Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b9685f27a9a8dd1…

MALICIOUS

PDF

85.1 KB Created: 2021-03-04 13:30:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 995ffffa74f6f1d4f612920253d48eec SHA-1: 26c0c299a0ab25dd0ce7357d3c75a1d118913f64 SHA-256: 3b9685f27a9a8dd19e89a355aa385ba6327032ae15488ca102ceefdc21e81d4a
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded URLs pointing to disposable domains, a common tactic for phishing or distributing further malware. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded links suggest it's designed to redirect users to malicious sites, likely as part of a phishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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/123?utm_term=defiant+flood+light+warranty PDF link annotation
    • http://xiwakaravivomik.scienceontheweb.net/boss_gt_1000_price_in_usa.pdfIn PDF document text
    • http://xuzerujagojagip.scienceontheweb.net/what_questions_to_ask_students_during_distance_learning.pdfIn PDF document text
    • http://jozipuvuwuzaj.mywebcommunity.org/head_first_pmp_6th_edition.pdfIn PDF document text
    • http://paxezot.getenjoyment.net/those_who_wait_book_haley_cass.pdfIn PDF document text
    • http://nout-prodat.site/kebetureniwizaximokarosunnsvfc.pdfIn PDF document text
    • http://dektesheff.xyz/sokifotagurarxiof.pdfIn PDF document text
    • http://repair-monokoles.ru/38053353735lwgq8.pdfIn PDF document text
    • http://makamar.online/tavisasipiwosununurenpfnyw.pdfIn PDF document text
    • http://tujemet.scienceontheweb.net/morasijimon.pdfIn PDF document text
    • http://hellesypakk.online/jibivikosipazejemomibutioknk.pdfIn PDF document text
    • http://budivev.scienceontheweb.net/2634095936.pdfIn PDF document text
    • http://lunatan.medianewsonline.com/the_law_commission_meaning_in_hindi.pdfIn PDF document text
    • http://futajef.medianewsonline.com/power_rake_service_near_me.pdfIn PDF document text
    • http://falorilipeb.mywebcommunity.org/kujijoxegebag.pdfIn PDF document text
    • http://xsale.trade/sticker_de_whatsapp_memes_apku7wiw.pdfIn PDF document text
    • http://itdomen.fun/wobalovveltb.pdfIn PDF document text
    • http://golosa-spasibo.ru/pizolezujzytu5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ligoroxenafof.atwebpages.com/judipesokivu.pdfIn PDF document text
    • http://liroporuki.myartsonline.com/how_to_replace_battery_on_ipod_classic_30gb.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_off00010eca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10ECA 5184 bytes
SHA-256: 0b75499c4b83d3ba4d6d309020644ac06ce190b04ec031090f8f0e88f7c8efd2
font_01_sfnt_off0001208a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1208A 11032 bytes
SHA-256: ecd6b81edec3f2400efc6980469e7b13517f942355348eaea7756aede67636f5

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