Malicious PDF — malware analysis report

Static analysis result for SHA-256 466a73d4a66d819e…

MALICIOUS

PDF

83.2 KB Created: 2021-04-01 21:18:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 9fe02acf40d2e2ed271b6ed6e5c22919 SHA-1: 7353b0a7772047b142718fa220ddfd9326d550a1 SHA-256: 466a73d4a66d819e067e36439a68e567f067cf9a6666bb2d8428dfae836079a4
146 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses a callback-phone (TOAD) lure. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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://dugedepap.ru/strik?utm_term=craftsman+125+psi+1+hp+12+gallon+air+compressor+price+texas PDF link annotation
    • http://kowesaxulenim.22web.org/bairi_kangana_2_hd_movie.pdfIn PDF document text
    • http://oneitshop.info/88991958517dus1v.pdfIn PDF document text
    • https://cdn.sqhk.co/juxezijafoz/djiP9gj/72926530288.pdfIn PDF document text
    • http://max-lifting.store/88834170105n09q4.pdfIn PDF document text
    • http://zhk-rekord.info/sejusamedifavc5hyj.pdfIn PDF document text
    • http://tibuwajeta.22web.org/autocad_civil_drawing_download.pdfIn PDF document text
    • http://rankingcoach-seo.com/the_three_pillars_of_zen3dvhz.pdfIn PDF document text
    • http://eferevole.com/linkin_park_one_more_light_zip0sijz.pdfIn PDF document text
    • http://liko-sneakers.com/buwakajojixojivunarizusunjqbt.pdfIn PDF document text
    • https://cdn.sqhk.co/fugovigul/fiajfhd/72551134796.pdfIn PDF document text
    • http://weareanonymous.org/dragon_nest_warrior_class_guide4jia8.pdfIn PDF document text
    • http://reduslimitalia-oficial.site/apollo_twin_price_in_pakistandywi0.pdfIn PDF document text
    • http://steblin.pro/the_physiology_coloring_bookxzo4c.pdfIn PDF document text
    • http://chatik85939775.fun/best_python_book_amazonlo78w.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/a8f52034-debd-4bac-a9db-3116eaa4dec2/why_did_the_ten_percent_plan_fail.pdfIn PDF document text
    • http://xatosizukav.epizy.com/ejercicio_aerobio_y_anaerobio.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ad177676-d466-4afb-9938-a95847b3a73e/rufofafowujukujigosepa.pdfIn PDF document text
    • http://niwibobimitezof.epizy.com/28318337422.pdfIn PDF document text
    • http://satikemapobivix.epizy.com/50403133206.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/de31777e-4619-4cba-9474-2b9047e05420/bemikaro.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e2c0c541-a020-494b-b7f5-d1ff7c06bc38/king_arthur_and_his_knights_of_the_round_table_story.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4442df09-8f82-406f-aee7-112f4f9f886e/razer_blackwidow_ultimate_keyboard_not_working.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_off000103ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103ED 5708 bytes
SHA-256: 892c5e904907cefeefcc136706261e6a2cc2a071be9d4b81c0332a01c9ebd943
font_01_sfnt_off0001173e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1173E 11044 bytes
SHA-256: 408723fc9bc3ece58dae4da9b233ad36bc95f43f0b488ec2d1d60a01acf36207

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