Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1793b3308043c1e…

MALICIOUS

PDF

43.5 KB Created: 2020-08-10 02:07:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: eec2d42d657ea0d5b766dd852819bf3d SHA-1: 08f27e9de7f19a76e155ab2fe0d1f9421471def7 SHA-256: e1793b3308043c1e995bd25c9994e9e9911ab9e15d1cb9be269bf84164766042
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with a critical heuristic firing for a malicious redirector. The document body is largely unreadable, but the presence of the URL 'https://ttraff.com/pify?keyword=canonical+authors+in+the+philippines+and+their+works+pdf' and the heuristic 'PDF_SEO_LINK_FARM' indicate a likely attempt to manipulate search engine results or distribute further malicious content through a link farm. 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=canonical+authors+in+the+philippines+and+their+works+pdf In PDF document text
    • http://files.socalwelding.com/uploads/1/3/0/7/130776401/nuriwarelafepig-zedupepel.pdfIn PDF document text
    • http://pozusixil.wingrabrittanys.com/uploads/1/3/1/0/131070161/2352110.pdfIn PDF document text
    • http://files.toomanyshirts.com/uploads/1/3/1/3/131384127/2454475.pdfIn PDF document text
    • http://files.npxcasting.com/uploads/1/3/1/0/131069819/7982132.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/1/0430/8749/5322/files/pufaji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9897/1038/files/58057803152.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5010/6018/files/88066452733.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4634/5640/files/35009343334.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0921/1557/files/91060691094.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3698/2944/files/65105316198.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0831/7850/files/navikubodim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5732/3933/files/53568931699.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5062/2358/files/best_books_to_read_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/86339923842.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7825/4753/files/64247147334.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_off00006b36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B36 5304 bytes
SHA-256: 75dda18c35fd80dc9797f72c90fde48a3f536fe84df1a98355512330a9ecb593
font_01_sfnt_off00007d47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D47 10420 bytes
SHA-256: 4d610987194066da65f6418d5054b6aa248cad53ae5b4b54bc66b0f5987e7111

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