Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b9c7ab45c798b20…

MALICIOUS

PDF

48.9 KB Created: 2020-08-06 12:58:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 68dc2080f960127fe798213c85d866c8 SHA-1: 14fbb7846285a5a4508ed5299bb3e023326bf732 SHA-256: 2b9c7ab45c798b20dd68997ed4bc48a5bb0743eb10fa00daa4169c91c13208af
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it features a mass external PDF link farm, with the primary URL hosted on 'cdn.shopify.com'. The document body, though heavily obfuscated, contains text fragments suggesting a lure related to 'Basel 1 accord pdf' and mentions the authoring application 'wkhtmltopdf', indicating it was likely generated programmatically to host these links.

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=basel+1+accord+pdf In PDF document text
    • http://files.paqu.org/uploads/1/3/1/8/131871894/vibofukupu_ruzererijolibij.pdfIn PDF document text
    • http://files.literidetree.com/uploads/1/3/1/4/131453990/e6f044.pdfIn PDF document text
    • http://files.masslibaz.org/uploads/1/3/1/4/131454316/e0c42.pdfIn PDF document text
    • http://files.rememberwhenphotos.org/uploads/1/3/1/3/131384638/soroso.pdfIn PDF document text
    • http://files.leonschainsawpartsandrepair.com/uploads/1/3/2/6/132696558/fc1355ae9111.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/1/0430/0174/1463/files/86937824752.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0210/1923/files/tubevabu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2270/5055/files/11149497500.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0686/0187/files/mozarusamagufozagegibodab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/20424522606.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6345/1560/files/65037189393.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5491/5993/files/mowura.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8875/6384/files/tedanumamof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9072/2454/files/kozojebulox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0844/2020/files/international_accounting_standards_39.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gaxedisurerikemamezawapux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9702/2879/files/70925108467.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0098/7811/files/airland_battle_doctrine.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_off000078ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78CA 5248 bytes
SHA-256: f261c7745f65db5f95921b355e493387287e1b24773b5383de8c622dc2788268
font_01_sfnt_off00008aba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8ABA 13696 bytes
SHA-256: 7dd3a3f30a053048d4abfc46da6acf2ae9d308e17510823d57012bd00756b55e

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