Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d31dcad26dfc5c1…

MALICIOUS

PDF

104.0 KB Created: 2021-02-01 17:42:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-14
MD5: 205af9fde93f30bcafdb811cc91bc29f SHA-1: 7403faa7068471bba6576434d5afd4b21e9b7ac5 SHA-256: 0d31dcad26dfc5c1d34e68b4307f4b9702bb31d276b2e5d8c6cf7ff464a0deae
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://maypoin.ru/wb?keyword=my%20talking%20tom%20game%20free%20play PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4465924/normal_5fcd9972ae95e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487927/normal_5ffa5c7f0df42.pdfIn PDF document text
    • https://zurobalunaxul.weebly.com/uploads/1/3/2/7/132712088/1ea8cf349e.pdfIn PDF document text
    • http://tufilevazoropiz.iblogger.org/zenuveviv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366632/normal_60038981d50c9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427080/normal_5fcd96dbb62aa.pdfIn PDF document text
    • http://nufapivevavenak.22web.org/29982358266.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403560/normal_5feef2e781ea7.pdfIn PDF document text
    • https://wagimudo.weebly.com/uploads/1/3/4/4/134475497/fumuxo.pdfIn PDF document text
    • https://fufopijubotuxo.weebly.com/uploads/1/3/1/3/131381544/kedoves.pdfIn PDF document text
    • https://debimagobu.weebly.com/uploads/1/3/1/6/131637583/c0dc4fab6.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/sumesawoxajew/fagukojuradud.pdfIn PDF document text
    • http://reditab.epizy.com/final_fantasy_xiv_conjurer_leveling_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/pirofopafu/lightroom_cc_mobile_tutorial_app.pdfIn PDF document text
    • http://ludatijodibop.rf.gd/nikirujuveb.pdfIn PDF document text
    • http://pejefovad.epizy.com/american_express_platinum_card_number_format.pdfIn PDF document text
    • https://s3.amazonaws.com/saxefi/grok_learning_answers_python.pdfIn PDF document text
    • https://s3.amazonaws.com/xazarujokemus/avengers_4_endgame_tamil_trailer.pdfIn PDF document text
    • http://xafofeb.epizy.com/english_to_portuguese_translation_app_free.pdfIn PDF document text
    • http://sirilamezowi.epizy.com/238636645.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_off00015a94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15A94 5212 bytes
SHA-256: afc547ba8f0fbb440ec8998caab1fec25654002f9d1098a1b02837e6cf0dc76b
font_01_sfnt_off00016c5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16C5B 11300 bytes
SHA-256: 8d76bf4cfd70ac0e4d15e7440d06f976f14aed7756b3fd933af6de6333536c5c