Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f7428fa9cfb6d41…

MALICIOUS

PDF

61.0 KB Created: 2020-08-09 17:40:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6bc7767eb2705afb64af5abc5adfbaaf SHA-1: 0e55d130b9146c7f5d138b5f9e210f2e7e05e8e2 SHA-256: 7f7428fa9cfb6d41c6bc4ae352fc3898d10f8359d2d1ac7a12296e5b04afbdf9
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to redirect users to various PDF download sites, with a primary malicious redirector at 'https://ttraff.com/pify?keyword=aditya+hridaya+stotra+in+telugu+pdf+free+download'. This indicates a phishing or scam attempt to trick users into downloading potentially malicious files. The ML classifier strongly supports the malicious verdict.

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.com/pify?keyword=aditya+hridaya+stotra+in+telugu+pdf+free+download In PDF document text
    • http://files.ornamentsofexpression.com/uploads/1/3/1/4/131455883/vojosa.pdfIn PDF document text
    • http://files.wildstringsandthings.com/uploads/1/3/1/3/131384145/gufusixugawabu.pdfIn PDF document text
    • http://vibirakaj.dreamchen.org/uploads/1/3/0/9/130969754/xipudabepufidevezufi.pdfIn PDF document text
    • http://files.beneath1000skies.com/uploads/1/3/0/9/130969800/zoborepaw-sapupivutidu-jupumorus.pdfIn PDF document text
    • http://files.aquieditions.com/uploads/1/3/0/9/130969225/nataxageja.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1740/2530/files/gevidupuwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8122/7672/files/setex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8358/6977/files/vagosesewepufix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1243/1770/files/80177222193.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2289/8584/files/43753520573.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1754/3588/files/mowokerinevoxudarewun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7738/6918/files/titogufenatitimibi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4711/6197/files/wisujep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5384/1560/files/79168610165.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3943/8486/files/abebe_bikila_biography.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/96226605796.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_off0000667f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x667F 5484 bytes
SHA-256: f9130c7b7322c617d058c172909b1eaef56bd98d8f0f753f5aa5d7187d8f4582
font_01_sfnt_off0000793b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x793B 30004 bytes
SHA-256: cd0c11fa2a58d2802080e54467e3a7281a7b9ba052092a632b9d112b7c7142f3
font_02_sfnt_off0000b973.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB973 13724 bytes
SHA-256: c04e43d8956df4127589335425d940fd9fa8048d2f3304649f6bcb0129b5d21e

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