Malicious PDF — malware analysis report

Static analysis result for SHA-256 5397602340f4b0fe…

MALICIOUS

PDF

43.6 KB Created: 2020-08-21 10:20:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 77d322da67cb87111c047a23d5e745e3 SHA-1: 6b6f1fb3de2efca764337c0334e820288b65a4d6 SHA-256: 5397602340f4b0fe28b09fa76021ba4186fdedecb97a0ae7781b94e1a6437868
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=audio+player+app'. This URL is presented within the document body, suggesting a social engineering lure. The presence of a PDF link farm heuristic further indicates an attempt to distribute content through numerous links. While no scripts were extracted, the primary attack vector appears to be user interaction with the malicious link.

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=audio+player+app In PDF document text
    • http://files.epiphanyexcelcenter.org/uploads/1/3/0/8/130874128/dejufuvuzu.pdfIn PDF document text
    • http://gonobe.artzplatform.com/uploads/1/3/2/7/132740764/50f111b2f.pdfIn PDF document text
    • http://files.paraspear.com/uploads/1/3/0/7/130775823/311e57eac.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/1/0430/3860/5461/files/78887081937.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9131/9200/files/vupewowudusovilusoripabe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0628/8291/files/id_checking_guide_2016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1989/3927/files/40605334614.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/2536/6945/files/ranalumemadote.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3733/3406/files/negenizasak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2226/2178/files/chesnara_plc_annual_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1407/6069/files/avery_label_maker.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7727/1716/files/givudane.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6799/8362/files/gijitezexi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1035/8423/files/brew_uninstall_mysql.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7691/0242/files/negebe.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 1

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_off00006e73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E73 4868 bytes
SHA-256: 9a4488d127795c803272f1782543699495f6641de1e3672d4ff94ab98a6f6344
font_01_sfnt_off00007f12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F12 10164 bytes
SHA-256: fba31ee70fd4d0504f9a43844153e84d4153c063a93a876df37ad7c186ffe5c5

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