Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e3db17949366700…

MALICIOUS

PDF

101.4 KB Created: 2020-11-16 19:59:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-20
MD5: b8ebd64ebb139e01941a6691e8c99d9b SHA-1: 6e078dbe9762d4d8d5405dceb17660c51ab2b912 SHA-256: 4e3db179493667001f92dfac47b150bc56110eda5878537e5fd1c183cca750e8
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://traffking.ru/wb?keyword=film%20avatar%202016%20sub%20indo In PDF document text
    • https://xewebetolibas.weebly.com/uploads/1/3/4/3/134372476/5c15d536.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372104/normal_5f8d241a3ee68.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380405/normal_5f9679b57a553.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464530/normal_5fa85828e5c83.pdfIn PDF document text
    • https://zopopalolidipe.weebly.com/uploads/1/3/4/5/134500843/7539103.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/vonuxagupeduze/athetoid_cerebral_palsy.pdfIn PDF document text
    • https://s3.amazonaws.com/povodijirig/pawokoneguvimarefu.pdfIn PDF document text
    • https://s3.amazonaws.com/bagisi/zifoxibukofatikejovak.pdfIn PDF document text
    • https://s3.amazonaws.com/miwolezedubujoz/free_beat_maker_for_mac.pdfIn PDF document text
    • https://s3.amazonaws.com/defujo/gajiwikegatur.pdfIn PDF document text
    • https://s3.amazonaws.com/bugutaj/rezutipubamisuwusag.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/618e5a45-4d54-438f-bbad-c9a444d6465d/grand_summoners_luck_unit_tier_list.pdfIn PDF document text
    • https://s3.amazonaws.com/juxatop/parukusotu.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

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012bb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12BB5 5372 bytes
SHA-256: 2f800b314d881bc27838e63aa3303f4db9bed1c8e6e370984cabc7cbb7af7227
font_01_sfnt_off00013dc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13DC7 4836 bytes
SHA-256: 9e1857ba73d7321d1ce3ddcac7c8d1c86b580e47a831fe12fcb10210233d14f8
font_02_sfnt_off00014efb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14EFB 13484 bytes
SHA-256: 2662e78dfda8cca49fa7b14fd05a89580e78df81831244fe21714629b3310d61
font_03_sfnt_off000178ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x178EF 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3