Malicious PDF — malware analysis report

Static analysis result for SHA-256 3053ccf90f3e5069…

MALICIOUS

PDF

82.0 KB Created: 2021-03-01 06:07:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 954c4368abc480fe6696a5385fa49280 SHA-1: e3743de6272c2a53983c5c5d74cf3d49321508fe SHA-256: 3053ccf90f3e506954e26e77ed103252358ae20704d1353ce3bb37969846c0db
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, with one specifically identified as a redirector to a malicious domain. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. The document body, though heavily obfuscated, appears to contain metadata related to a Dell Latitude E6540 datasheet, suggesting a lure to disguise the malicious links.

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://lozipotod.ru/strik?utm_term=dell+latitude+e6540+datenblatt PDF link annotation
    • http://garanibukumom.scienceontheweb.net/29536742333.pdfIn PDF document text
    • https://cdn.sqhk.co/rotuzuwibi/jiigjgo/vezojevakujetajuvo.pdfIn PDF document text
    • http://dafagaketa.sportsontheweb.net/mejores_apps_finanzas_personales.pdfIn PDF document text
    • https://cdn.sqhk.co/moromasi/idihfjj/61010634604.pdfIn PDF document text
    • https://cdn.sqhk.co/rurufimibiwe/fAxidge/tumblr_blade_runner_2049.pdfIn PDF document text
    • https://dufavepuxafolim.weebly.com/uploads/1/3/4/2/134266173/01d07.pdfIn PDF document text
    • https://guxitokos.weebly.com/uploads/1/3/2/6/132681611/todabuwodigefa-nibuwebukat-latelavob-bofogogozefuduk.pdfIn PDF document text
    • https://fuwiwidiwijidex.weebly.com/uploads/1/3/1/6/131637339/wapazu-mozivev.pdfIn PDF document text
    • http://ramuwesitavoz.mywebcommunity.org/bissell_proheat_powerbrush_carpet_cleaner_manual.pdfIn PDF document text
    • http://dinabosovub.iblogger.org/jafaxagesebe.pdfIn PDF document text
    • https://cdn.sqhk.co/giwumazusew/if9Dghx/animal_coloring_pictures_for_adults.pdfIn PDF document text
    • http://bonapimum.iblogger.org/58513612434.pdfIn PDF document text
    • https://robivitoj.weebly.com/uploads/1/3/4/3/134334713/3976220.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wujitotulofok.rf.gd/usos_del_acido_acetico.pdfIn PDF document text
    • https://s3.amazonaws.com/litunux/how_to_get_ham_radio_license_online.pdfIn PDF document text
    • http://pabotojixupi.atwebpages.com/barogoxomaminusa.pdfIn PDF document text
    • https://s3.amazonaws.com/xezujuxoz/97172950893.pdfIn PDF document text
    • http://benamow.myartsonline.com/gibugolipol.pdfIn PDF document text
    • http://minegavanifur.rf.gd/what_was_the_new_deal_great_depression.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f69b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF69B 5192 bytes
SHA-256: 90c5031f11e205253959da0205e35bc30f592c0aac11163ca0eb71625112fd70
font_01_sfnt_off0001085f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1085F 16528 bytes
SHA-256: 3b171d799097946671601f8e5aa41dfdb0811f94503b1b100b6b8968bced9052

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