Malicious PDF — malware analysis report

Static analysis result for SHA-256 09e32d43d7607c52…

MALICIOUS

PDF

74.8 KB Created: 2021-02-15 20:19:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 081085a253a05bb4414a9d820d15c598 SHA-1: ffedde3f0cb1a7df88c9af5e51bbf5d17dc9fff3 SHA-256: 09e32d43d7607c52b9b7ce9c5354be08898eaac74212ac321c63792d40253575
126 Risk Score

Malware Insights

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

The PDF contains multiple external URIs, with one specifically identified as a link farm on disposable hosting. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or SEO abuse. Although no scripts were directly extracted, the PDF structure and embedded URLs suggest an attempt to redirect users to malicious or deceptive content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://leonvi.ru/strik?utm_term=printable+bible+word+search+puzzles+for+adults PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4498882/normal_5fcba0cc6fbfb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409092/normal_6024bb14b8210.pdfIn PDF document text
    • http://wellwork.site/download_mangao6yd1.pdfIn PDF document text
    • https://cdn.sqhk.co/soribivevi/4jChaR8/intermediate_ballet_class_youtube.pdfIn PDF document text
    • http://formblckr1.xyz/bosch_double_oven_manualb9yap.pdfIn PDF document text
    • https://zusikoxapumobib.weebly.com/uploads/1/3/4/7/134766975/2837651.pdfIn PDF document text
    • https://bexudedumazises.weebly.com/uploads/1/3/1/4/131406785/gejawuwixonaj.pdfIn PDF document text
    • https://cdn.sqhk.co/gejixoneku/jhYjdgj/30420600485.pdfIn PDF document text
    • https://cdn.sqhk.co/dolafita/fdE2Cgj/seesaw_app_icon_image.pdfIn PDF document text
    • https://cdn.sqhk.co/pozuwifofub/8cnic4O/77861223545.pdfIn PDF document text
    • http://instgrmmverifiedbadge.com/54260787903v2lpi.pdfIn PDF document text
    • http://vashmaster.info/pupijotaniluj2ngkt.pdfIn PDF document text
    • https://gakififevorejep.weebly.com/uploads/1/3/1/8/131872199/3049852.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kekunulu.epizy.com/6100954082.pdfIn PDF document text
    • http://zarusorujot.epizy.com/acer_palmatum_bonsai.pdfIn PDF document text
    • http://kudawarov.epizy.com/82532361034.pdfIn PDF document text
    • http://suzawelo.epizy.com/18053731978.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_off0000e80c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE80C 5528 bytes
SHA-256: 74e5089abce37e27e78fc113b64c2ae5ca72aad9628bea91cc4cdbdf2088221c
font_01_sfnt_off0000fae2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAE2 10408 bytes
SHA-256: d24082162351fe3b69c3824c780c2e2af7c151dc700a73d12958fa5c96449523

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