Malicious PDF — malware analysis report

Static analysis result for SHA-256 348ce0a368eddbf2…

MALICIOUS

PDF

59.9 KB Created: 2021-03-05 12:03:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 71f89b217b5705b9045408308720c77c SHA-1: 08e6b1cb556549d77efb9b411cc44fc3938a02f1 SHA-256: 348ce0a368eddbf20b4949b251bac1cb2d20f83d1d5e425c40953b6e11f7badd
184 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous external links, many of which point to disposable domains and are likely part of a link farm designed to manipulate search engine results or redirect users to malicious content. The ClamAV detection and ML classifier also indicate malicious intent, specifically related to phishing. While no scripts were extracted, the PDF structure and embedded links strongly suggest a phishing or malicious redirection attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7432

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 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.
  • 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://zajinet.ru/award?keyword=best+kitchen+stand+mixer+2020 PDF link annotation
    • http://vquest.website/xixobimefepoxivafurafeto691.pdfIn PDF document text
    • http://fb-ig-copyright.com/gallistel_ellis_sample_report6ycss.pdfIn PDF document text
    • http://ebay-coupon.ru/8184144322fmnps.pdfIn PDF document text
    • http://yesnutural.space/169889459541wk0y.pdfIn PDF document text
    • http://kurs1.xyz/danganronpa_2_chapter_3_class_trial_guidenhu2f.pdfIn PDF document text
    • http://manaluw.iblogger.org/43159017742.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/92a4ee03-2370-41fb-8923-0be9e369791f/4576504617.pdfIn PDF document text
    • https://61069a5e-3c5f-4884-a3c7-8c7552058b74.filesusr.com/ugd/0789d5_9602152a031d45b987eb2c314854e43f.pdf?index=trueIn PDF document text
    • https://ea7788ad-ef5a-48b5-911d-3ad522045378.filesusr.com/ugd/f3bfbb_c89eb0215c464a77804313fac2e8c55e.pdf?index=trueIn PDF document text
    • https://23da7c74-6e14-424a-b22a-901aa35eafb1.filesusr.com/ugd/9cc572_b018445c9f694f9fb70ea2f4bc152fc6.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/46c19b62-2002-4fbf-8883-722c01a63cb8/vivuvafisuxixare.pdfIn PDF document text
    • https://c7bff75e-0a19-4817-9d47-fca4cf08161b.filesusr.com/ugd/3b6424_dbdb4deb6a394f0da6fbf705a7a29231.pdf?index=trueIn PDF document text
    • http://fiduritunibo.epizy.com/zaxugavuvajasemijadoruni.pdfIn PDF document text
    • http://gitogopafo.epizy.com/harvard_referencing_guide_neils_toolbox.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d260d36a-6057-4b16-9f61-82184ddc06ec/79618162525.pdfIn PDF document text
    • https://387a498e-9551-4239-9507-3183ba214552.filesusr.com/ugd/cd403b_f51bb5140b8146e6afe6a669c916966e.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/593287b1-56fa-48cd-84a3-fcdd81110447/nukefaxonox.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f25fb3f-72f9-41ae-b79b-e7cc01c15543/what_do_playing_cards_symbolize.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2b7c1f77-0d19-4e6b-ac15-f7a389001904/78452129786.pdfIn PDF document text
    • https://69868269-04aa-4a0d-8379-1371762fd556.filesusr.com/ugd/d8beff_baa3f2b446bd45109eb71074d1e2bc36.pdf?index=trueIn PDF document text
    • https://77a48bbd-706a-45f8-a225-ac1cc02029d7.filesusr.com/ugd/3be48b_1964ab242378438086ac70f1b40919d4.pdf?index=trueIn PDF document text
    • https://52ed6390-a5c1-4502-9f93-599cf6d98ad1.filesusr.com/ugd/f7fbc8_d5fa760772cb4238bbaa186c98e9c60a.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/61c8c875-1966-4f1a-a04f-d449fb625050/building_the_gymnastic_body.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/78261040-977b-45bb-a9fe-31ef1d242c8a/46115471849.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a638fa7-1a6f-47ee-9137-37ef9cf51d16/vebeguzitemuvamakuxuna.pdfIn PDF document text
    • https://be08d7d4-326a-4801-be9d-4496af17a43b.filesusr.com/ugd/d31907_0696108564c5474a9e2cf386a7e4cc8e.pdf?index=trueIn PDF document text

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