Malicious PDF — malware analysis report

Static analysis result for SHA-256 73d98bf6696e73a9…

MALICIOUS

PDF

40.9 KB Created: 2020-09-01 01:51:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d5f4ad8f47d7d145a7a69b6975ddf4df SHA-1: 2b787824b8b42f06457803aad51b8aba8cdbcaaf SHA-256: 73d98bf6696e73a9ec034c71222dc08245200b4bea005ffea3ec20dcaae92122
194 Risk Score

Malware Insights

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

The PDF contains numerous links, with a critical heuristic firing indicating it points to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/wix?keyword=payaliya+bajni+lado+piya+song++mp4', which is also flagged as a malicious redirector. This suggests the PDF is designed to redirect users to malicious content, likely for phishing or malware delivery.

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/wix?keyword=payaliya+bajni+lado+piya+song++mp4 In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/0a052f_c6cb350a875a421e97f03d67b9861067.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/1cfe37_1b9ccc4a6d22450f80be7853d49f7f99.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_a5e70e157be746149adf42f7af666429.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/6203b9_f04feea55405461f95b790473c65165e.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/97493d_dc33f63ab33a484997d506ad860bce6a.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3689/2584/files/pagirulagu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0130/6526/files/zitanuvafoze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9841/0918/files/97119177837.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/7938/5498/files/t_sql_ebook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0372/4455/files/66676587047.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/83f04e_163284a7cdfa454392cd5805e988761f.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_b98bb2402670435e9064fa46bdc5ad28.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/a640e9_ad7e27a44f3d4c7fa3430296a2a75061.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004513.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4513 5588 bytes
SHA-256: fb9374a8e24a5897de8a3dfa26c63664ced53f6779030a0692be469a8fb5458b
font_01_sfnt_off0000580d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x580D 9160 bytes
SHA-256: 7f6a353a8214b54a88f308abe2e1e4646bf99cf37565ad4cc70192ae5d744b32
font_02_sfnt_off0000774c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x774C 18776 bytes
SHA-256: 9e8409b995ac2b0bb76eb3eb8dd1c90fa55d1c1c8a40bb5daa08ca4080948d13

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