Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a7db8f65ffb0f8a…

MALICIOUS

PDF

191.8 KB Created: 2020-08-12 23:17:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c8087e3681ad64241dd2f3d1078d8930 SHA-1: e983f9f5775234e24312f4170578ccf393e88f2e SHA-256: 9a7db8f65ffb0f8a1e517562d49549ea5523d89ebbcdee7b2f1aff3bed4982f3
134 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating a link to known malicious redirector infrastructure. The embedded URL, 'https://ttraff.cc/pify?keyword=arab+news+newspaper+pdf', is the primary indicator of malicious intent. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains the same URL, reinforcing its role in the attack. No scripts were extracted, but the presence of a malicious redirector link is sufficient to infer a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.cc/pify?keyword=arab+news+newspaper+pdf In PDF document text
    • http://files.buckeyehollowchurch.com/uploads/1/3/1/4/131454158/7de5d741a9.pdfIn PDF document text
    • http://bibexal.shopgirlcookies.com/uploads/1/3/0/8/130874050/566dfd50269.pdfIn PDF document text
    • http://files.selectricartists.com/uploads/1/3/1/4/131407655/2763129.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/1/0437/4583/7208/files/narumavojijoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9819/3573/files/33401898161.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0342/8515/files/airframe_structural_design_niu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9489/9864/files/10405458754.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3260/7894/files/gurigiwome.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1729/0407/files/47048853784.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6224/7075/files/57701615502.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8198/0317/files/pour_apprendre_le_franais.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8346/3832/files/79419307585.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7350/2361/files/halcones_de_venta_libro_descargar_gratis.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_009_off0002d13f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2D13F 19504 bytes
SHA-256: 4d8bbc37b25d2a4fd85a0ce883f19d4f0700f43d703fef1c109f3f373b40af57
font_00_sfnt_off00028f5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x28F5C 5224 bytes
SHA-256: 2cf897252494e2d0a579807e1afeca458644b7d1a1665ec871be98108b51c082
font_01_sfnt_off0002a136.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A136 15524 bytes
SHA-256: 88bdf8f89f1bff8dbc113db5302844e9a7bcb75550c4b36e8f3bcdcb3424be32

Open this report in the interactive analyzer, or submit your own file for analysis.