Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbf97f3a19257494…

MALICIOUS

PDF

76.1 KB Created: 2021-03-18 00:07:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 348875b7a13507e074809dfefe6d3aaf SHA-1: 255cf2e0e0f252856e09090a94a0855566df88f2 SHA-256: bbf97f3a19257494d6ced5768d079a0b5620480f9c767d2fd5eebafbd2cd5e0e
126 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous external URIs pointing to various domains, suggesting a phishing or malware distribution campaign. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates the PDF is designed to host many links, often on disposable hosting, further supporting a malicious purpose.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9698

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
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
  • 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/award?keyword=mergers+and+acquisitions+tutorial+pdf PDF link annotation
    • https://rovoduwomu.weebly.com/uploads/1/3/5/3/135332400/luzaduvekedavix_xuwib.pdfIn PDF document text
    • https://jonimewogil.weebly.com/uploads/1/3/1/8/131860125/911482.pdfIn PDF document text
    • http://tiktokhd.design/venexusag7q3ve.pdfIn PDF document text
    • https://cdn.sqhk.co/bipufawawi/jbgfZRi/the_joker_hd_wallpaper_iphone.pdfIn PDF document text
    • http://vepenuvix.mygamesonline.org/maharashtra_6th_pay_commission_report.pdfIn PDF document text
    • https://cdn.sqhk.co/tujarazimok/Yibjaw6/specific_absorption_coefficient_equation.pdfIn PDF document text
    • https://verulezame.weebly.com/uploads/1/3/0/8/130814285/1b2e01ece250.pdfIn PDF document text
    • http://fazejajogavu.medianewsonline.com/how_to_set_citizen_eco_drive_watch_gn-4w-s.pdfIn PDF document text
    • https://wanevowak.weebly.com/uploads/1/3/4/4/134465130/gimulilev.pdfIn PDF document text
    • https://cdn.sqhk.co/fufowomusixi/1raPhjX/66877246261.pdfIn PDF document text
    • https://cdn.sqhk.co/pawanipol/geehbhi/tilopega.pdfIn PDF document text
    • http://reduslimitaly-official.website/what_is_meant_by_design_of_machine_elementsjvqzs.pdfIn PDF document text
    • http://garobunatuxovi.scienceontheweb.net/sharepoint_2016_tutorial_for_beginners_youtube.pdfIn PDF document text
    • https://vefonero.weebly.com/uploads/1/3/1/0/131070196/xadatavobowejobaj.pdfIn PDF document text
    • http://jamotovoxut.mywebcommunity.org/how_to_trade_stock_youtube.pdfIn PDF document text
    • http://duwosolutanuz.mypressonline.com/hijri_calendar_1442.pdfIn PDF document text
    • http://onlinetyz.xyz/2014_maserati_granturismo_mc_review6d36x.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/jolunenafobuw/what_is_solar_motion_sensor_light.pdfIn PDF document text
    • https://s3.amazonaws.com/baposivarabuj/ffxiv_shadowbringers_gunbreaker_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/tezofuretejom/ib_computer_science_syllabus_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/muxozuvalubi/sumabadikubixuluji.pdfIn PDF document text
    • https://s3.amazonaws.com/xezujuxoz/business_proposal_format_mail.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ea5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA5B 5336 bytes
SHA-256: cb77f8186ecb765e7523459f14c52e399db77432ee5d7310b1fe2b20ef0063ee
font_01_sfnt_off0000fc8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC8D 10776 bytes
SHA-256: 32ea66042a79900b0562123c52dc7177a4a9fee061fc41b49a55965cbd186a26
font_02_sfnt_off00012140.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12140 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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