Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a0dbca59a5ad21c…

MALICIOUS

PDF

76.2 KB Created: 2021-04-25 18:49:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 072ce121013eeafe95906aecb7e24e13 SHA-1: aef701c881f87d495b5abb417307cc9fd7659376 SHA-256: 3a0dbca59a5ad21c3d9d6de06e5567104d6ad014eec039bf25311be37d544d87
126 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ML classifiers and ClamAV, indicating it is likely a phishing lure. The document contains numerous embedded URLs, with one prominent URL pointing to a site that appears to be a link farm designed to redirect users. The presence of PDF-specific heuristics related to link farms and external URIs further supports this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 5

  • 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
  • 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://seumenha.ru/strik?utm_term=is+crossfit+cardio+or+strength+training PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4494429/normal_606bf589ee232.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404503/normal_5fdd2a2ed27da.pdfIn PDF document text
    • https://cdn.sqhk.co/tabewinudeka/jngc5jd/unknown_fate_apkpure.pdfIn PDF document text
    • http://xusetifawog.mypressonline.com/brahma_vaivarta_purana_kannada.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367286/normal_6003c6c17c82a.pdfIn PDF document text
    • https://cdn.sqhk.co/poxudanefisi/7gijfha/86485049042.pdfIn PDF document text
    • http://uk-delfin.ru/technical_analysis_for_dummies_book_reviewlimpb.pdfIn PDF document text
    • https://cdn.sqhk.co/vomuvojovi/ghjhojd/4_pics_1_word_level_2224.pdfIn PDF document text
    • http://nozumupi.medianewsonline.com/autocollimator_download.pdfIn PDF document text
    • http://buloshnaya.site/530327183390k792.pdfIn PDF document text
    • https://cdn.sqhk.co/wunokebewoz/ehfhcgg/word_collect_level_1515.pdfIn PDF document text
    • http://save50it.pro/think_and_grow_rich_movie_free_download0tx7j.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426550/normal_602381464c3b1.pdfIn PDF document text
    • http://good-production20.site/can_you_download_gta_vice_city_on_xbox_onezjpvu.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/14ae10ae-4fae-45e5-81dc-cf9d1e293e2d/jilelifanakanojuxefatofu.pdfIn PDF document text
    • https://s3.amazonaws.com/jafujasiwetid/57259416681.pdfIn PDF document text
    • https://s3.amazonaws.com/dufekifaral/dipokatotigifusotebexifo.pdfIn PDF document text
    • http://rogofideb.onlinewebshop.net/taxorufigej.pdfIn PDF document text
    • https://s3.amazonaws.com/vuxirefare/fubolofuz.pdfIn PDF document text
    • http://xukokumo.myartsonline.com/ea4500_default_password.pdfIn PDF document text
    • https://s3.amazonaws.com/jobavo/rowoxawudotugakiw.pdfIn PDF document text
    • https://s3.amazonaws.com/tutasujal/82857390551.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d2784c15-1006-4493-bd88-aa150b32acb5/coleman_powermate_5000_generator_carburetor.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f6c597ed-be62-4c96-b07b-ec3c8a58de43/grohe_kitchen_faucet_leaking_under_sink.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/deac869d-7911-46c0-a61e-8dac13bd6108/inferno_dan_brown_price_national_bookstore.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_off0000edcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDCC 5188 bytes
SHA-256: a8a7d47f610609a070e89e4b65642ce99cb12fe4e743558120284d0e744bb2bf
font_01_sfnt_off0000ff6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF6A 10476 bytes
SHA-256: a87d491eef0fe6c2907e879adc5e5655fa1c331775a3dca511e5a942e08a25e6

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