Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dc858a6212c5976…

MALICIOUS

PDF

66.9 KB Created: 2020-11-24 05:39:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-30
MD5: 7932e2658283df0f210121fd86503845 SHA-1: c18758d8049f697d593a21f74c8fcb116491c6a1 SHA-256: 1dc858a6212c597602f786e0eadacfecd58843c5e29df5aebf68ef9f9c490c8c
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • 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://ggtraff.ru/123?utm_term=how+to+check+if+a+key+exists+in+a+nested+dictionary+python In PDF document text
    • https://sijoxedewi.weebly.com/uploads/1/3/4/3/134346210/dafusov-zagijafejewoxe-dubapimawaris.pdfIn PDF document text
    • https://lagafuxomip.weebly.com/uploads/1/3/4/3/134347440/demukewibef.pdfIn PDF document text
    • https://nuxagaselupig.weebly.com/uploads/1/3/4/0/134016775/forupemosovukidil.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497359/normal_5faf357e359df.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448343/normal_5fa7143e78562.pdfIn PDF document text
    • https://kenolafopufa.weebly.com/uploads/1/3/4/5/134528829/5f358b1c1.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/nuruvapozixix/string._format_integer_leading_zeros_c.pdfIn PDF document text
    • https://s3.amazonaws.com/pazerogasarinu/38542517220.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/91d4e717-9293-47f0-be31-c7e63367391c/bogukonagevurudedadan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/193348ab-e009-4efb-a329-3fca7c1871c1/5991079017.pdfIn PDF document text
    • https://s3.amazonaws.com/rotowan/gales_creek_campground_map.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bfef9d5e-f7a8-41f5-90b8-c762e2630922/62210842166.pdfIn PDF document text
    • https://s3.amazonaws.com/sivanira/35043737053.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxadol/86663672952.pdfIn PDF document text
    • https://s3.amazonaws.com/kizuporowefib/urotsukidoji_3_return_of_the_overfiend_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/voxulija/super_god_gene_pantip.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_off0000c6b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6B2 5500 bytes
SHA-256: 83a4722840c1f95a62dfdd19f3c243a9cdd976f38d7f60a634c4a12c352fcb46
font_01_sfnt_off0000d97f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD97F 10748 bytes
SHA-256: 3fb8549a4f46a5110fdd9094b65e964a2bc31ef0f3620cca19b7b9b98c60b8f9

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