Malicious PDF — malware analysis report

Static analysis result for SHA-256 14d7f8993100762d…

MALICIOUS

PDF

61.3 KB Created: 2021-02-19 05:01:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 2669143a444b7b29bdaee8d9e40c96fa SHA-1: 18a4b8d4445948a970c20ea58c6847a5ed96951d SHA-256: 14d7f8993100762d138b95ecfd9f7d632348c7998c16562b9d8ec0e4db722d38
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://leonvi.ru/123?utm_term=thrill+of+the+chase+book+clues PDF link annotation
    • https://cdn.sqhk.co/gorokipo/f5hjjbF/football_rankings_2021.pdfIn PDF document text
    • http://frukt.fun/90579549391obie7.pdfIn PDF document text
    • https://cdn.sqhk.co/movozuba/Rjeifhf/knives_crash_mod_apk_unlock_all.pdfIn PDF document text
    • http://mscgis.net/pivurlz7cn.pdfIn PDF document text
    • http://artistichomesolutions.com/solo_wargaming_guide09uji.pdfIn PDF document text
    • http://lazadacostumercenter.com/solving_systems_by_substitution_andt6xa4.pdfIn PDF document text
    • https://cdn.sqhk.co/votezevon/jP7EifI/best_armor_enchantments_for_minecraft.pdfIn PDF document text
    • http://korecos.ru/paraterididepuniwika4wgk.pdfIn PDF document text
    • http://lumacy.site/43930679803i5ze9.pdfIn PDF document text
    • https://cdn.sqhk.co/korokotuduki/ficTVjj/protection_the_presidential_bodyguard_secret_service.pdfIn PDF document text
    • http://fullpisetc.ru/diagrama_de_flujo_simbologia_y_significadoflmmi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/vinivuxo/raxiguputizonos.pdfIn PDF document text
    • https://s3.amazonaws.com/zulezov/meet_up_formal_synonym.pdfIn PDF document text
    • http://tufukupetateto.epizy.com/49332283635.pdfIn PDF document text
    • http://xijovapafibowuw.rf.gd/lororimakaxa.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_off0000b981.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB981 5120 bytes
SHA-256: a3cae1599566010f0c531ec75bcadf11ccac2a712420be20c442799db5a615d6
font_01_sfnt_off0000cae7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAE7 8600 bytes
SHA-256: 650e17a60e1ad860097bbe5daee08d83c68765dd3362476d45c0dd42cb079453