Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e967f7467cede83…

MALICIOUS

PDF

76.6 KB Created: 2021-03-11 04:44:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: 2fabcc3a8b604f360113cd84aa9d7969 SHA-1: 2c2b555a0abd7807ffb9b6fb508e6416bc85cb07 SHA-256: 0e967f7467cede8386e1b00773ba4f6c474a128cc18dc227c8f818e027e02761
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to disposable domains, indicating a link farm or phishing lure. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a malicious document designed to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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
  • 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://bologen.ru/123?utm_term=android+9.+0+pie+easter+egg PDF link annotation
    • http://patajafurep.mywebcommunity.org/braun_series_7_mens_rechargeable_wet__dry_electric_foil_shaver.pdfIn PDF document text
    • http://skout.tech/why_was_the_21st_amendment_to_the_us_constitution_necessary_brainly9jpiz.pdfIn PDF document text
    • http://tgesheff.xyz/359643189288fo4b.pdfIn PDF document text
    • http://banquepopulaire-fr.org/best_skills_for_blitzer_blood_bowl_2s86vz.pdfIn PDF document text
    • http://mobile-media.moscow/29699100192dvw3a.pdfIn PDF document text
    • http://sale20.site/konuzotajediputiwenohnldn.pdfIn PDF document text
    • http://buwovavozu.getenjoyment.net/76257630527.pdfIn PDF document text
    • http://italdom.fun/vupapakirepinegiragoraverbjm2.pdfIn PDF document text
    • http://silver35.ru/what_is_the_average_age_of_a_homeless_person_in_the_uks6irv.pdfIn PDF document text
    • http://hh666o.site/sojewidalivirofuki08zpa.pdfIn PDF document text
    • http://igcopyrightforhelps.com/dixunuxadmdeq.pdfIn PDF document text
    • http://kajejib.medianewsonline.com/pibanekujelegesim.pdfIn PDF document text
    • http://ehaberdevlet.com/resmed_s9_autoset_clinical_menuf4nwf.pdfIn PDF document text
    • http://hydrofthol.space/midezopegugefubo5p7k.pdfIn PDF document text
    • http://lipazegeboludep.sportsontheweb.net/how_much_money_does_a_network_security_engineer_make_a_year.pdfIn PDF document text
    • http://doxedisipi.scienceontheweb.net/cancion_de_mi_burrito_sabanero_letra.pdfIn PDF document text
    • http://xijonofupawulo.mypressonline.com/what_is_the_job_duties_of_a_medical_laboratory_technician.pdfIn PDF document text
    • http://ig-verifiedsbadge.com/can_i_travel_if_my_license_is_expiredvvg8s.pdfIn PDF document text
    • http://tejowigasinafu.getenjoyment.net/price_ryobi_lawn_mower.pdfIn PDF document text
    • http://uaregroup.com/heat_conduction_equation_in_spherical_coordinatesav11u.pdfIn PDF document text
    • http://thecabinets.xyz/toyota_camry_xse_2019_red_interior_for_saleiii02.pdfIn PDF document text
    • http://kofupum.mygamesonline.org/65593276319.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nixomirorubu.myartsonline.com/how_to_thread_singer_heavy_duty_4411.pdfIn PDF document text
    • http://vexabimumemig.atwebpages.com/86173983357.pdfIn PDF document text
    • http://wififeju.atwebpages.com/rororifadulufilux.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_off0000ed7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED7C 5412 bytes
SHA-256: 30b478234f7107216c3c3dc20e626d29e2a451940e5eb80d2e0b637a551e21cc
font_01_sfnt_off0000fff7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFF7 10848 bytes
SHA-256: e491f55ecb1ab5ce1ffbc5608e0fb186ee242eeb216094d7532bd61fa2eb7cab