Malicious PDF — malware analysis report

Static analysis result for SHA-256 19173ef85c74254c…

MALICIOUS

PDF

73.8 KB Created: 2020-11-29 18:50:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-22
MD5: be16804db74e79522cafe99276152f2c SHA-1: fb63ae61d55458f3fb398ac0e5df91ff49d7c023 SHA-256: 19173ef85c74254c73814e99cb0a89826eaba5902b7b8d032a465c170640dafa
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://traffine.ru/strik?utm_term=fun+with+a+pencil+review In PDF document text
    • https://walugudosesex.weebly.com/uploads/1/3/4/6/134608180/susupobu.pdfIn PDF document text
    • https://posolefuriw.weebly.com/uploads/1/3/4/3/134374222/7411679.pdfIn PDF document text
    • https://gebekogekikak.weebly.com/uploads/1/3/4/6/134694855/gonezavatikadarusigu.pdfIn PDF document text
    • https://gutomaxitokivi.weebly.com/uploads/1/3/1/3/131383747/8070734.pdfIn PDF document text
    • https://zunesevofulopu.weebly.com/uploads/1/3/4/3/134385883/segojetuwif-zuwisomelababew.pdfIn PDF document text
    • https://fukikabigo.weebly.com/uploads/1/3/4/4/134457586/444e58b82d452ca.pdfIn PDF document text
    • https://kusuvafivubiret.weebly.com/uploads/1/3/4/8/134888197/7538325.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491412/normal_5fbd0adfdb4f4.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/lanubili/chicken_invaders_3_cheats.pdfIn PDF document text
    • https://s3.amazonaws.com/jadudusujuje/18018175164.pdfIn PDF document text
    • https://s3.amazonaws.com/wefemabeni/emulator_android_for_pc_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/mijedusovineti/28106497766.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5900450d-d057-40a0-90cb-5493267395a6/mukavole.pdfIn PDF document text
    • https://s3.amazonaws.com/vibuvomomuv/manual_for_farberware_deep_fryer_model_103737.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e5dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5DD 4952 bytes
SHA-256: d625eea1fb4bfa3b7c5cdca6f67104dbbbf78a23b70dee840aaa53413863e824
font_01_sfnt_off0000f6c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6C9 10548 bytes
SHA-256: bbca791ae8a1aca40a7941454ae5b899a6b3517fba69ae9cd1350e8d3c22c8cc

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