Malicious PDF — malware analysis report

Static analysis result for SHA-256 275e8290fc96b3c1…

MALICIOUS

PDF

56.9 KB Created: 2020-08-12 15:31:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 940debba217e99aac87aa0050a0b7a25 SHA-1: 29101fd837b3a5a383bba78c01cf70f016dab8d2 SHA-256: 275e8290fc96b3c12c7f52af588eed3f9d297a8a8aed434a87e5f3c4db1a50d5
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to `https://ttraff.ru/pify?keyword=ambaji+aarti+free+download+in+gujarati+pdf+free+download`. The document body also contains this URL and other links, suggesting a lure for users to download content. The presence of a link farm heuristic further supports the malicious intent of redirecting users to external sites.

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.ru/pify?keyword=ambaji+aarti+free+download+in+gujarati+pdf+free+download In PDF document text
    • http://files.sarusfestival.org/uploads/1/3/1/4/131453894/3958547.pdfIn PDF document text
    • http://files.britemoonmarketing.com/uploads/1/3/0/9/130969535/3798217.pdfIn PDF document text
    • http://files.scarfandbow.com/uploads/1/3/0/7/130775192/1126f846a46b.pdfIn PDF document text
    • http://nopojobe.steamuptheclassroom.com/uploads/1/3/2/8/132814930/mevog-zawurut-welalajar-fexis.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/1/0430/7451/9201/files/possessive_pronouns_spanish.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0364/2007/files/72056847999.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0188/8416/files/13111961519.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1557/7504/files/27268619972.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8658/5749/files/66009070793.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5226/9717/files/limebiwixebixozupevero.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4414/1218/files/classroom_assessment_for_student_learning_stiggins.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6109/2255/files/36081513741.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7211/9193/files/26866725574.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4133/9045/files/como_aprender_ingles_libros.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2032/8864/files/90602389268.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 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_off000096ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96AB 5480 bytes
SHA-256: 351f7bbb98937c13428de09a7e6739eaa2ebfd590a8962b9af64aec1f9b953d5
font_01_sfnt_off0000a944.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA944 14372 bytes
SHA-256: 48b933fb640d765646c8cd8b3401cb6ceefb0d8aeebdf95e2f1b9c0c924927df

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