Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ce050f325072628…

MALICIOUS

PDF

207.5 KB Created: 2021-03-25 13:06:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: c87868c932f75d14d9220e9274443927 SHA-1: c9fecdabc117521ddf723554b559457ae0535a4f SHA-256: 9ce050f32507262887262ea851f1c5c0d79d70fabd348edd3afe1251c6f0d977
136 Risk Score

Malware Insights

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

The PDF document contains a heuristic indicating it is a phishing lure, specifically using an image to redirect users to a URL promising 'Gta vice city gun cheat codes'. The embedded URL and multiple other suspicious URLs suggest the primary goal is to redirect users to a malicious site. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9968

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://xezojetit.ru/123?utm_term=gta+vice+city+gun+cheat+codes PDF link annotation
    • http://tuwasukam.getenjoyment.net/what_does_bmw_service_engine_soon_light_mean.pdfIn PDF document text
    • http://libopadu.scienceontheweb.net/thomas_calculus_12th_edition_chapter_1.pdfIn PDF document text
    • http://monubagujizud.mywebcommunity.org/isothermal_and_adiabatic_changes.pdfIn PDF document text
    • http://vazawujuzu.sportsontheweb.net/how_to_make_homemade_playdough_without_cream_of_tartar.pdfIn PDF document text
    • http://nevinidonet.mywebcommunity.org/autocad_export_printer.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/caa4cfd9-afc0-473d-a690-d5d073a8f9eb/sexitojavesafivenumum.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f24496b0-9a71-490b-8fb9-cdac301ebf3b/academic_writing_examples_essay.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cdc6e1ff-f3d8-45e3-a0a4-56b5018ce227/javogipajadulizoxesul.pdfIn PDF document text
    • https://19004eff-8f5e-45b0-b15a-9fbdbd99e39d.filesusr.com/ugd/578ea4_d2ba0ea8169d4954a9ea73890c3bc029.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/7260f84c-24c7-41f4-b447-534b8088747d/xevibuxidosotezafesuwozak.pdfIn PDF document text
    • https://s3.amazonaws.com/nimuwet/recognition_award_template_printable.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/144a87b0-6a27-475b-94f1-9b1ab6cb4fa8/sademogufewezevupapuwe.pdfIn PDF document text
    • https://c4bedd8b-a3e9-4aa8-9751-a6fde4035b7e.filesusr.com/ugd/037f08_47076627959c4ddf974afde81ef49d9b.pdf?index=trueIn PDF document text
    • https://8ed62699-7d02-4439-b935-4286882ef7d4.filesusr.com/ugd/229b11_c7f8aff0d92c4cbb854ba905f2e27f96.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/05962dcd-b2c6-4cb7-96f8-473d565b12ec/9756549425.pdfIn PDF document text
    • https://7162f0c1-3bb2-4775-9ad2-1e34613fb889.filesusr.com/ugd/595093_cbea4eef81b34cadbbdd11c9c3a71d47.pdf?index=trueIn PDF document text
    • https://c84d532c-3b33-47d6-96aa-4134a1164eb1.filesusr.com/ugd/6d45f6_aaea48b6408643cd8ee8e8341679df5b.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/gafedupeba/how_do_you_download_the_disney_plus_app_on_lg_smart_tv.pdfIn PDF document text
    • https://s3.amazonaws.com/voxulija/masayoshi_yamazaki_one_more_time.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b56940ce-d133-4402-9045-765d24ea07d0/dyson_v11_animal_cordless_vacuum_sale.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/683d57e3-29a7-4150-8066-32bb2c90a020/mutigokomub.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_off0002f2e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F2E9 5268 bytes
SHA-256: c59d25d4faa9bfcc1727511b84c51f91942851662a0f927c0a8c65e319f4e577
font_01_sfnt_off000304e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x304E5 12900 bytes
SHA-256: 525549063b21f47dc8432512db48dfc4e39c40989df25759bd252c6a5cf18ced