Malicious PDF — malware analysis report

Static analysis result for SHA-256 53b90f7d2959b22d…

MALICIOUS

PDF

40.9 KB Created: 2020-08-04 23:56:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8f71f766134f5cdf0fa20ca5dd34cfb8 SHA-1: 0bc60f46ecaa19c5448f340440de936aab53bb0b SHA-256: 53b90f7d2959b22da3e12cb10bf33db41cb6604bf42a578bf3c68a2acad66ab6
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=flavonoids+anticancer+pdf'. This URL is likely used to redirect the user to a malicious site, potentially for phishing or malware delivery. The document also contains a large number of embedded links, many pointing to Shopify domains, suggesting a link farm or SEO manipulation tactic to distribute the malicious PDF. No scripts were extracted from this sample.

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=flavonoids+anticancer+pdf In PDF document text
    • http://files.fieldstonepublishing.com/uploads/1/3/0/8/130873983/xitejo-jagekufiwepiri.pdfIn PDF document text
    • http://files.5271kofc.com/uploads/1/3/0/9/130969695/9186048.pdfIn PDF document text
    • http://files.hannahdarcy.com/uploads/1/3/1/3/131382141/d2f2f9.pdfIn PDF document text
    • http://files.thesilvergen.com/uploads/1/3/1/4/131406843/c7722f9f97555.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/1/0427/3831/9527/files/dezefanavevekofomusiwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3254/1344/files/daxal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5874/8837/files/japepifosudupud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5384/1560/files/mutifusizugejakoji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8774/1607/files/xomawepafuwibesajoguvirod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mowojemabedeju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3734/3387/files/eva_perry_library.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6254/9910/files/42807870955.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9138/5758/files/talevusisolalilarifod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2197/6220/files/timafo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6747/4087/files/43699587290.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9815/9769/files/80006449412.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bifezunelavezide.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 4

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_off0000616e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x616E 5164 bytes
SHA-256: 1395d64bec9ef81582eb08903062a198979c10106cdb67dfb867753caa18c0bb
font_01_sfnt_off0000731b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x731B 10424 bytes
SHA-256: 5f92382f0705e8eaae32b27b06ec703089795b4bce31377c37d0423a99ed5e56

Open this report in the interactive analyzer, or submit your own file for analysis.