Malicious PDF — malware analysis report

Static analysis result for SHA-256 f529d41bc32d34fd…

MALICIOUS

PDF

271.2 KB Created: 2020-08-08 04:45:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0414ce7a5ded8fe7896a2455c606e0f6 SHA-1: 2251558ecc3dfe8064a21f9c2a84bf8708f14508 SHA-256: f529d41bc32d34fdf46fd67691df608de832066c0dc88ecc6e177253bce0949e
134 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com', which is also listed as an IOC. The document body, though heavily obfuscated, contains the same URL. Additionally, a heuristic identified the document as an advance-fee scam lure, suggesting the user is tricked into clicking the link under false pretenses. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • 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.
  • 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.com/pify?keyword=ielts+writing+ngoc+bach+pdf In PDF document text
    • http://desipu.decadesaudio.com/uploads/1/3/0/7/130775387/sawowatigewi.pdfIn PDF document text
    • http://files.athena-author.com/uploads/1/3/1/4/131437376/2733540.pdfIn PDF document text
    • http://files.kodalylevelsseattle.com/uploads/1/3/1/3/131398367/ralaseverore-satex-luzirubimip.pdfIn PDF document text
    • http://rudotew.spotlitekustomaccessories.com/uploads/1/3/1/0/131070450/zodopurilifaw.pdfIn PDF document text
    • http://zomisod.educarechildrenscentre.com/uploads/1/3/0/8/130874232/2227817.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In 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/1/0433/5671/7205/files/31512624791.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4292/0869/files/wetapuvexerirumirop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3178/7670/files/55821192376.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3171/4202/files/40575907917.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7329/0908/files/74279611709.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5713/6294/files/fuzawesuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2225/3208/files/albert_bandura_social_learning_theory_1977.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6805/4940/files/panera_catering_menu_prices.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0059/3557/files/grade_2_math_worksheets_ontario.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3182/2485/files/pasod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/19252536586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8520/9507/files/sales_and_marketing_skills.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6797/4556/files/26812440143.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003e0e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3E0E1 1572 bytes
SHA-256: e88443b14e86e4d13991448cb855da87db39bf6dffcfcd92cd5b657ce7a18dc3
font_01_sfnt_off0003e8e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3E8E5 5588 bytes
SHA-256: dee5bce88b1f423f5d0b2dba5e66de9cff2460e6efc17fb2bb342214b6f688fd
font_02_sfnt_off0003fbed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3FBED 21580 bytes
SHA-256: 472933cf207a88649da82af1ef00c974f9b55d5408af22f6cc3752bd6c57e0c2

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