Malicious PDF — malware analysis report

Static analysis result for SHA-256 01e5c29ea37aff98…

MALICIOUS

PDF

113.9 KB Created: 2021-03-01 08:42:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 64614bf78fa91c4e397668cca32a2bc6 SHA-1: 1cf19f4c28f1e509547aca17ff5e8f156f95fdde SHA-256: 01e5c29ea37aff9879ed6c336079cd1e3cfc5ad30fc927d907478b17e29a9f1e
126 Risk Score

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 0.9998

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
  • 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://mezovuduw.ru/strik?utm_term=what+is+the+size+of+an+ipad+mini+2 PDF link annotation
    • https://cdn.sqhk.co/susononuz/Pgfibq2/meteor_shower_calendar_2020_uk.pdfIn PDF document text
    • http://dusosax.66ghz.com/virtual_business_ingress_and_egress_sim_answers.pdfIn PDF document text
    • https://cdn.sqhk.co/vuvapolaxaj/idvAYjf/ninja_arashi_2_download_apkpure.pdfIn PDF document text
    • http://national-verifyteam.com/driver_booster_free_for_windows_10jw5w0.pdfIn PDF document text
    • http://idealica-italy.site/79195885237fixp0.pdfIn PDF document text
    • http://shop50off.info/biwizoruxuverarewn3.pdfIn PDF document text
    • http://alexandreablog.com/game_my_talking_angela_cheat_apko4eja.pdfIn PDF document text
    • http://betflixguvenilirmi.com/windows_10_update_lost_desktop_iconsfpquq.pdfIn PDF document text
    • http://sigipotewal.22web.org/9283906542.pdfIn PDF document text
    • http://avit0.pro/777_book8u836.pdfIn PDF document text
    • http://lexanizisujufum.66ghz.com/south_movie_comedy_scene.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lusalelafujijo.epizy.com/difage.pdfIn PDF document text
    • https://s3.amazonaws.com/kefodek/76423484330.pdfIn PDF document text
    • http://warepeg.rf.gd/anemias_carenciais_pediatria.pdfIn PDF document text
    • http://saxefixuk.epizy.com/jamopavimekelaruwadam.pdfIn PDF document text
    • https://s3.amazonaws.com/jozaponi/wawonek.pdfIn PDF document text
    • http://najubizep.epizy.com/will_my_harry_potter_wand_still_work.pdfIn PDF document text
    • https://s3.amazonaws.com/xufaxoferugod/website_reference_apa_format_generator.pdfIn PDF document text
    • http://tenasupufowok.epizy.com/bride_and_prejudice_songs_free.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off00018dbb.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x18DBB 25776 bytes
SHA-256: e2aff601ec47074771bc86e3fd05ed0d03b2338d0727266cd5d3a7df7dd5042b
font_00_sfnt_off0001515b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1515B 5348 bytes
SHA-256: f27c8dbe67b280b8f83fd30eac3b0bdb3feb4764110938d618e6277621ddcc28
font_01_sfnt_off0001637f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1637F 12308 bytes
SHA-256: 0483ef21c19a4759ef9929642be50d048ee84a746ef041904f92f1e117d2e398

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