Malicious PDF — malware analysis report

Static analysis result for SHA-256 772e6f459094cdfb…

MALICIOUS

PDF

59.5 KB Created: 2020-08-15 00:45:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e794e2bbd94c8c0d21c79ad185765ef9 SHA-1: ffdfc1b3d2b376ddd901197993ee5205e3495151 SHA-256: 772e6f459094cdfb7ea4f5fa9925bb92a436d8e296f837c107865378dd1bdb72
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to a redirector service (ttraff.ru) that is flagged as malicious. The document body, though heavily obfuscated, contains a reference to the same malicious URL, suggesting an attempt to disguise malicious links as legitimate content. The presence of a link farm and a redirector indicates a phishing or scam attempt, likely to lead users to further malicious content.

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=classical+approaches+to+management+pdf In PDF document text
    • http://files.nickcutroneo.com/uploads/1/3/1/4/131438442/9206462c9e6ceef.pdfIn PDF document text
    • http://files.carlalbertbaseball.net/uploads/1/3/2/8/132815343/f8efc1f7ed014.pdfIn PDF document text
    • http://files.gwdancecenter.com/uploads/1/3/0/9/130969572/6154385.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/1/0437/6687/4269/files/15126950724.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6222/2232/files/tefefipagojudif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2710/2887/files/contract_extension_agreement.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7797/5717/files/anamorphic_format_app_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8649/5397/files/dediluxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4853/3142/files/webutofozalorezozefope.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2765/9932/files/kujafobikopewito.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9040/1687/files/watijodaduzo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2930/7293/files/68816088615.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/4736/7335/files/sos_slot_pokemon.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_off0000ac45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAC45 5476 bytes
SHA-256: 548d36a1b45069e048a9c0bf67810470d119c0dc6a42dbcb096a503076e6c4f6
font_01_sfnt_off0000beb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBEB6 10016 bytes
SHA-256: 9365325f72c77cc8ebfc6e0de9680ef2a2efab37e450152acf45a053f7839d55

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