Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5da47614c6c004a…

MALICIOUS

PDF

99.2 KB Created: 2020-11-21 21:20:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-28
MD5: e9f272688c75f2ffa3240a81dd8b5f71 SHA-1: 35b4c91d7ad2a8b13698555476815f791a7c3662 SHA-256: c5da47614c6c004a96782ca9d5c7804186d03163a06ed671788e45fb43e4ea8a
262 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://traffking.ru/123?utm_term=warhammer+40k+8th+edition+pdf+download In PDF document text
    • https://cdn-cms.f-static.net/uploads/4382778/normal_5f9e01cedffcd.pdfIn PDF document text
    • https://nowusunomotir.weebly.com/uploads/1/3/4/3/134314498/7023082.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382784/normal_5fb8297f668a1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386597/normal_5fb4be9ac169c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408871/normal_5f92843152d59.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418185/normal_5f9839170d9b2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447464/normal_5fa609c19562e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365536/normal_5f875f7c10e00.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500438/normal_5fab2f889e4ed.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/pavujiniz/ata_thyroid_nodule_guidelines_2018.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dc09ef7d-ae8e-4c91-82ff-a2bf8e2e7c9c/44303378323.pdfIn PDF document text
    • https://s3.amazonaws.com/mamukawaxatali/basic_thai_language_for_travel.pdfIn PDF document text
    • https://s3.amazonaws.com/risisipajole/contra_nes_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/nabifovu/naxarufulesapapudokelojul.pdfIn PDF document text
    • https://s3.amazonaws.com/nokiva/nososedubewinapevareg.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012765.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12765 5696 bytes
SHA-256: 508e65cb2818d31a93feb0c32d8b3fe27d049216fdf933b8c111c5c6260e59e9
font_01_sfnt_off00013abd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13ABD 15488 bytes
SHA-256: db906324bf3e6d52534142092b26c944d00d2fe538d1e9748750668c71417702
font_02_sfnt_off00016a42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16A42 16060 bytes
SHA-256: 1018660efa6a1a00280f0dbd6ee9814149b2344b9acf14d98de2cb76d1e712aa