Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebcc712642af078c…

MALICIOUS

PDF

65.4 KB Created: 2021-02-26 11:11:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 64e7a4cfc0eebfe756548f146f06dc39 SHA-1: 44ad3edff85892f8345485b3235983e6dda8c14e SHA-256: ebcc712642af078c87ed9c4bf8332134f3ad15c08c78df90ece88a2c2c081e5e
124 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating it is a link farm hosted on disposable domains, with a high ML score and ClamAV detection for Pdf.Phishing.Trojan. The embedded URL and document body text suggest a lure related to product valuation, likely intended to redirect users to malicious content. No scripts were extracted, but the PDF structure and external links point towards a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9765

Heuristics 4

  • 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
  • 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://dugedepap.ru/award?keyword=how+much+is+an+ipod+mini+worth PDF link annotation
    • https://cdn.sqhk.co/bikegola/dXjegdz/18271086724.pdfIn PDF document text
    • https://cdn.sqhk.co/kagumuzom/6jaghjm/69441751816.pdfIn PDF document text
    • https://cdn.sqhk.co/jepogedofuz/eqA3gdF/sky_force_reloaded_planes.pdfIn PDF document text
    • https://cdn.sqhk.co/jiwosowo/mjdBjcw/moto_vlog_brasil_mod_apk.pdfIn PDF document text
    • http://xuzejomuxide.22web.org/scb_annual_report.pdfIn PDF document text
    • https://cdn.sqhk.co/xanapaje/4PryieE/23151683861.pdfIn PDF document text
    • https://cdn.sqhk.co/posojuvapono/Khb2hbn/ps4_remote_play_ds4_android_9.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/fajeloninesitel/volkswagen_service_center_long_island.pdfIn PDF document text
    • http://puxakuxuvon.epizy.com/factory_act_annual_return_form_22.pdfIn PDF document text
    • http://zoxedoronavo.epizy.com/selogozusorumuwu.pdfIn PDF document text
    • http://wekidezeze.epizy.com/dcfs_forms_california.pdfIn PDF document text
    • http://datidalumoz.rf.gd/bsc_modern_physics_notes.pdfIn PDF document text
    • http://dipumekamerara.rf.gd/all_casino_games.pdfIn PDF document text
    • https://s3.amazonaws.com/xugigabitulu/58875986226.pdfIn PDF document text
    • http://nijesawojate.epizy.com/rajaxakitejoge.pdfIn PDF document text
    • http://gezexibubaju.rf.gd/cadimage_for_archicad_18_free.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f88b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF88B 5096 bytes
SHA-256: 7fc6d1e764006267cbe578036def7a46246651824ece49df8da72d1f1ce8adba

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