Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e9b6020b8c02cd0…

MALICIOUS

PDF

34.7 KB Created: 2020-08-08 13:49:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 27059f6f09f72236b58d3f15b1fa07a4 SHA-1: 43dd7e83c6606313e868899207b3ac9a5dc38bb0 SHA-256: 7e9b6020b8c02cd08cd2507df9ad0006f0eb7cb858076145713a2b24a9e625b3
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.ru) that is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL, suggesting an attempt to disguise a phishing or malware distribution lure. The presence of a link farm heuristic further supports the idea that this document is designed to drive traffic to malicious infrastructure.

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.ru/pify?keyword=principles+of+accounting+pdf+noun In PDF document text
    • http://dapumid.toddphillipsmusic.com/uploads/1/3/1/6/131607062/7851807.pdfIn PDF document text
    • http://files.foxwoodarabians.net/uploads/1/3/1/6/131637135/3bca9a7e6bcf6.pdfIn PDF document text
    • http://ponena.yohmansgarden.com/uploads/1/3/1/8/131856158/141cd815cc2f.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/1/0436/4356/8278/files/research_methods_in_psychology_exam_questions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4218/6150/files/76584735622.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7030/7995/files/10093533341.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5466/9729/files/gunedutozelagi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2809/4882/files/71611440142.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1219/4463/files/xutazi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5458/7288/files/63806121864.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7184/0161/files/zutupamujegupurofusutatu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9648/8613/files/bitevinonugonemiperi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6856/4380/files/35171486968.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5866/7415/files/amsterdam_metro_map_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6493/3014/files/goxalozizikitipu.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 2

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_off0000481c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x481C 5324 bytes
SHA-256: f0da3e5d742d4004db0ffeb23dfd2c779d4f015faa59cacb06c99c34d766c0af
font_01_sfnt_off00005a43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A43 10096 bytes
SHA-256: 570c9e067ac22e676a0327132de57fed57161423823cc1589ef7d27381b48648

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