Malicious PDF — malware analysis report

Static analysis result for SHA-256 b000fcec3abd59b5…

MALICIOUS

PDF

63.5 KB Created: 2021-02-17 21:44:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 3b4ca7eba8dbfafc865fe956c438fbe6 SHA-1: 2643f5a60abd750b14b050e0558ea164de2773a6 SHA-256: b000fcec3abd59b5ee9b794ae86f5216548a6e3bae849f915b0522a9413115c8
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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.
  • 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://crophysi.ru/wix?keyword=fluidmaster+model+300+manual In PDF document text
    • https://cdn.sqhk.co/guwuweri/iUjbdje/gagasu.pdfIn PDF document text
    • https://cdn.sqhk.co/juzurupivepo/eie3XCM/vipomofipebeladabufiv.pdfIn PDF document text
    • https://cdn.sqhk.co/xakelafu/jigNXjg/19435118779.pdfIn PDF document text
    • https://senekuzoje.weebly.com/uploads/1/3/5/9/135978249/letorok-dotoxewa-vuzitajarepan.pdfIn PDF document text
    • https://cdn.sqhk.co/fexilejedit/WS7jLjb/walubiledudox.pdfIn PDF document text
    • https://cdn.sqhk.co/gixejefi/8ehgjo8/property_management_jobs_las_vegas.pdfIn PDF document text
    • https://cdn.sqhk.co/retesixabe/gep3geH/bearded_dragon_tank_size.pdfIn PDF document text
    • https://cdn.sqhk.co/sesexibanobu/itjehiJ/flight_delay_compensation_air_traffic_control_strike.pdfIn PDF document text
    • https://cdn.sqhk.co/mujawiru/ichgL1Y/pesawagilutex.pdfIn PDF document text
    • https://cdn.sqhk.co/suwuwewazaka/diiqhbZ/87769019165.pdfIn PDF document text
    • https://cdn.sqhk.co/melipetoluf/h6hbmQ6/lawn_mower_blade_hits_deck.pdfIn PDF document text
    • https://cdn.sqhk.co/xororofomed/jhiklwK/21551783421.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/xesigeze/78867951243.pdfIn PDF document text
    • https://s3.amazonaws.com/xalasawu/84573056605.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bc8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC8C 5232 bytes
SHA-256: 3755fbb761deff205100d85ced7a5cbf67227945ac45fa68563e3f21380d9a94
font_01_sfnt_off0000ce36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE36 10332 bytes
SHA-256: 54200fc0c3399f387db2cf58dd9e9c19d7e4215b89e78618a636aa2cc5a39f60

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