Malicious PDF — malware analysis report

Static analysis result for SHA-256 f84cefafff8e9e06…

MALICIOUS

PDF

84.6 KB Created: 2021-02-15 22:05:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: e3ad189e4dff4f774c76c6ca8fe14510 SHA-1: 2d1f9e4027bb4c99376371a204e05f57b3af7057 SHA-256: f84cefafff8e9e065fcf1f06cf4477548a978f444e5c4736d6899a80e7261a79
166 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF file was flagged by multiple heuristics, including a high-confidence ML classifier and ClamAV detection, indicating malicious intent. The 'SE_PAYMENT_REDIRECT_LURE' heuristic strongly suggests a phishing attempt related to financial transactions. While no scripts were explicitly extracted, the PDF structure and embedded URLs point towards a phishing attack designed to redirect users to malicious sites, likely for credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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://druttle.ru/wix?keyword=ccna+3+chapter+5+exam+answers+2018 PDF link annotation
    • http://nout-prokat.website/xewirqwrrs.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495241/normal_5fdab7015bd5d.pdfIn PDF document text
    • http://demask.space/chauvet-_pro_colordash_accentx1afa.pdfIn PDF document text
    • http://reduslim-italiaofficial.site/fopuzariwumonotutonuns9usz.pdfIn PDF document text
    • http://getcreditcheck.info/durga_saptashati_path_in_marathi_audioqywdw.pdfIn PDF document text
    • https://cdn.sqhk.co/finulepaf/UdIgcja/16332933594.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425005/normal_5fe2aa5e91853.pdfIn PDF document text
    • https://cdn.sqhk.co/disumuneriva/dhWsgdh/prime_alert_suriname_2020.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494648/normal_6024a84fd0f9c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385216/normal_5ffba440adc42.pdfIn PDF document text
    • http://reborasiruv.iblogger.org/black_widow_song_ringtone.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pazatirademe.rf.gd/costco_holiday_shopping_guide.pdfIn PDF document text
    • http://botasalipigu.epizy.com/71768621527.pdfIn PDF document text
    • http://tavupovasar.rf.gd/banyan_tree_3d_model_free.pdfIn PDF document text
    • http://gokamevagared.epizy.com/reporte_cedula_perdida_colombia.pdfIn PDF document text
    • http://fifomivosa.rf.gd/lidebamozovizudukuwol.pdfIn PDF document text
    • http://xupikilagi.rf.gd/beaconsfield_high_school_sixth_form_requirements.pdfIn PDF document text
    • http://pezukovurarugor.rf.gd/80926487867.pdfIn PDF document text
    • http://susebuxusebug.epizy.com/brooks_running_guide_rails.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_off00010d06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D06 6016 bytes
SHA-256: fcbc1cc21d333209ea5ebf0f4d7cc83d539f679969d6f51fa001c2709a10a22b
font_01_sfnt_off00012170.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12170 10408 bytes
SHA-256: af078c9f1e81f1f80d524320dddd32c9d5bed07efd9528c7f0c3d9fd31fef13f

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