Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2a25670887052f1…

MALICIOUS

PDF

64.2 KB Created: 2021-02-22 19:43:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 5c14a9fcd935e45a22f492a5a75005aa SHA-1: 1e1f628e8862341f927824eb1cb8ceceb4b3f827 SHA-256: c2a25670887052f1895a113eea8087ddab6f3c2c356fe89dee9a303ac4d1a3d7
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://leonvi.ru/aws?utm_term=playmobil+5167+my+take+along+dollhouse PDF link annotation
    • http://50offstore.pro/d-link_dir-601-a1_firmware1iikt.pdfIn PDF document text
    • http://vafakewa.iblogger.org/66024115554.pdfIn PDF document text
    • https://cdn.sqhk.co/datawafag/iggcugd/54968260125.pdfIn PDF document text
    • https://cdn.sqhk.co/jomonufo/cti8Vhc/22472105245.pdfIn PDF document text
    • https://cdn.sqhk.co/topefebi/dhS5icg/71280135829.pdfIn PDF document text
    • https://cdn.sqhk.co/lapefuxolu/VJ3CrQY/gabobevokefonimukewopola.pdfIn PDF document text
    • http://all-system7.xyz/watchman_nee_on_prayercygqa.pdfIn PDF document text
    • http://pusosokus.iblogger.org/86505921786.pdfIn PDF document text
    • https://cdn.sqhk.co/labifikup/igjbkhi/wig_master_seinfeld_quotes.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fivamoxopel.epizy.com/sadlier_vocabulary_workshop_level_b_unit_2.pdfIn PDF document text
    • http://fozosoripivo.epizy.com/io_e_te_niccol_ammaniti.pdfIn PDF document text
    • http://wugulinutefi.rf.gd/62566969752.pdfIn PDF document text
    • http://davojuke.epizy.com/free_cheer_tryout_score_sheet_template.pdfIn PDF document text
    • http://nosaras.rf.gd/aliments_riches_en_fer.pdfIn PDF document text
    • http://gopalemebag.epizy.com/how_to_add_pictures_to_a_digital_photo_frame.pdfIn PDF document text
    • http://wadarudi.epizy.com/bolaza.pdfIn PDF document text
    • http://nijetazum.epizy.com/happy_birthday_to_you_chords.pdfIn PDF document text
    • http://posugez.epizy.com/nelogu.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_off0000bc32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC32 5860 bytes
SHA-256: e98fdb16f8b6db3bcc140bf49f0dbfd2af816da7f101e1113222cadf753658aa
font_01_sfnt_off0000d019.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD019 10516 bytes
SHA-256: 3d0fabf7637076ba35607da17b275f11d70566a411d3689514998c19bd331d29