Malicious PDF — malware analysis report

Static analysis result for SHA-256 192cc472c06849f3…

MALICIOUS

PDF

33.1 KB Created: 2020-08-19 11:48:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4f50b3bb6c7dae0c57e4d200bf9edd55 SHA-1: a9622aaa7012194ea2b050c35375e61a8117138a SHA-256: 192cc472c06849f34db4db6f2f04d114d95a34e03b81d522321feb4bdc832ea3
194 Risk Score

Malware Insights

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

The PDF document contains embedded links that redirect to a malicious URL, identified as a redirector for phishing or malware distribution. The document body text, though partially corrupted, mentions 'Calvary temple app' and includes the malicious URL, suggesting a lure to trick users into clicking. The ML classifier strongly flagged this PDF as malicious, and multiple heuristics indicate malicious redirector links and a link farm.

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=calvary+temple+app In PDF document text
    • http://files.curetypeone.com/uploads/1/3/1/3/131380121/dadf492e7ec13e.pdfIn PDF document text
    • http://files.mrscooksclass.com/uploads/1/3/1/4/131406811/momalono-gadowudevop-kewitejimum.pdfIn PDF document text
    • http://files.lomondlogs.co.uk/uploads/1/3/1/3/131383318/lasuk.pdfIn PDF document text
    • http://sutiw.perma-fun-k.com/uploads/1/3/1/3/131384401/tumabuzulumi-lonaliliwepinuz-tuxijonigite.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/1/0429/4233/3091/files/bumefapabi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5557/0341/files/creel_report_area_10.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8929/7568/files/22706053378.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7954/8580/files/94442686586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/54058680795.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4749/4567/files/kominigesekorivazis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4115/2406/files/jubukixit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4272/5275/files/97192983085.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0155/1771/files/chemistry_interview_questions_for_teachers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8319/2727/files/minecraft_keep_chunk_loaded.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_off0000470d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x470D 4856 bytes
SHA-256: 51a9afc7e38a25a7ea08f35dc2463fcb35b1fbb964dd2bf8d7d0f099cf405e7d
font_01_sfnt_off00005781.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5781 9564 bytes
SHA-256: bb5eba9da88217e6796b5e9a8ea09a05bf96e9bc0e537cf66f9c5b2324dbec67

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