Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f843b2c012f1854…

MALICIOUS

PDF

72.7 KB Created: 2021-03-10 02:11:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f50dc4bf6b4872afd6505e349641630e SHA-1: b5987ef66168ee8ffe116a2bb3ff147d32acb29a SHA-256: 6f843b2c012f1854dd1be87a3beddf65e2c9e74829880588c2528007674d8989
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://baarspo.ru/award?keyword=room+design+book+pdf PDF link annotation
    • http://davebamonuzove.medianewsonline.com/mapa_turistico_antequera.pdfIn PDF document text
    • https://velawavasikene.weebly.com/uploads/1/3/5/4/135400921/2519424.pdfIn PDF document text
    • http://vuvulusigi.scienceontheweb.net/does_1_rep_max_build_muscle.pdfIn PDF document text
    • http://mebesovinu.22web.org/37294911896.pdfIn PDF document text
    • http://storeyou.store/agro_ecological_zones_of_malawie5kie.pdfIn PDF document text
    • http://pasikufopubiwo.mypressonline.com/relimazosexegezas.pdfIn PDF document text
    • http://bapatavusirave.mygamesonline.org/yu-gi-oh_worldwide_edition_stairway_to_the_destined_duel_rom_cheats.pdfIn PDF document text
    • http://stopnutristrike.ru/55885277322vyhfz.pdfIn PDF document text
    • http://regvoolkim.website/62902545557jetjp.pdfIn PDF document text
    • http://solusaxisabo.scienceontheweb.net/what_does_extended_metaphor_mean_dictionary.pdfIn PDF document text
    • http://dabosesavedevet.medianewsonline.com/delonghi_2300w_ceramic_panel_heater_review.pdfIn PDF document text
    • http://natiral.space/ver_pelicula_beat_street_espanolm7s5g.pdfIn PDF document text
    • https://masudokunu.weebly.com/uploads/1/3/4/7/134731157/renabezibifu.pdfIn PDF document text
    • http://barajofa.mywebcommunity.org/pobejoranogewilalek.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://newikajoz.rf.gd/can_i_trade_penny_stocks_on_robinhood.pdfIn PDF document text
    • http://jufesibujubaji.rf.gd/berenstain_bears_youtube_episodes.pdfIn PDF document text
    • http://takerowul.epizy.com/star_spangled_banner_guitar_tab.pdfIn PDF document text
    • http://kikanelomer.onlinewebshop.net/32082194650.pdfIn PDF document text
    • https://f55c6975-0091-4942-a106-dc80285e5f9d.filesusr.com/ugd/8a4248_f5c1a94be8cc471f9a42ab9c87fd6b43.pdf?index=trueIn PDF document text
    • https://9eaa565e-fb97-40b4-b096-d6760803f699.filesusr.com/ugd/55e2c6_5902b8518bca4c968cb32b752ce59d9d.pdf?index=trueIn 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_off0000dfce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFCE 5236 bytes
SHA-256: 15dfea2d292c385e07cc371af4afb2b97c9dc19ea9f39796b49283e7f423d22f
font_01_sfnt_off0000f199.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF199 10548 bytes
SHA-256: 06d4ee91924eab2f5cc8f68f99107833684264dd641f5c05b580279aef94dc77