Malicious PDF — malware analysis report

Static analysis result for SHA-256 316e6bddc6ffc901…

MALICIOUS

PDF

74.2 KB Created: 2021-03-08 01:49:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 8e7e633e70458b71c3c6f12f05d78aed SHA-1: f1f91609151301daf6e08c6909ea32f616798911 SHA-256: 316e6bddc6ffc901b1fd4fa965f754a4fc9afc5a093557ad208be0c6b4b0cfca
124 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains numerous embedded URLs, many pointing to disposable hosting and exhibiting link farm characteristics, strongly suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection further support its malicious nature. While no scripts were explicitly extracted, the PDF structure and embedded URIs indicate an attempt to redirect users to malicious sites, likely for credential harvesting or second-stage payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8479

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://mezovuduw.ru/strik?utm_term=remington+electric+chainsaw+16+inch PDF link annotation
    • https://widosutolitidaf.weebly.com/uploads/1/3/4/8/134847614/fbd7b2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459337/normal_60105a5ccbb46.pdfIn PDF document text
    • https://lezisonesu.weebly.com/uploads/1/3/5/3/135339892/dofubomul.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387718/normal_5fc8c098899e2.pdfIn PDF document text
    • http://jijomaj.getenjoyment.net/sixuvenakareraf.pdfIn PDF document text
    • http://faruvob.iblogger.org/esl_relative_clauses_exercises_worksheets.pdfIn PDF document text
    • http://sesesuruko.mypressonline.com/administracion_de_medicamentos_via_subcutanea_definicion.pdfIn PDF document text
    • http://jabilevij.mypressonline.com/jinus.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422894/normal_60036b5f4da51.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411001/normal_603b09254bc24.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424935/normal_5ffe437174140.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/wavunot/cooktop_4_bocas_brastemp_ative_bdt62_manual.pdfIn PDF document text
    • http://pamixawikisif.epizy.com/tikigar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0d8b557d-a1b9-4c85-9171-84c5434c3d5f/98174933376.pdfIn PDF document text
    • http://kivozusemu.atwebpages.com/wagner_915_power_steamer_parts.pdfIn PDF document text
    • https://s3.amazonaws.com/voropa/pastilla_reveladora_de_placa_dentobacteriana.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/07df4443-8cc4-469a-89e9-8a2b3a250d80/wi_state_constitution.pdfIn PDF document text
    • http://dagalukuxi.rf.gd/46846747214.pdfIn PDF document text
    • https://s3.amazonaws.com/tiluwisulepam/1000uf_capacitor_datasheet.pdfIn PDF document text
    • http://roparewuna.rf.gd/endless_legend_guide_jojo.pdfIn PDF document text
    • https://s3.amazonaws.com/fomudebipefasu/juvotelexusasonaxajotawa.pdfIn PDF document text
    • http://biledimetiwen.epizy.com/ohio_guidestone_lorain_county.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_off00010738.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10738 5516 bytes
SHA-256: 9ace9a61d9a60349c335071981bb8ad64f757b17eacb6e2b030ee03c54f3e5b5

Open this report in the interactive analyzer, or submit your own file for analysis.