Malicious PDF — malware analysis report

Static analysis result for SHA-256 6de972ba16e7906f…

MALICIOUS

PDF

32.1 KB Created: 2020-08-23 20:26:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3015349534a8b928cd898cc4195eb3b9 SHA-1: 51fa6499ce2bb0391b0d9c7e83096ce9bf70f958 SHA-256: 6de972ba16e7906fab478b6a0be5842b10e5a1c1bab5deebe39f83282186e721
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a redirector URL, identified as a malicious SEO link farm and a redirector for phishing or malware distribution. The ML classifier strongly indicates maliciousness. The embedded URLs, particularly the redirector at 'https://ttraff.ru/pify?keyword=video+games+lana+del+rey+sheet+music', are the primary indicators of malicious intent, likely serving as a lure for further compromise.

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=video+games+lana+del+rey+sheet+music In PDF document text
    • http://ludod.musicteachers.london/uploads/1/3/0/8/130813846/sewularosuvoz-girap-bewekemoseka.pdfIn PDF document text
    • http://dovif.leluxhomescents.com/uploads/1/3/2/7/132712354/321a8.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/1/0429/8535/7463/files/45702947970.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7578/9215/files/mac_terminal_commands_cheat_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4375/7992/files/5065690807.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6150/1336/files/best_secret_video_recorder_apps_for_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5725/8401/files/lisavedidesunaleboro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2728/1558/files/30685549684.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1698/5498/files/25949435849.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6113/9861/files/nupafovezodevi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7552/6051/files/hyundai_avante_xd_2020_manual_pdf.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_off000040fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40FB 5420 bytes
SHA-256: 3c0806fdeff7b5b4999b382b573ec2ff0bb9e31338273907657707858f76d130
font_01_sfnt_off00005341.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5341 9576 bytes
SHA-256: 926e6013996925d38669cc8155cb0b0667a3823f896d0b0e60ab75c923f89522

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