Malicious PDF — malware analysis report

Static analysis result for SHA-256 62bca5d67f53a233…

MALICIOUS

PDF

75.1 KB Created: 2021-02-27 03:33:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 46b67a2312752ba6240622ffef3242db SHA-1: 04b3d3377272a11e6ba3d53939aa2fd520f14987 SHA-256: 62bca5d67f53a233a2433bf7bebe63998afb1383b5ebc7b299a0af66aa09e69e
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://jottigo.ru/award?keyword=dbt+workbook+for+anxiety PDF link annotation
    • https://cdn.sqhk.co/runudori/hflciaD/mazifodatitemodite.pdfIn PDF document text
    • http://gunodopo.22web.org/atmospheric_circulation.pdfIn PDF document text
    • http://burivuvuju.medianewsonline.com/10686191043.pdfIn PDF document text
    • https://cdn.sqhk.co/pugepavofu/jggdShg/abcmouse_free_login_password.pdfIn PDF document text
    • http://xawegap.mywebcommunity.org/nukoturulesapuxawitivug.pdfIn PDF document text
    • http://icub.tech/72815323244d1mn2.pdfIn PDF document text
    • http://lapitubemexidi.mywebcommunity.org/breathing_techniques_for_gymnastics.pdfIn PDF document text
    • http://servisvds.ru/vilojoberenumawixuxarerxex4y.pdfIn PDF document text
    • http://fomijegi.mypressonline.com/harvard_covid_map_florida.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kowefejarozop.epizy.com/the_earth_crash_course_astronomy_11_answers.pdfIn PDF document text
    • http://lulanikigog.epizy.com/14574763408.pdfIn PDF document text
    • http://wojudor.epizy.com/bozevelamew.pdfIn PDF document text
    • https://s3.amazonaws.com/nefomojuwet/garmin_gps_72h_price_in_singapore.pdfIn PDF document text
    • http://xinifaduzinuvu.onlinewebshop.net/how_to_easily_find_the_gcf.pdfIn PDF document text
    • https://s3.amazonaws.com/jofunozuzof/wedugujolotezigag.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_off0000ec43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC43 5016 bytes
SHA-256: 645011bee03208a9e353fbdf1644381a7249dce007b2a666cd0abf3fca9a8bdd
font_01_sfnt_off0000fd8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD8B 10060 bytes
SHA-256: 3071954aa72d7f5e24443eb004b42ced334e4b80ede21569731517ad96740511