Malicious PDF — malware analysis report

Static analysis result for SHA-256 92e043724550fa67…

MALICIOUS

PDF

49.0 KB Created: 2020-08-22 19:50:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d9e3ef530894c9d6d371c42e693360e8 SHA-1: 48bce0271cb6850b0fbbeb359f623f189f10a910 SHA-256: 92e043724550fa676688eb2435fe62196590bf9e808727c789c353573b961064
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a known malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The ML classifier also strongly flagged this PDF as malicious. The document body, though obfuscated, contains text related to a 'feasibility report' and a URL that appears to be part of a link farm designed to attract search engine traffic, suggesting a lure for phishing or malware delivery.

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.cc/pify?keyword=feasibility+report+meaning+in+computer In PDF document text
    • http://files.nbhaky03.com/uploads/1/3/1/4/131453598/9614431.pdfIn PDF document text
    • http://files.iwanttobeanengineer.com.au/uploads/1/3/1/3/131383760/69766.pdfIn PDF document text
    • http://files.fbcwinona.com/uploads/1/3/1/4/131438353/2667a9f8.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/1/0438/0740/8290/files/39594962373.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6697/2577/files/35619462453.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3756/2779/files/fundamentals_of_fluid_mechanics_solution_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6658/0382/files/wumefajaduleboxolipejavup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4517/5971/files/kexujunip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4381/4556/files/bevars_naa_songs_mp4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2568/6951/files/31401532241.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9743/8875/files/revo_uninstaller_bagas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6289/4498/files/57559928811.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1538/7811/files/nsou_assignment_front_page.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2295/6197/files/tugazotugigen.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_off0000823c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x823C 5452 bytes
SHA-256: 022a6fd6f0cf84e30829902c07421db1fce8e5eb9276e327041dcd0fe42881fe
font_01_sfnt_off000094b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94B0 10076 bytes
SHA-256: 514b91e923fe45d6a011cf319be9a9ba673e1189ef88c2a1ef8a421ee243573d

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