Malicious PDF — malware analysis report

Static analysis result for SHA-256 b50c7a337b4db2fb…

MALICIOUS

PDF

42.6 KB Created: 2020-08-19 18:53:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 18b5d5d589374d51c5b19e255112d457 SHA-1: 5c19485e624b81ff8f4b7e80e99548c4073e15ee SHA-256: b50c7a337b4db2fb6d8a45cdac0c068ad67a24e659ffb0a4ff99a736d22ee5d1
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The ML classifier also strongly indicated maliciousness. The document body contains the URL https://ttraff.com/pify?keyword=header+footer+template+html, which is a known malicious redirector. The presence of numerous embedded links, many pointing to shopify.com, suggests a link farm designed to obscure the ultimate malicious destination.

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=header+footer+template+html In PDF document text
    • http://files.nariatlantablog.org/uploads/1/3/0/8/130814110/6600358.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/1/0428/0093/9164/files/lifutusufadozidilogeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2484/9815/files/27248194342.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5870/8118/files/99623528770.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7093/9541/files/34008101541.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gibowutobarifokegibig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3635/9326/files/84949065877.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7743/5556/files/60661787624.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0239/5813/files/feminolude.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8406/9526/files/apostila_apicultura.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1378/2173/files/rogex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7918/8118/files/gomunitebaliminoju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/6503/7220/files/november_bulletin_board_ideas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4929/4756/files/zabotubivaromazoxuwilagow.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000060a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60A6 5064 bytes
SHA-256: 64288b9a10e22b39f4d5a5418274136f1ba1115599362989aef18a200b2fb480
font_01_sfnt_off000071ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71AC 1800 bytes
SHA-256: 7b8594a721964324261f0c4ef05b4e52e30cb71ec654f650507ce2c009c366a5
font_02_sfnt_off00007a82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A82 10172 bytes
SHA-256: 9b949d248f5652084fe05080788c32f6c4406eb57d4cd7966e70f8325678f3f2

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