Malicious PDF — malware analysis report

Static analysis result for SHA-256 52ded1b7d9adfb4f…

MALICIOUS

PDF

47.8 KB Created: 2020-08-22 15:40:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e6870147cecc76e5574b875a23511e97 SHA-1: 002d778096d81a1a28f6bd09fa374f62bd6a7a5b SHA-256: 52ded1b7d9adfb4f2138fafaba3a40e219c7340697d13953fbc2b3265d9e279e
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one heuristic specifically identifying a malicious redirector. Another heuristic flags the document as an advance-fee scam lure, suggesting the links are intended to lead users to fraudulent content. The document body, though heavily obfuscated, contains text that appears to be a title and authoring information, consistent with a lure document.

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=humpty+dumpty+foundation+annual+report In PDF document text
    • http://bumuto.enotecaathena.com/uploads/1/3/1/3/131381130/xefop.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/1/0429/1674/1286/files/67278424506.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5059/8562/files/74352743847.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3702/2615/files/xixenabu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4504/4892/files/10414297167.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8014/7359/files/zegomadet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/4173/1239/files/buzanamovoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5018/0514/files/92944847197.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0891/7657/files/rovidafe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/6814/9151/files/eclipse_android_google_maps_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1407/9143/files/14978944880.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_off00007d70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D70 5072 bytes
SHA-256: 403ba93cb8017b2b417faa8e4cfba862c972b1518a378a58dd07b139fd206fb9
font_01_sfnt_off00008ea5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EA5 10532 bytes
SHA-256: 28214a0187cd22ad68a6b4ca8fe555fcae534fc1c1969b594e46f628860b55fe

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