Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f6352ec38fed38c…

MALICIOUS

PDF

40.3 KB Created: 2020-08-20 05:48:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c7d688502ceaacbfca819fcf851c96de SHA-1: 2e2953c5d1b988c6e76f7bd64438ae99d2ce9865 SHA-256: 2f6352ec38fed38c31456f5d1ad30a8a42242bc4d156f57a27467a5e13a213a9
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 a critical heuristic firing indicating a link to a known malicious redirector. The document body, though partially corrupted, also contains the same redirector URL. The presence of a large link farm suggests an attempt to distribute malicious content or engage in SEO manipulation for malicious purposes. The ML classifier also strongly flagged this PDF as malicious.

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=action+sheet+picker+swift+4 In PDF document text
    • http://files.villa-anggrek.com/uploads/1/3/1/3/131379371/difisudenaborex.pdfIn PDF document text
    • http://sosafig.odmont.com/uploads/1/3/2/7/132740373/49daa0b5621.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/1/0440/6516/1366/files/21120036479.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/48054684450.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7963/1012/files/tasiwofat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6395/1003/files/bonot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mudamizoxudaxusuzo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0754/8326/files/assam_tet_assamese_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1030/8765/files/nujetitupit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4229/0336/files/33828607194.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2175/3758/files/lofabojejusavagalamuwup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9776/0668/files/film_benyamin_biang_kerok_bluray.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5842/1142/files/business_dictionary_english_spanish.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7247/9647/files/57711269029.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 8

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_off00005e8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E8B 5092 bytes
SHA-256: 112755f04c423061a26b22b6a1f52a11feddf86d77844f28b9f52f6494c9d8de
font_01_sfnt_off00006fed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FED 10744 bytes
SHA-256: f1fd18b7c92f4278a72972c3ef76480b6e75bfe438909b5a7dc4674ba4e98534

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