Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b755205a44b6d6c…

MALICIOUS

PDF

72.5 KB Created: 2021-02-24 10:05:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 2f9865aa886ec70d9a4307ff8d504390 SHA-1: a1792c2e7007e02794f876be7f7fbf33e0e12ee2 SHA-256: 6b755205a44b6d6cfe145990c05bee3a90ba50bc47b9bb316e9bc350d800a502
126 Risk Score

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://maypoin.ru/aws?utm_term=how+do+i+charge+my+jackery PDF link annotation
    • https://cdn.sqhk.co/kofuvufexo/dXUgehf/3809537524.pdfIn PDF document text
    • http://okstore.info/somopakaxajumafina4iexj.pdfIn PDF document text
    • http://unreguezff.rest/jifopafoiwk2d.pdfIn PDF document text
    • https://cdn.sqhk.co/midusuworab/jgheidM/tuzoxipunerukesepatete.pdfIn PDF document text
    • https://cdn.sqhk.co/puvegipuros/jPggifl/ball_shooter_blaster.pdfIn PDF document text
    • http://sportplays.ru/68999769507nf74b.pdfIn PDF document text
    • https://cdn.sqhk.co/tisewesir/hhihjhd/67424657843.pdfIn PDF document text
    • http://1offpark.xyz/jurassic_world_hack_free8rpnb.pdfIn PDF document text
    • http://specialsale.info/carrom_game_rules_in_sinhala9epr4.pdfIn PDF document text
    • http://jukavoluv.iblogger.org/taviguzox.pdfIn PDF document text
    • https://cdn.sqhk.co/duxadikoti/e1hQic1/subobadilizaxosug.pdfIn PDF document text
    • http://kuliwajijet.22web.org/kerepuda.pdfIn PDF document text
    • http://sarelalitodidi.66ghz.com/how_to_calculate_training_man_days_per_employee.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vuvuvemalazot.epizy.com/royal_caribbean_ship_class_guide.pdfIn PDF document text
    • http://tirejazanapo.epizy.com/dobatose.pdfIn PDF document text
    • http://savipifuza.rf.gd/durozupazipunix.pdfIn PDF document text
    • https://s3.amazonaws.com/duzexefemosaxe/25607388851.pdfIn PDF document text
    • https://s3.amazonaws.com/sezewu/90999472292.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_off0000ddc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDC0 5436 bytes
SHA-256: 590389a2d5fc0badfe865159b47ba1ba89cd3a31a8d0c99730758b55be016898
font_01_sfnt_off0000f030.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF030 10956 bytes
SHA-256: 2247d5ae61f5a0a0da66e6f3f206a31c6a216c1dc27a808f820c26a7551930b8