f9f021cb9b90bdfca7af9945c72b393c646e9ed629ac72c4586fe634
font_01_sfnt_off00007a8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A8C 11080 bytes
SHA-256: 0811568b4ad8ab44737492140cb0c56e075ac522121d7cab2e343b7e974e7e85

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