Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d2468f256152a8c…

MALICIOUS

PDF

40.9 KB Created: 2020-08-05 23:51:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: eca8fe9b2d0730a75484af3854babd00 SHA-1: 6a38888b11334066c3f72cd723557d00c04687ca SHA-256: 8d2468f256152a8c6e800a707c69ebc5cd257277978f030007a660d6bb4c07aa
194 Risk Score

Malware Insights

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

The PDF contains a link disguised as a printable cursive alphabet, which redirects to a malicious URL. The PDF_MALICIOUS_REDIRECTOR_LINK heuristic and the embedded URL confirm this malicious redirection. The ML classifier also strongly indicated maliciousness. The document body text, though partially garbled, contains the lure text and the malicious URL.

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=alfabeto+letra+cursiva+pontilhada+para+imprimir+pdf In PDF document text
    • http://files.judgedawsonyoga.com/uploads/1/3/1/4/131437247/doratisarubefofet.pdfIn PDF document text
    • http://files.charlottechiphi.com/uploads/1/3/2/8/132815767/mezimixariru.pdfIn PDF document text
    • http://files.acupunctureforpain.co/uploads/1/3/0/7/130740492/pevakafosu.pdfIn PDF document text
    • http://files.billbingerart.com/uploads/1/3/0/7/130740141/1603085.pdfIn PDF document text
    • http://files.drmeganparis.com/uploads/1/3/1/3/131379663/siguliterujodudiba.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/1/0428/9835/8432/files/juzopuzenafososokazulu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5148/2278/files/90306327586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8984/5671/files/22871023275.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2224/4250/files/thomas_calculus_13th_edition_solutions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tovaje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5808/6559/files/carol_of_the_bells_peter_wilhousky.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5340/7646/files/74984284972.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/57515970725.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1231/6584/files/70151149985.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0771/2155/files/vozejuzizifoketetib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/86662201832.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_off00005ffb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FFB 5584 bytes
SHA-256: a06dd6367cf187b4248e43f24efe16b30595246b340e4e7a0aa15773f719ce7a
font_01_sfnt_off000072d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72D5 10420 bytes
SHA-256: 01bdc4ce8489c68bb3937de9ea8caa3caf754f7b8605416b67e5fd62610c279d

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