Malicious PDF — malware analysis report

Static analysis result for SHA-256 168bcd49219b9068…

MALICIOUS

PDF

47.7 KB Created: 2020-08-09 14:01:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fca207a7d20b3d6f8fe543b8c081c1ba SHA-1: df12e6e46bffe0413969d1716ae3d8c1de06e52d SHA-256: 168bcd49219b90686b1c6ba5b2ccdca9f4dc05c3b766db3bee0aae0b6139c515
194 Risk Score

Malware Insights

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

This PDF file contains numerous links, including one pointing to known malicious redirector infrastructure at ttraff.com. The document body, though obfuscated, contains the same URL, suggesting a lure to trick users into downloading further malicious content. The ML classifier also strongly indicated maliciousness.

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=bsnl+249+plan+pdf In PDF document text
    • http://files.msdreyer4discovery.com/uploads/1/3/2/6/132695339/todisurufavafu.pdfIn PDF document text
    • http://files.dedhamfps.com/uploads/1/3/1/4/131437932/bulurokij-sawulos-pinerepiku-semimuwulef.pdfIn PDF document text
    • http://files.hamiltongrace.org/uploads/1/3/2/8/132814241/deratewaripizi.pdfIn PDF document text
    • http://rivaw.jleatherwoodtrading.com/uploads/1/3/0/8/130814328/wagaxifixetepip_wofajubibigekog.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/1/0431/7003/7917/files/dadoka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6455/6710/files/9674976849.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lenibokufilitixesokan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6649/8965/files/wibubuka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9847/2605/files/26350511120.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1420/7134/files/banking_act_1959.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fesulemenakasisot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/31492874922.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/61411835552.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/1328/8614/files/total_thyroidectomy_procedure.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6480/2982/files/zefafope.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000612e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x612E 5364 bytes
SHA-256: 8ee6ca61627c6c6f4f50b921b5dead36dff82b2a4fb3638348caaa808a1e0737
font_01_sfnt_off0000738b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x738B 12024 bytes
SHA-256: 26bdf7d66959a9d7d754e8a5ea3fa63a4f53f4398698b77ec042b88b7f442322
font_02_sfnt_off00009b28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B28 16164 bytes
SHA-256: e296a61d2d303e35be9e1a35631556663d2780498efa7e8f3867bf557f172fe6

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