Malicious PDF — malware analysis report

Static analysis result for SHA-256 2adc07d6327d2ee9…

MALICIOUS

PDF

76.2 KB Created: 2021-03-01 18:57:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: a1fa71b96b6a4a194e6a09f91dd01123 SHA-1: b789f8ca0fd726b18eada25298b1d77e38c9ab31 SHA-256: 2adc07d6327d2ee9c26b6e023df6416759dc1a35e357552e3cbfa6730186e7be
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://bologen.ru/wb?keyword=what%20is%20meant%20by%20light%20relief PDF link annotation
    • http://bettyloustintruckbbq.com/pafivanukobanemowumufovqjbu2.pdfIn PDF document text
    • http://hurricane1.space/biruvufenonedapejanifert3.pdfIn PDF document text
    • http://zahlungsservice-ch.site/40249930556a7mf1.pdfIn PDF document text
    • https://nupigefaxobabu.weebly.com/uploads/1/3/1/0/131070289/sugeveposidagi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500665/normal_60219c56554a7.pdfIn PDF document text
    • https://sazadasixitabe.weebly.com/uploads/1/3/4/4/134404720/nagezumomo_xamanara_nugirowigawako_gedusikadujux.pdfIn PDF document text
    • http://malespw.xyz/wevejavago7aa65.pdfIn PDF document text
    • http://varnisvakq.ru/riruwupovaw935z.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484114/normal_5fda5e3e62626.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/dobesogum/31692989639.pdfIn PDF document text
    • https://s3.amazonaws.com/xakajoziwibi/94435987914.pdfIn PDF document text
    • https://s3.amazonaws.com/xupizewuxere/aladdin_game_3d_free.pdfIn PDF document text
    • https://s3.amazonaws.com/getizar/bsc_1st_year_zoology_notes.pdfIn PDF document text
    • https://s3.amazonaws.com/batoragubukepo/posekivorojelujajexa.pdfIn PDF document text
    • https://s3.amazonaws.com/jopomodilamego/what_does_contemplate_mean_synonym.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_off0000ee87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE87 5436 bytes
SHA-256: ad3b2666c294778e2024e63271a14741e178fe4c12395eded11b7965d489c398
font_01_sfnt_off000100f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100F0 10320 bytes
SHA-256: f5d4164b4e7eea570650b8e7d8c83516638b3cb7d2758e8b5c93de29735e69c0