Malicious PDF — malware analysis report

Static analysis result for SHA-256 955fed2282e004c9…

MALICIOUS

PDF

47.7 KB Created: 2020-08-25 23:58:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ed76672ebf61f462e4d022e94b528299 SHA-1: 0d1c44e32bae1436369eec561b30212dffebc9b6 SHA-256: 955fed2282e004c90a87ac3a52e7c308896ff59ee825cefdb3268b5883a83d33
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'. This URL is presented within the document body, disguised as a link to a yoga PDF. The presence of numerous other links to Shopify-hosted PDFs suggests a link farm or SEO poisoning tactic to mask the malicious intent. 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=yoga+asana+postures+and+their+benefits+pdf In PDF document text
    • http://files.jubileeandthestinkyfish.net/uploads/1/3/1/4/131454255/jufutu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0501/7255/files/37559654669.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9856/1948/files/a_very_short_introduction_to_analytic_philosophy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9018/2304/files/account_receivable_process.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4896/8090/files/15485074037.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1931/3053/files/xewin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6074/7688/files/74666454434.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4843/4840/files/ammeters_and_voltmeters.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0862/9663/files/darken_hex_color.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2384/2978/files/autocad_manual_for_beginners.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6196/8025/files/tonikofufavunu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8982/9800/files/baleluzulupedomojakevupes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2515/4716/files/sutopanarowawojenugopomu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6240/2967/files/xofujobewuvuguxefutanariz.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 3

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_off00006f1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F1A 5256 bytes
SHA-256: ddb157201f8be83da494e49a6c14d548dc7c57d0676d5eefbc288d2fef1ec062
font_01_sfnt_off000080e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80E4 10012 bytes
SHA-256: 807575c118a59462e5f491dc6f231992734aa3ffdcbf2067ba78736c723a37d7
font_02_sfnt_off0000a33c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA33C 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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