Malicious PDF — malware analysis report

Static analysis result for SHA-256 fdb6307f165d10fe…

MALICIOUS

PDF

70.6 KB Created: 2021-01-31 03:49:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: a856e885da17670de7a4a08c3faf9027 SHA-1: 4217aca57f5587bc90e5b7085aae54b5e89fa7d6 SHA-256: fdb6307f165d10fe225bdc52dbc633835d0633c946a4faa9ba3e8237e5d5db6c
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://druttle.ru/aws?utm_term=brokerage+bill+format+free PDF link annotation
    • http://jemofukamuwol.22web.org/install_platform_toolset_v142.pdfIn PDF document text
    • https://cdn.sqhk.co/mowasikuso/gjXhbEg/9838654942.pdfIn PDF document text
    • http://xodulik.66ghz.com/14112051794.pdfIn PDF document text
    • https://cdn.sqhk.co/bidelefo/hihuU0m/thumbelina_horse_instagram.pdfIn PDF document text
    • http://selizixid.iblogger.org/today_sandesh_newspaper_ahmedabad.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385613/normal_5fe6dbb4276bc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zufarelizija.epizy.com/41659033558.pdfIn PDF document text
    • http://matogojetize.rf.gd/sample_accomplishment_report_in_nutrition_month.pdfIn PDF document text
    • http://reniwen.rf.gd/paracetamol_induced_hepatotoxicity_in_rats.pdfIn PDF document text
    • http://fatewazut.epizy.com/jadulowagobavedasigofap.pdfIn PDF document text
    • http://vuvuvemalazot.epizy.com/nomiw.pdfIn PDF document text
    • http://bakotisimipivok.rf.gd/accountant_cv_format_in_word_free.pdfIn PDF document text
    • https://s3.amazonaws.com/kiguteperilodu/seletega.pdfIn PDF document text
    • http://lodusebivepakef.epizy.com/37163730631.pdfIn PDF document text
    • https://s3.amazonaws.com/juwofuxufijup/figat.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_off0000d80c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD80C 5164 bytes
SHA-256: abf179e4fdac275234086b52007f79f9794a4b8ccf9fa64bc186438d1f28e1d1
font_01_sfnt_off0000e997.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE997 10628 bytes
SHA-256: 23237128e85a2948fc2c46b077052244665de106b6ec288555e20dff3e0a753f