Malicious PDF — malware analysis report

Static analysis result for SHA-256 72ffd68fccc46fd5…

MALICIOUS

PDF

64.6 KB Created: 2021-02-13 10:45:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: a8bc83ba3eb07c1553987530c752d193 SHA-1: 26865a7ce5c1eaecefd2a547a3a08cdccb804bec SHA-256: 72ffd68fccc46fd553f98edbc623f3408100b694c88efe46f9c6503be746cc4b
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://druttle.ru/wix?keyword=gottfried+bammes+pdf+free+download PDF link annotation
    • http://workshop-fb.ru/70866895333xpiwq.pdfIn PDF document text
    • http://ipoteka.net/51844256465rrtrw.pdfIn PDF document text
    • https://niruzezigup.weebly.com/uploads/1/3/4/8/134889773/wowodazikisi-lufigase-vanozirududiro.pdfIn PDF document text
    • https://cdn.sqhk.co/rakujolo/hjzjdKK/piggy_book_2_roblox_minitoon.pdfIn PDF document text
    • https://cdn.sqhk.co/dafibuxoki/ij3iHje/blackpink_rose_real_name.pdfIn PDF document text
    • https://cdn.sqhk.co/rasepotobami/oighd5P/73898943552.pdfIn PDF document text
    • http://kulinarny.site/what_time_are_the_championship_football_games_tomorrowdlfxv.pdfIn PDF document text
    • https://mokabeninenaji.weebly.com/uploads/1/3/4/0/134013120/gijijatukobis.pdfIn PDF document text
    • http://jnatural.space/ppt_to_in_pythonp9cpc.pdfIn PDF document text
    • https://cdn.sqhk.co/vapadexeb/iHjeZii/galaxy_parallax_live_wallpaper_pro_apk_mod.pdfIn PDF document text
    • http://detonic-italy.website/kinetic_family_drawing_interpretation_guideoovf0.pdfIn PDF document text
    • https://cdn.sqhk.co/jivaduzar/ciM1Jic/underground_arts_philadelphia_pa_us.pdfIn PDF document text
    • https://wugeneziwepuzi.weebly.com/uploads/1/3/4/4/134494794/7086357.pdfIn PDF document text
    • http://remontnatali.ru/mesenteric_plexiform_neurofibroma_radiologyb7g4m.pdfIn PDF document text
    • https://cdn.sqhk.co/naxokujim/hIehdNF/vertical_vs_horizontal_joint_employment.pdfIn PDF document text
    • http://price-list.moscow/kisagakasekolomixokeboy9so8.pdfIn PDF document text
    • https://serarabasujuz.weebly.com/uploads/1/3/1/6/131606617/f39fe2c7f4.pdfIn PDF document text
    • https://tadomowiwelam.weebly.com/uploads/1/3/4/7/134744739/0af42226bb.pdfIn PDF document text
    • https://kamujepepafiga.weebly.com/uploads/1/3/0/7/130775209/vuwovesunajaj-lebemamotab-wokupep-penezumoge.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000c19a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC19A 5452 bytes
SHA-256: 0593e038089adc9bb042acd1e8ac71a163b48682ec4cf304d9798212a7d4eada
font_01_sfnt_off0000d418.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD418 9760 bytes
SHA-256: 9a4d1486777492900c5e9f17299a761cfc8d921501edbb7a1b9047d237559172