Malicious PDF — malware analysis report

Static analysis result for SHA-256 611bdaac7249d4fa…

MALICIOUS

PDF

38.3 KB Created: 2020-09-12 17:20:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 841d4b1a4aec92866f81cb0e3cfd2418 SHA-1: 5e02877ec8df34b2ae6c87429da350fe5cfe89f6 SHA-256: 611bdaac7249d4fa6324aba2c238b154ee36becc289eaacf37480116a9a81f4a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to redirector infrastructure, including a primary link that appears to be an SEO lure for movie downloads. These links ultimately point to potentially malicious PDF files hosted on various domains. The ML classifier strongly indicated maliciousness, and the presence of a link farm suggests an attempt to distribute malware or phish for credentials.

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.link/pify?keyword=raghuvaran+b+tech+movie++naa+songs In PDF document text
    • http://xudosaj.boweltolerance.org/uploads/1/3/2/3/132302956/kajejenosoz.pdfIn PDF document text
    • http://files.nypdvolleyball.com/uploads/1/3/1/4/131483201/sijobu-bivamow-garonarunetiv-zexivipodo.pdfIn PDF document text
    • http://files.darkartsjason.com/uploads/1/3/1/6/131606390/vijafupewo.pdfIn PDF document text
    • http://files.thecramm.com/uploads/1/3/1/4/131437619/87511.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/7ff653_4b0a673f69ac44329cd71a5082a79684.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/ebcc4b_69f928c6ad554f55b0701cfb2a407fb1.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/5ad03d_fdeb2f74b75946dcb1be43d9627af48d.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_0d2c8329fb094d4db01d7011dc740726.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_d6c97b325978480dbf153dd2a6de8c26.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b18e4d_69de3e1c7acf41b2ac1ec774c1f1636d.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/3ab5ed_662ea47d9f2a4746a7bfad731d91916b.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/286fb8_9a72df7764994c8ea0c611471c2f7dae.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/ddb60a_3c1a8b5bbe884960a918671ea0ca084d.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/dcbeda_dd897176ebf9454ba87da89c7fd1fbda.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 6

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_off00004c52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C52 5388 bytes
SHA-256: 4960b5851a5ce2ea6f4202da83578d506121e8717cc16f842e3f1b0fcf44edb7
font_01_sfnt_off00005e8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E8B 14240 bytes
SHA-256: 17b7883c8265c2b799585ec7947ab6729ac1f99f45744282eab77a0b0af6326e

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