Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6466e86a1b04021…

MALICIOUS

PDF

73.2 KB Created: 2021-03-02 03:37:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 19afd57a1d4a6eba2c570a716072919f SHA-1: 5fe690464a2fac87e5e6138d96daac9462ad70d9 SHA-256: d6466e86a1b04021d0b7b690cec58458b6924778ad3629957aa567209a6dd58d
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://resalured.ru/wix?keyword=how+to+get+free+fortnite+accounts+generator PDF link annotation
    • https://fapufeloku.weebly.com/uploads/1/3/1/0/131071019/4547792.pdfIn PDF document text
    • http://jonebukusopovet.mygamesonline.org/cursos_de_ingles_quais_os_melhores.pdfIn PDF document text
    • https://pulezigo.weebly.com/uploads/1/3/4/6/134600697/wupunep_pipopekuwuz.pdfIn PDF document text
    • http://xuwuvewisin.mypressonline.com/telalituvewavosumusetape.pdfIn PDF document text
    • http://rixorevu.getenjoyment.net/s2_netbox_default_login.pdfIn PDF document text
    • http://kraftmann.su/ukulele_chords_free_downloadt975d.pdfIn PDF document text
    • http://xisumagogali.getenjoyment.net/pt_cruiser_transmission_fluid_fill.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xologikaju.atwebpages.com/gumugidojijopenevuvup.pdfIn PDF document text
    • http://nozozuwovore.atwebpages.com/online_quran_teaching_jobs_in_pakistan.pdfIn PDF document text
    • https://s3.amazonaws.com/lekizopiloref/twitter_profile_photo.pdfIn PDF document text
    • http://javuxanasojajex.epizy.com/frankford_arsenal_rotary_tumbler_straining_caps_with_innovative_heavy-duty_for.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_off0000e4d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4D5 5068 bytes
SHA-256: 959863b9bec0e4440f57265c1fc20b487addb8a9e998d38b6474ad82a6405d64
font_01_sfnt_off0000f63f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF63F 9924 bytes
SHA-256: 52ac083cffbd8a13ffdf33c9c306945ea78400a551ff1b30a4ec41b3933a9cd9