Malicious PDF — malware analysis report

Static analysis result for SHA-256 90823972388bc970…

MALICIOUS

PDF

49.9 KB Created: 2020-08-21 10:14:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 86da160738be9d1d59069adec45bac87 SHA-1: 64797c99cea0e71f856a6288c55d32059353047e SHA-256: 90823972388bc9702775811eb9949efa5d0e81d7e80abe994a23069ba0968b46
202 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with a critical heuristic identifying a link to known malicious redirector infrastructure. Another critical heuristic indicates a PDF link farm, suggesting an attempt to distribute malicious content or SEO abuse. The document body, though heavily obfuscated, contains a URL that appears to be a lure for movie songs, combined with a call-to-action phrase, further supporting a phishing or redirection attack pattern. No scripts were extracted from this sample.

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.
  • 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.
  • 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.ru/pify?keyword=narasimha+movie+songs++now In PDF document text
    • http://files.soaringtortoiseelectronics.com/uploads/1/3/2/6/132681596/1958130.pdfIn PDF document text
    • http://files.ofsilvermills.com/uploads/1/3/1/4/131482915/nusoramalawujezefok.pdfIn PDF document text
    • http://files.ed-gecation.com/uploads/1/3/1/4/131483214/8584785.pdfIn PDF document text
    • http://files.mindfulserenityonline.com/uploads/1/3/0/8/130874629/pezozulaleku.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/1/0429/9898/8949/files/bibanofivexadikov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7714/7547/files/toxegemuwak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5064/8223/files/64504169308.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9469/4304/files/warhammer_40k_necron_codex_6th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1033/4620/files/40290040084.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5131/7408/files/2892020204.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0481/3721/files/64563919338.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4653/5322/files/sibasudatojazisodopo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2177/0657/files/power_bengali_movie_video_songs_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0453/9206/8776/files/judawunudivozafopifi.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000807a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x807A 5188 bytes
SHA-256: b2a1573f301ddc12052f9a94ee834681611887e42186b8feea5956414762c99e
font_01_sfnt_off0000921a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x921A 12928 bytes
SHA-256: 71eabf3eb594d5a89d944050c566d9affefd940eb21adad5784407f4c5ba4c3f

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