Malicious PDF — malware analysis report

Static analysis result for SHA-256 6474925e12a15d32…

MALICIOUS

PDF

73.5 KB Created: 2021-03-22 22:47:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 83d0be5ed57ee055357ea439af73730c SHA-1: 446f83b865741e2a72d969c5ae37ca76d1ed9659 SHA-256: 6474925e12a15d3273b7389039c29dd3f0ac8f4660af5febb019e35d70c7cfeb
124 Risk Score

Malware Insights

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

The sample was detected as a malicious PDF by ClamAV and an ML classifier. It contains numerous external URIs, with one heuristic specifically identifying it as a link farm on disposable hosting. The PDF_URI heuristic points to a URL that appears to be a lure for 'lottery ticket movie download', suggesting a phishing or scam attempt. No scripts were extracted, but the presence of multiple external links indicates an attempt to redirect the user to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8022

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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
  • 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://kuzutuzo.ru/wix?keyword=lottery+ticket+movie+download PDF link annotation
    • http://rexevivejegox.scienceontheweb.net/how_to_pronounce_alphabet_sounds.pdfIn PDF document text
    • https://cdn.sqhk.co/dikapagoloza/jgibjiO/xawositaradedopuxikopemob.pdfIn PDF document text
    • https://cdn.sqhk.co/rifebonapesi/Qg2vigG/brainlet_meme_template.pdfIn PDF document text
    • http://gibelineg.sportsontheweb.net/2834769724.pdfIn PDF document text
    • https://cdn.sqhk.co/tixuniwe/ZhbqrAY/comic_stars_fighting_3._6_games.pdfIn PDF document text
    • http://zozuwax.66ghz.com/fishing_guide_vanilla_wow.pdfIn PDF document text
    • http://sutiboju.sportsontheweb.net/tuwefukagapapatujirefow.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383561/normal_5fecd501962d3.pdfIn PDF document text
    • http://salukapebuke.iblogger.org/lamborghini_chalai_song_mr_jatt.pdfIn PDF document text
    • https://cdn.sqhk.co/pobumepova/ngi8ToO/autobiography_format_tagalog.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478125/normal_603a63fa82ac7.pdfIn PDF document text
    • https://cdn.sqhk.co/puzadowoke/gdAR9ih/only_one_you_preschool_activities.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rimamosapike.epizy.com/coloring_leaves_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/788a60b6-8111-49a5-992f-e358ca468f2a/our_lady_of_the_lake_university_basketball_roster.pdfIn PDF document text
    • http://nizalag.rf.gd/how_to_silence_sunbeam_microwave.pdfIn PDF document text
    • http://vovojoj.atwebpages.com/givire.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2ccccf10-fd8d-4d79-82bb-9c1f6db34e67/pobipomosifikobunumak.pdfIn PDF document text
    • http://zomudipanosu.epizy.com/writing_prompts_for_esl_students.pdfIn PDF document text
    • http://mejumobax.atwebpages.com/genesis_de_la_nacion_monarquia_federalismo_y_centralismo.pdfIn PDF document text
    • http://duxasowasosa.rf.gd/93641629700.pdfIn PDF document text
    • http://tunufefenus.rf.gd/chamma_chamma_video_songs_2018.pdfIn PDF document text
    • http://xirotowukutizu.epizy.com/76940452173.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a42e897a-00e5-43a9-97f0-28371ce2f5d3/how_to_reset_lowrance_hds_12_gen_3.pdfIn PDF document text
    • http://wapudajikipidem.epizy.com/baadshah_audio_naa_songs.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fa36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA36 5168 bytes
SHA-256: 1def45efd357d79b59639629c00188463fe5494da4dd51241c74dcf601d7d0dd

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