Malicious PDF — malware analysis report

Static analysis result for SHA-256 fdce0f22b120d1e7…

MALICIOUS

PDF

81.9 KB Created: 2021-05-07 16:15:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-16
MD5: 8885b57d5a0b491db32d7edb6c96a910 SHA-1: d77c370a6c24626de167c8830abae8abcef4a581 SHA-256: fdce0f22b120d1e72b0da8773c21a231ff2573ae62b2b1ce57a7c8bd63d1b426
166 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File

This PDF document was flagged by ML classifiers and ClamAV as malicious. It contains multiple URLs pointing to disposable domains, suggesting a phishing or malware distribution campaign. The 'SE_BROWSER_INSTALL_LURE' heuristic indicates the document's content likely prompts the user to install a fake browser extension or update, a common social engineering tactic to deliver malware or steal credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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://jumiwimov.ru/strik?utm_term=how+to+pair+xfinity+xr2+remote+to+vizio+tv PDF link annotation
    • http://sizinepizot.scienceontheweb.net/business_continuity_plan_procedure.pdfIn PDF document text
    • http://hookup153.online/fazenigenibotepajowa6gyaf.pdfIn PDF document text
    • http://shtangelkipokupkiitd.online/70627906210qd9zj.pdfIn PDF document text
    • http://1xbet-registrat.site/5909627580wxmt7.pdfIn PDF document text
    • http://beautysale.site/10479681177wd3ij.pdfIn PDF document text
    • http://jolixasij.sportsontheweb.net/susolukajalurixavimubusi.pdfIn PDF document text
    • http://reawolt.online/what_kind_of_oil_does_a_2018_ford_focus_takesc37g.pdfIn PDF document text
    • http://liberum.sportsontheweb.net/assinar_com_certificado_digital_gratuito.pdfIn PDF document text
    • http://fenellalucynelle.info/48032696359s9oca.pdfIn PDF document text
    • http://copyrightsupportforlnstagram.com/justin_guitar_acoustic_songbook_song_listrw6c6.pdfIn PDF document text
    • http://ilkertr.shop/pinagesebezewekajalugixubh6tfw.pdfIn PDF document text
    • http://tedurelaseji.mygamesonline.org/blackout_text_mac.pdfIn PDF document text
    • http://air-calm2.club/11985889177deqxk.pdfIn PDF document text
    • http://xexapitanegis.getenjoyment.net/2000_jeep_grand_cherokee_limited_reviews.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wugujub.onlinewebshop.net/how_do_i_reset_a_trane_thermostat.pdfIn PDF document text
    • https://e216d865-ddc7-438b-99b2-64609380b1bb.filesusr.com/ugd/7ae8b3_10844cc742994258bb37d6ff94581a1b.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/15224b56-6510-4e46-8f0d-65fb8bd167a1/medikipikelimejelifawebi.pdfIn PDF document text
    • http://kakasis.onlinewebshop.net/list_of_all_important_days_in.pdfIn PDF document text
    • https://afa032df-bfad-47da-a9c8-c79260182993.filesusr.com/ugd/6f9b04_d4d6c01b14e94b63942f9713547da098.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/46617a4a-3a78-46ec-aad3-85744a69e274/introduction_to_modern_cryptography.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/127caa1f-d9fc-4b89-8cf2-644c0b3d8dd3/come_up_to_meet_you_tell_you_im_sorry_mp3_download.pdfIn PDF document text
    • https://95e354e6-8561-4e52-807b-deb85f3b5fdd.filesusr.com/ugd/ca9b0a_68a878e3c06b4198b8b014e58af2e9d0.pdf?index=trueIn PDF document text
    • https://8909b315-4d59-4940-aabf-0fdaa532e0ad.filesusr.com/ugd/4542d9_1fa317ccc1cb428cb8d299f367ee429b.pdf?index=trueIn PDF document text
    • https://8e0cabef-d481-4215-b437-8a5fc4e4723c.filesusr.com/ugd/f41140_80e60c2c1bda4081ba582b2c9fa53c15.pdf?index=trueIn PDF document text
    • http://vilatelisoto.onlinewebshop.net/meliwajesixanalobefapil.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_off0000fdda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDDA 5300 bytes
SHA-256: 247e9d56ca7772304cbf0ba3e1e1eb68a000e483438fa8d447bc0159bee8502e
font_01_sfnt_off00010ff7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10FF7 13800 bytes
SHA-256: 0664dde739a2767237c764d637ab0de2d2584c3293e339c1327c4f7d98500528