Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fc328d23121a164…

MALICIOUS

PDF

48.8 KB Created: 2020-08-10 06:28:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 75198ac5fd6f6fcdea70d29f18c50c22 SHA-1: 24da55b168f12a69ba876406898f8ee9abdc5e0a SHA-256: 0fc328d23121a164c02b20049d5414f52b01b2f504db039c050d6b6752398e71
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, including a critical redirector URL identified as malicious. The document body text, though garbled, includes the phrase "Censer trial pdf", suggesting a lure for phishing or malware distribution. The presence of a link farm and a malicious redirector indicates an attempt to drive traffic to potentially harmful content.

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=censer+trial+pdf In PDF document text
    • http://files.concealedcurrencyentertainment.com/uploads/1/3/1/6/131606284/3048853.pdfIn PDF document text
    • http://files.howardcountytaxicab.com/uploads/1/3/0/7/130775950/389caaf872b551.pdfIn PDF document text
    • http://files.artemleaders.com/uploads/1/3/0/7/130775116/e5839db.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/1/0436/8426/6137/files/39023745476.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1482/3844/files/figumogoxemenoxas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5625/8454/files/53200956111.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3459/8809/files/constructivist_approach_to_research.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0185/5646/files/11143016865.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0568/8483/files/nipirurodikexe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0792/5654/files/98921830599.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6035/3429/files/peer_authentication_failed_for_user.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0755/7275/files/48473448233.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2930/6272/files/adding_fractions_worksheets.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_off00007571.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7571 4940 bytes
SHA-256: 90bd0ba0737bae800b17505876aaf1df3d3b91867cfac8d1c06062b2ba2c75ae
font_01_sfnt_off00008649.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8649 15188 bytes
SHA-256: c83efcf0fb0d2b027f8d6b346ff8636fdb316465287fee36fa8347065a46dca8

Open this report in the interactive analyzer, or submit your own file for analysis.