Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a52a0232d7e8138…

MALICIOUS

PDF

53.6 KB Created: 2020-08-22 21:24:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c7821594a0940ebd904a980fefbd50ae SHA-1: 66a775ddd3d547354b72867129d3cfe6728a4a4b SHA-256: 3a52a0232d7e81388336b322bb6e08954c6905c384d77931d283e5d2e990a218
202 Risk Score

Malware Insights

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

The PDF contains a link farm and a direct link to a known malicious redirector, indicating a phishing or scam attempt. The document body, though heavily obfuscated, contains the same URL found in the redirector heuristic. The presence of a visual download button further supports the lure-based attack pattern. No scripts were extracted, limiting the analysis of further stages.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=best+bollywood+music++app+for+android In PDF document text
    • http://files.veljre.com/uploads/1/3/2/7/132712139/af67bf31cb9b0d4.pdfIn PDF document text
    • http://levixete.montenegroadventures.me/uploads/1/3/0/7/130740257/xevutopuxafaxasaw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1754/3588/files/fevarubokineboro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4261/1095/files/nutoguxos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4204/5090/files/reported_speech_examples_for_class_9.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3826/0903/files/37302452416.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0635/9714/files/95672188214.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/4059/6119/files/76696797589.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3028/1381/files/bsc_zoology_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0833/4744/files/27649417006.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8788/7526/files/35024477822.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9306/5881/files/it_inventory_template_xls.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1329/9620/files/lopatabomabiditexalakadul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0196/9820/files/vetuwirixarevizet.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000855b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x855B 5564 bytes
SHA-256: c34e9acc814579efeebaab9a36f505e25283f014723b2593b041e5da85ccd235
font_01_sfnt_off0000983d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x983D 10164 bytes
SHA-256: 269ec74b3cd0c2266127414dfe78be18a4144c773caaa2fe68a8870364a6dba1
font_02_sfnt_off0000bb10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB10 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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