Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0351569c8667158…

MALICIOUS

PDF

70.4 KB Created: 2020-08-14 05:00:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b914773c3da3c94486b308389303913f SHA-1: 1e98e03863620ae6f8f8d4cbb4101b11487febfd SHA-256: b0351569c86671587151db2bbaa816b3cabdd2fd3336ac61a99be0fa60b551dd
194 Risk Score

Malware Insights

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

The PDF was flagged for containing a malicious redirector link and a link farm, indicating a likely phishing or malware distribution attempt. The embedded URL 'https://ttraff.cc/pify?keyword=backless+lace+formal+dresses' is a primary indicator of malicious intent. The document body, though heavily obfuscated, contains this URL, reinforcing the attack pattern. The presence of numerous external PDF links suggests an attempt to obscure the ultimate destination or to leverage SEO techniques for distribution.

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.cc/pify?keyword=backless+lace+formal+dresses In PDF document text
    • http://bagipa.bmstamps.com/uploads/1/3/1/6/131606027/8049404.pdfIn PDF document text
    • http://files.joveneslibres.org/uploads/1/3/1/8/131871433/sirop_jaxedijajipak.pdfIn PDF document text
    • http://files.salvageddesigns.org/uploads/1/3/1/3/131380845/valewa_kiruwudugi.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/1/0428/9835/8432/files/48975286879.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xigazisamakolomomabixefox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3056/1447/files/timex_ironman_triathlon_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0428/7383/files/anemias_resumo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/8423/9268/files/search_text_layer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3339/5353/files/wujifutuvesuze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9179/6902/files/nudirufakexikuketan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/detewoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0816/2981/files/64507082231.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9896/4117/files/14279547255.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2845/3288/files/sibug.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 5

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_off0000d77c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD77C 5280 bytes
SHA-256: 295d64988e5548d5432e1d59d06e1a35352102385deab52b2a2387a005fa4850
font_01_sfnt_off0000e950.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE950 10276 bytes
SHA-256: e544404ad1622b05f5335c4ce6615e77126bfda7661ae18b9bd7a3b59365e0d5

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