Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb0bab10959da626…

MALICIOUS

PDF

69.3 KB Created: 2021-03-11 09:42:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 0d6f7ce702e73cf8bb3f89fb7f0f9567 SHA-1: b342e1fc8d689e4063a41dc7cc0388ea28f5e9f2 SHA-256: fb0bab10959da626f4f7f735d582144f147f791cebbc0b95936eb11a6981028a
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains heuristics indicating it's a phishing lure, specifically using a game-related keyword to entice users. The primary URL identified, 'https://gimoguvi.ru/wix?keyword=dogfight+1+the+great+war+unblocked', is flagged as an SEO redirector, likely leading to a malicious or phishing site. ClamAV also detected this file as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://gimoguvi.ru/wix?keyword=dogfight+1+the+great+war+unblocked PDF link annotation
    • https://litodamun.weebly.com/uploads/1/3/4/7/134710511/9028205.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476758/normal_5ffcca51edc5a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414169/normal_5fe518f2abaa5.pdfIn PDF document text
    • https://kutemipemowu.weebly.com/uploads/1/3/4/8/134860595/390791.pdfIn PDF document text
    • http://mazikopipovix.mywebcommunity.org/principles_ray_dalio_book_amazon.pdfIn PDF document text
    • http://geparup.scienceontheweb.net/90842822067.pdfIn PDF document text
    • https://tiwedipetubed.weebly.com/uploads/1/3/2/8/132816066/4696712.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390069/normal_5fe548b1133c9.pdfIn PDF document text
    • http://xitabijasava.getenjoyment.net/28516947842.pdfIn PDF document text
    • https://tadonajates.weebly.com/uploads/1/3/4/3/134319020/xakumam_lajefiro_kebojad.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479235/normal_5fc69f237b224.pdfIn PDF document text
    • http://tosefabebiribow.scienceontheweb.net/65831606493.pdfIn PDF document text
    • https://cdn.sqhk.co/leporolino/YjhsXrB/ice_crusher_for_frozen_drinks.pdfIn PDF document text
    • https://wujupeduluruwuv.weebly.com/uploads/1/3/5/3/135316277/24d94c18764ccd8.pdfIn PDF document text
    • https://cdn.sqhk.co/rizijuwet/zSihuia/jujafe.pdfIn PDF document text
    • http://linavaluviriv.getenjoyment.net/60874444223.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383451/normal_5ffc9dcc891ec.pdfIn PDF document text
    • http://jivusibofonefud.mygamesonline.org/wadapabosesozogavi.pdfIn PDF document text
    • http://rorixuge.iblogger.org/amsterdam_map_attractions.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fogovulosuzan.onlinewebshop.net/curso_apicultor.pdfIn PDF document text
    • http://dezinolabebosod.atwebpages.com/desastre_de_chernobyl.pdfIn PDF document text
    • http://fopalemominito.epizy.com/94636173463.pdfIn PDF document text
    • http://sujonereduvuk.rf.gd/27645494293.pdfIn PDF document text
    • http://kepinud.rf.gd/balancing_chemical_equations_worksheet_with_answers_hard.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_off0000d267.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD267 5452 bytes
SHA-256: da179090279ff6e9fe8770a3e9d2c204a103abb2b662fd9c43ae9a2d0e7b6a29
font_01_sfnt_off0000e510.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE510 10056 bytes
SHA-256: 0778aa852b133cf597b9249c3a1787415073de2d645645bfdb12d1dd11f2a873

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