Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9edf41bbe918041…

MALICIOUS

PDF

131.8 KB Created: 2021-03-09 09:25:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c9afe69e8a5cbc1667312744ca01876a SHA-1: 5a1ed7a5703ce897eedb9537b57c78b2d06e35fa SHA-256: e9edf41bbe918041bf744b8bfa7f613f2c74d8c23f7a1a9d5404818ba7db09a9
104 Risk Score

Malware Insights

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

The file is a PDF containing an embedded URI that points to a suspicious domain, identified by ClamAV as Pdf.Phishing.Trojan. The heuristic for urgency lures suggests the document's content is designed to prompt immediate user interaction. Although no scripts were explicitly extracted, the presence of external URIs and the ML classification indicate a high likelihood of this PDF serving as a malicious lure, potentially for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9952

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
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://xezojetit.ru/123?utm_term=top+white+noise+app+for+android
    • http://luranowebereni.22web.org/nuzaxi.pdf
    • http://arthromedro.xyz/z87_prescription_safety_glasses_with_side_shields3vvw2.pdf
    • https://cdn-cms.f-static.net/uploads/4385204/normal_6020033a6fb67.pdf
    • http://uber-global.com/38336886985k414o.pdf
    • http://vugekowuzujed.scienceontheweb.net/voltaire_candide_ou_loptimisme_renaud_bray.pdf
    • http://testrun.ru/weligevojokod75ls.pdf
    • http://begdas.space/a_raisin_in_the_sun_sparknotes_act_1_scene_2hf9j5.pdf
    • http://blekrossi.ru/vuwaladebajulukuvaxivin3uf2.pdf
    • https://cdn-cms.f-static.net/uploads/4408862/normal_600f9365a4b85.pdf
    • http://taygerr.com/bebogunetq75bg.pdf
    • http://funofuzifige.iblogger.org/vakafetizekiwoxubal.pdf
    • http://trylait.club/is_eso_pvp_good_2020u0usq.pdf
    • http://nowtorrentz.com/innova_3040c_manualtnb1x.pdf
    • http://ing-jobs-opportunities.com/merusamelisilupubmb442.pdf
    • http://piredvizhnik.com/data_structures_and_algorithms_in_c_2nd_editiong55e8.pdf
    • http://sarupunojupud.sportsontheweb.net/fitefujegubesixijodafuse.pdf
    • https://cdn-cms.f-static.net/uploads/4404122/normal_600b8c7fd00c2.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://telomilabevi.epizy.com/ridudadu.pdf
    • https://66f9c2bc-82a6-463d-9ccd-9c94d3d8805e.filesusr.com/ugd/b361c6_3add916e446349c3b2eb95c53f5fdf10.pdf?index=true
    • https://e192e36c-395d-4660-9df6-aa7aed00c30a.filesusr.com/ugd/3aee12_8aeac00f6a064e83ae6fe70df3f42315.pdf?index=true
    • http://relurifiluxel.epizy.com/41042813658.pdf
    • http://dupivet.epizy.com/sesolabavugepuduneg.pdf
    • https://ba428ff1-d53d-4eb5-bdb2-cc960067f420.filesusr.com/ugd/7041e4_16f55401b45e41099cb23c5946147ab9.pdf?index=true
    • http://zirutabu.myartsonline.com/best_million_candlepower_spotlight.pdf
    • https://f8ba888e-8f71-4fde-8303-550399648f4e.filesusr.com/ugd/17ce20_8945bfaaae7b4fb88ab12f859c105b84.pdf?index=true
    • https://f904ef53-caa1-4f0f-8a97-c50675c03ece.filesusr.com/ugd/2f8cea_db5173d705db446cafaf4cf3978b7d69.pdf?index=true
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001c92e.bin
ae7ade5afc4fed2b129772260633d54d2c40cbcef4c481235455a99ff64d2733		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1C92E 5140 bytes
font_01_sfnt_off0001dab7.bin
2ea3da82b0246e2b864281537afc8fe306d14572ff89842ecdbaf42e933c3638		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1DAB7 11280 bytes

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