Malicious PDF — malware analysis report

Static analysis result for SHA-256 060a1415e7363eeb…

MALICIOUS

PDF

90.9 KB Created: 2021-03-24 20:46:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: 4db09934a1edc7bd5796941ac4042e42 SHA-1: d3375c384f9ef8850d5a856033ed9a63c70d06af SHA-256: 060a1415e7363eebea512f4be95ae3b8f76233c497871ffda5c070b3807c4f31
126 Risk Score

Malware Insights

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

The PDF document contains numerous embedded URLs, many of which point to disposable domains and are flagged as part of a link farm. The ClamAV detection and ML classifier strongly indicate malicious intent, likely phishing or malware delivery. The document body, though heavily obfuscated, appears to be a lure related to a school supply list, aiming to trick users into clicking malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://maypoin.ru/wix?keyword=edythe+j+hayes+school+supply+list PDF link annotation
    • http://derilezin.sportsontheweb.net/tlcharger_gratuitement_cours_automatisme.pdfIn PDF document text
    • http://sis-paypal.com/entergy_mississippi_outage_reportingzt5a8.pdfIn PDF document text
    • http://slimerecipe.org/83383951999vgf1u.pdfIn PDF document text
    • https://revegeworosopo.weebly.com/uploads/1/3/1/6/131637057/soxobexozilabel.pdfIn PDF document text
    • https://cdn.sqhk.co/xenudipu/emgdhgg/didomefobikebarob.pdfIn PDF document text
    • http://conicppjry.bid/79141769466sbx29.pdfIn PDF document text
    • http://norasuzajo.mywebcommunity.org/jimaxelifajivenalozonozab.pdfIn PDF document text
    • https://cdn.sqhk.co/kalazirifev/McbhcFt/apologia_biology_student_notebook_answers.pdfIn PDF document text
    • http://grinallex.shop/vomixapogiwepekixrm7ue.pdfIn PDF document text
    • http://fizebiredasibi.mypressonline.com/what_is_leap_sleep_regression.pdfIn PDF document text
    • https://cdn.sqhk.co/dabozijide/4gcibhg/remusitegekarurobube.pdfIn PDF document text
    • https://bisebisa.weebly.com/uploads/1/3/1/4/131406118/mobarul.pdfIn PDF document text
    • http://dipenoguzel.sportsontheweb.net/how_to_change_name_on_ipod_nano_7th_generation.pdfIn PDF document text
    • http://jijoxep.getenjoyment.net/figewiz.pdfIn PDF document text
    • http://goldstein.capital/98957827053407nh.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://37991ae0-d72b-4ccf-bf90-288dedd591e7.filesusr.com/ugd/041b56_7c78aa9c244841daa5fed58fc9ddad09.pdf?index=trueIn PDF document text
    • http://weparaxopulo.atwebpages.com/jiradasazizox.pdfIn PDF document text
    • http://pasulupumorowim.myartsonline.com/xexanedufanapulo.pdfIn PDF document text
    • https://cd489911-dc6d-4439-b408-84622343fb93.filesusr.com/ugd/d8e941_cfa530f36a464671889ea6e896d65f18.pdf?index=trueIn 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011743.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11743 4976 bytes
SHA-256: a7c480cc73b64b4ab1a711dca8d45e20ca9f0916d296e299b9564bf0e57317cb
font_01_sfnt_off0001284e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1284E 11376 bytes
SHA-256: 6b60b953be4fe2dc48ef1b95ae74d83193d493c429860264eb4c0d98eb0bd20a
font_02_sfnt_off00014ea5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14EA5 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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