Malicious PDF — malware analysis report

Static analysis result for SHA-256 f36245bd858f3dff…

MALICIOUS

PDF

40.1 KB Created: 2020-08-09 23:46:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e3290f8122bed5f24ae25294654e2f43 SHA-1: 854e9cf033af473ecda698dcf1b3f1f82c4ad3f0 SHA-256: f36245bd858f3dfff5b26a75050cf138fe02c8490330087c2448fd0caf76505c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link farm and a specific malicious redirector URL, indicating a lure to a malicious site. The ML classifier strongly flagged this PDF as malicious. The presence of numerous external links, including a redirector to 'ttraff.com', suggests an attempt to drive traffic to potentially harmful content, likely for phishing or malware distribution.

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=after+2+libro+pdf+italiano In PDF document text
    • http://files.charpentierteam.com/uploads/1/3/0/7/130738739/178383.pdfIn PDF document text
    • http://tobom.thejournalofpolitics.org/uploads/1/3/1/6/131606289/5862370.pdfIn PDF document text
    • http://files.exchangedragon.org/uploads/1/3/1/3/131380619/5abc534504c12.pdfIn PDF document text
    • http://files.ingeermusic.com/uploads/1/3/1/8/131856285/denugisevanaxi_jinezekuneb.pdfIn PDF document text
    • http://files.hbade.com/uploads/1/3/0/8/130815437/4457380.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/1/0437/5838/7349/files/pagigavebulufadil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9162/4096/files/nilerusam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0945/7825/files/43307735335.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1729/0406/files/40873591500.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5259/6374/files/urc_8820_cisco.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9151/6826/files/gayatri_mantra_meaning_in_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3436/1503/files/14036667614.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5009/8085/files/joxomul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0591/9903/files/65476211656.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3860/5461/files/mysql_removing_user.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7417/4622/files/juzubasixofipugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5428/5479/files/fomoligarelukukuzowubonix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8884/6753/files/venunanafiwanusawuxif.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_off00005f8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F8E 5120 bytes
SHA-256: 567a87084e8b2de746728fac1450c89ee422aa55c536a0b9bc6ea849c3415039
font_01_sfnt_off00007105.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7105 10108 bytes
SHA-256: 891b55150a2b03645a938e8188057de2adf6eb086ce78bdc1da4ea3d2962d7a7

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