Malicious PDF — malware analysis report

Static analysis result for SHA-256 b61a47b1271dbd7a…

MALICIOUS

PDF

62.0 KB Created: 2020-11-21 16:41:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-07-15
MD5: 000cf116dac1654114fd2cf867f6db82 SHA-1: 5cd00e05caf05ef0a164c9ffd7b6a2d24304f9a2 SHA-256: b61a47b1271dbd7a832b0a364dcaed655ba68c49f7eb4fdec81e78777281305d
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://gettraff.ru/wb?keyword=miui%20browser%20apk%20mirror In PDF document text
    • https://nulosumewure.weebly.com/uploads/1/3/4/6/134645663/bf96f.pdfIn PDF document text
    • https://bivixogerixud.weebly.com/uploads/1/3/4/4/134469213/rakagetekekemuw-mejodivaminijap-fusojimulu-mijodabeb.pdfIn PDF document text
    • https://rurevudo.weebly.com/uploads/1/3/4/2/134265418/6185790.pdfIn PDF document text
    • https://gemaxudemaxepeb.weebly.com/uploads/1/3/1/0/131070646/boxatemet.pdfIn PDF document text
    • https://nipaxibovaj.weebly.com/uploads/1/3/1/3/131379211/tejebabeni-nesevofowafejo-gulufasobeger.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365567/normal_5f870dd22e987.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000b6de.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000b6de.bin)
    • https://uploads.strikinglycdn.com/files/b1303af7-a0e6-41c0-a7cd-cc93c3026b76/53620884627.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/82a3fa50-6a53-41be-9a1a-9ab8e2feefa0/zufavenot.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d884d816-ff4f-4b2a-8dd5-c8f3bdbd96da/90246603603.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/66b50c72-088f-4288-a077-ba8a528e9cb8/11095469131.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/299b747d-489f-4b6d-b074-6d5312e77853/fosokuvilavuzoturija.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 extracted file (font_00_sfnt_off0000b6de.bin)

Related samples 2

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_off0000b6de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB6DE 5236 bytes
SHA-256: c4bb969eb58f3b26fa771585a34ecf7ca203e25c5f40f8c4b2afe66a0389e1e4
font_01_sfnt_off0000c8b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8B3 10228 bytes
SHA-256: b20488bbce680c3462a666c0ec9d699567af8bb0c2d8f4768f0453d21c7862ff

Open this report in the interactive analyzer, or submit your own file for analysis.