Malicious PDF — malware analysis report

Static analysis result for SHA-256 97b020b1a986fe78…

MALICIOUS

PDF

33.4 KB Created: 2020-09-17 05:37:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 01ae42bb858df385c35f3cbd61cd934d SHA-1: 057c4fa0dd4c168ecf0e75e35e84178594355b80 SHA-256: 97b020b1a986fe78a5c957003b605daf455fc43ab01b6dc82c6e9897ec64456a
192 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a prominent link to 'ttraff.com' which is flagged as a malicious redirector, likely serving as a lure for users seeking free downloads. The document body, though heavily obfuscated, contains the same URL and other links that appear to be part of a link farm designed to improve search engine ranking for malicious content. The presence of a 'download button' heuristic further supports the social engineering aspect of this attack.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.com/wix?keyword=fear+street+pdf+free+download In PDF document text
    • http://files.dry4u.com/uploads/1/3/1/3/131380688/dujupuxeb.pdfIn PDF document text
    • http://files.rogersilvers.com/uploads/1/3/1/4/131438641/7200722.pdfIn PDF document text
    • http://mupomuxo.hrc-xray.com/uploads/1/3/1/6/131607063/9d78a628ecc.pdfIn PDF document text
    • http://files.ontariocustommasonry.com/uploads/1/3/0/7/130739472/2004041.pdfIn PDF document text
    • http://files.travelogues.smifh.com/uploads/1/3/2/3/132302924/lomesozem.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://5261f28c-ea67-4e85-a685-cab20affcbd9.filesusr.com/ugd/594ae5_7fa7a74a392f490b88c3a85b67997ea4.pdf?index=trueIn PDF document text
    • https://c5c0c8cf-52fb-46e8-bf80-6d180725315b.filesusr.com/ugd/f68081_2d385c43b30a4ed89a15f8981d2c7ced.pdf?index=trueIn PDF document text
    • https://40c0143e-d768-43fe-8bb5-835c5597bfa4.filesusr.com/ugd/a98ecc_d2d0a35ab3944b69bcbd72db33c4303e.pdf?index=trueIn PDF document text
    • https://0f18c24c-54b9-4191-91c8-3dfd5cd0cd7b.filesusr.com/ugd/c722c2_31da60eaf8274c9f85c3c31b8f2f0e4d.pdf?index=trueIn PDF document text
    • https://15d14b8e-7862-46c8-86d6-5e1103ea7224.filesusr.com/ugd/6f5f23_74053d17fc91445e8559bef4a788aa9d.pdf?index=trueIn PDF document text
    • https://b9433fbf-082a-4ec2-9368-5e3f61cc5760.filesusr.com/ugd/64e449_04e56b3d0091454c869756b691efb168.pdf?index=trueIn PDF document text
    • https://77386270-310f-4a59-84d9-7a334d132057.filesusr.com/ugd/d2751c_50f1902cceeb40298d779612a6e51b58.pdf?index=trueIn PDF document text
    • https://f3d936f9-6e7f-4baa-8b1f-1e90fe4b2cf6.filesusr.com/ugd/db93e9_a0b1985ab99e438bbfba8fe08c57e599.pdf?index=trueIn 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 5

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_off0000460a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x460A 5084 bytes
SHA-256: f1883505ae84c4168ad080ff46f13305636b2d1af848e1a46234b6c575983832
font_01_sfnt_off0000577c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x577C 9836 bytes
SHA-256: 8e3d57b86046434581b00c4e00f72ddc597f4e81b806a838c0fe5c8cc4f29f03

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