Malicious PDF — malware analysis report

Static analysis result for SHA-256 538d3c2d592eea36…

MALICIOUS

PDF

41.7 KB Created: 2020-07-23 11:49:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8156c108993399252a4c9fcc3e1dcaad SHA-1: e894bddb8c29f1f8b42124de7a8a4c4755927f5f SHA-256: 538d3c2d592eea36066016b2a41d4826ef28a1a94e53b395b7502e98d3ce6a78
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with heuristics indicating a 'link farm' and a 'malicious redirector'. The primary redirector URL, 'https://ttraff.cc/pify?keyword=one+piece+pirate+battle+apk', is flagged as malicious. While many other links point to benign Shopify domains, the presence of the malicious redirector suggests an attempt to lure users to harmful content. No scripts were extracted, and the document body was heavily obfuscated.

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=one+piece+pirate+battle+apk In PDF document text
    • http://files.materialcatolicoive.org/uploads/1/3/1/4/131454109/nuxifapekidaxawagiz.pdfIn PDF document text
    • http://files.jeecontentandcopy.com/uploads/1/3/0/9/130969939/sozafevupezifobiz.pdfIn PDF document text
    • http://files.pickyourstrings.com/uploads/1/3/0/7/130775737/4981318.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/1/0433/6071/4904/files/23557811502.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/66541571973.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0058/6649/files/gesagutipeluta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0940/0214/files/1229561991.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3529/5905/files/sonumakewozipavebeted.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4351/1706/files/3716695289.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0497/6548/files/fudusekagolafupuzerox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8028/6372/files/wopebodawumala.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/72438278193.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3387/8940/files/jomezexisebejatinivebup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1399/5672/files/8450632373.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0157/7625/files/47553845424.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 6

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_off0000660b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x660B 4660 bytes
SHA-256: b3a359f78d03df07bd1c2d66595b7262baab0c875b9b6d1f836ee5fe885bfcad
font_01_sfnt_off000075dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75DC 10576 bytes
SHA-256: c07fd03f2178b8644bb993b85699eaff2d9f27d641819841cf6b2fa237524e8d

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