Malicious PDF — malware analysis report

Static analysis result for SHA-256 cede615e8de2bac5…

MALICIOUS

PDF

71.9 KB Created: 2021-03-06 09:53:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 64e3df90711924f956f403891e7df9e7 SHA-1: 534dcfe43b36ba590450bf89cf631ecd889482ed SHA-256: cede615e8de2bac562317883b159d94f18641e7141d6154b30d5a7d2bad3763f
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. 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 0.9997

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://nipisod.ru/aws?utm_term=what+do+rattlesnakes+symbolize+in+dreams PDF link annotation
    • https://cdn.sqhk.co/tixuniwe/S9lpwhb/how_do_you_say_hi_in_french_canadian.pdfIn PDF document text
    • https://cdn.sqhk.co/fiduzosi/dlhdawa/16788870094.pdfIn PDF document text
    • http://jazonezamivoka.22web.org/mango_capsa_susun_versi_terbaru.pdfIn PDF document text
    • http://sotovezi.22web.org/nadipiwozogalifobugokug.pdfIn PDF document text
    • https://cdn.sqhk.co/bujasugawo/gg1v2R1/83237997523.pdfIn PDF document text
    • https://cdn.sqhk.co/wuwexosul/giJheUR/92232310320.pdfIn PDF document text
    • https://cdn.sqhk.co/kajipazuto/dq82jf1/gumenowipulajobepun.pdfIn PDF document text
    • http://gifozuxozud.22web.org/jodha_akbar_tamil_video_song.pdfIn PDF document text
    • http://fesupopimos.66ghz.com/elsword_guide_elesis.pdfIn PDF document text
    • https://cdn.sqhk.co/businaxidare/CggFgg2/8808590473.pdfIn PDF document text
    • http://jesofafisozosa.iblogger.org/blackinton_badge_order_form.pdfIn PDF document text
    • https://cdn.sqhk.co/zopizote/ifGjeja/how_to_iron_shirts_without_an_iron.pdfIn PDF document text
    • https://cdn.sqhk.co/gofejenizew/d8iijcJ/72862086347.pdfIn PDF document text
    • https://cdn.sqhk.co/kelufuro/7c3Qtid/76294877622.pdfIn PDF document text
    • https://cdn.sqhk.co/fazejitev/jiqvThe/duwularafupiwemepegeb.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/374793c2-8cf9-4153-b221-d51ad9b8e268/1650680614.pdfIn PDF document text
    • http://zofewodugap.rf.gd/10709542359.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d211a577-4d95-47cf-a6a3-8e853b7b12bd/game_of_thrones_clash_of_kings_chapters.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/95fce528-3878-4f35-98aa-24bedf39462a/heat_and_mass_transfer_fundamentals_and_applications_5th_edition_solutions_chapter_1.pdfIn PDF document text
    • http://kugefosames.rf.gd/black_desert_mobile_global_apkpure.pdfIn PDF document text
    • http://luvenawow.epizy.com/what_do_the_chrysanthemums_symbolize_in_the_story.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_off0000dd7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD7A 5432 bytes
SHA-256: f553c59d04d071f389fd2b270530e54f7b85452121ce0eec515ab1f51fcd9c3a
font_01_sfnt_off0000efde.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFDE 10144 bytes
SHA-256: 0f1e9fdf547e471cd2c910ff95aadc29f537061ed2b653b679ce18b3595ce0d2

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