Malicious PDF — malware analysis report

Static analysis result for SHA-256 9899e40afbd8fd6f…

MALICIOUS

PDF

77.5 KB Created: 2021-02-26 15:11:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: fc1b017bf3c3faa31fbb26a99ac16d62 SHA-1: 8806abc546fdeedbe4a1b26f5cbb60566a0f95cb SHA-256: 9899e40afbd8fd6ff2fdb7f006d6f9c69cbc1a8f098a37fa0a160fd64ee86d87
136 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
  • 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://mezovuduw.ru/award?keyword=what+does+recondition+mean+on+dewalt+battery+charger PDF link annotation
    • https://cdn.sqhk.co/penunotati/ibgoXgd/64160599972.pdfIn PDF document text
    • https://cdn.sqhk.co/vutowogipu/jejd0rZ/hitman_hide_sniper_rifle.pdfIn PDF document text
    • http://bimoriz.getenjoyment.net/the_gym_teacher_from_the_black_lagoon_reading_level.pdfIn PDF document text
    • https://cdn.sqhk.co/zejizoguzut/oLWBWhh/idle_defense_dark_forest_redeem_code.pdfIn PDF document text
    • https://cdn.sqhk.co/figakeves/1ZWbjeV/bus_racing_offroad_2018.pdfIn PDF document text
    • https://cdn.sqhk.co/metexemoraga/4lThci9/jupewejoxutage.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/daniwodug/73367056050.pdfIn PDF document text
    • https://s3.amazonaws.com/debamijizozexo/fisejodosejo.pdfIn PDF document text
    • https://s3.amazonaws.com/tikoweravisixu/kusezuresafadiduze.pdfIn PDF document text
    • https://s3.amazonaws.com/xamibudasagas/turboprop_flight_simulator_hacked_apk.pdfIn PDF document text
    • http://lobologexu.rf.gd/car_racing_game_video.pdfIn PDF document text
    • https://s3.amazonaws.com/xurixado/caffeine_informer_mcdonalds.pdfIn PDF document text
    • https://s3.amazonaws.com/legapatatezisa/all_star_cheerleading_uniforms_nz.pdfIn PDF document text
    • http://vumamuv.myartsonline.com/45289537010.pdfIn PDF document text
    • http://wotonopeg.epizy.com/telecharger_anime_slayer_gratuit_pour_android.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_off0000f352.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF352 5700 bytes
SHA-256: 8d1902380547184183bd5fc92f4e549f4bd57894d3101029b9eb4faf9a00898d
font_01_sfnt_off000106a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106A4 9992 bytes
SHA-256: 7692c58be98f34e74e560e82722743f6a90a388e76b4d6e2dc9a519eb8e7989c