Malicious PDF — malware analysis report

Static analysis result for SHA-256 11e902c5d52369e2…

MALICIOUS

PDF

58.2 KB Created: 2021-05-25 01:00:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 8a2fbf5d89c9d50cc6b44452fdd99dd4 SHA-1: e8c65e788192fc288cd32a1b8443dd84cdafa163 SHA-256: 11e902c5d52369e22e798b67ec97d3aea4526f7a3d85bc1dd150728058b1b376
242 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of links to various websites, many of which are hosted on disposable domains or known malicious redirectors. The embedded content suggests a lure related to popular media downloads, aiming to trick users into visiting these malicious sites. The ClamAV detection and ML classifier further support its malicious nature, indicating it's likely a phishing or trojan distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8425

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation 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.
  • 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://yafferge.ru/strik?utm_term=ladki+beautiful+kar+gayi+chull+mp4+video+song+free+download In PDF document text
    • https://zolidejowifaw.weebly.com/uploads/1/3/5/3/135313364/kimomenop_zewumotoderire_zinebabigub_diluge.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479932/normal_5fe397d431d63.pdfIn PDF document text
    • https://fokereja.weebly.com/uploads/1/3/1/8/131856005/kekupofo-radixurasori-siliwinina-josojasidegivo.pdfIn PDF document text
    • https://defagetomorig.weebly.com/uploads/1/3/4/5/134576552/zokakuxopasote.pdfIn PDF document text
    • https://tedovuja.weebly.com/uploads/1/3/4/4/134465286/rogugoleb.pdfIn PDF document text
    • https://samojosaletope.weebly.com/uploads/1/3/4/0/134017273/365685.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455659/normal_60161397d0da1.pdfIn PDF document text
    • https://vakajufatig.weebly.com/uploads/1/3/5/3/135332685/3a72076615aac.pdfIn PDF document text
    • https://xiduzejeg.weebly.com/uploads/1/3/1/6/131606953/vosikareragupuforeti.pdfIn PDF document text
    • https://fipaziditude.weebly.com/uploads/1/3/4/4/134465794/wumutipes.pdfIn PDF document text
    • https://redorofi.weebly.com/uploads/1/3/5/3/135383823/zepoli.pdfIn PDF document text
    • https://piwaxiru.weebly.com/uploads/1/3/4/8/134882920/popupud.pdfIn PDF document text
    • https://sapesikunudob.weebly.com/uploads/1/3/1/3/131398489/57163c814.pdfIn PDF document text
    • https://kokurakigid.weebly.com/uploads/1/3/4/8/134866761/617561.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4492573/normal_6011a71b56982.pdfIn PDF document text
    • https://s3.amazonaws.com/sosupejuxofedo/lejuxavotazefisefowu.pdfIn PDF document text
    • https://s3.amazonaws.com/pujirageg/sabobaxutevarizovumuleniw.pdfIn PDF document text
    • https://s3.amazonaws.com/nowokil/75965155099.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5e072dc4-78d5-443a-91ae-092193c69e02/casio_protrek_prg_270_specs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1c43d0df-f9b1-4e46-a20d-7035442681f2/waffle_house_job_positions.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/92a24bc3-91cd-4917-a36c-d39bb6e8c77a/stock_symbol_for_petroleum_companies.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d3f061ad-8896-44a5-91d3-87d393cbfa99/zokudokalozopabipotej.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5c1959eb-b537-4eaa-ba91-5fbf9fc64ba0/venn_diagram_practice.pdfIn PDF document text

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