Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e24415a6c07f9b7…

MALICIOUS

PDF

87.5 KB Created: 2021-04-05 05:46:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 34a2eccc545f917518af585c50269389 SHA-1: 53775a436d854a5bedd58184915bfdc79a58c0b8 SHA-256: 0e24415a6c07f9b7cf54875008771313590f591f2749eff790ff41a027cf2279
136 Risk Score

Malware Insights

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

The PDF document was flagged by a machine learning classifier and ClamAV as malicious. Heuristics indicate it uses an advance-fee scam lure, presenting a fake lottery or prize notification to trick the user. The embedded URL `https://lozipotod.ru/123?utm_term=greater+than+gatsby+free` is likely the next stage of the attack, aiming to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://lozipotod.ru/123?utm_term=greater+than+gatsby+free
    • https://cdn-cms.f-static.net/uploads/4451377/normal_604e153152564.pdf
    • http://gutagige.sportsontheweb.net/cursive_writing_chart.pdf
    • http://memisada.mygamesonline.org/23369136528.pdf
    • https://cdn-cms.f-static.net/uploads/4497658/normal_602a28b1bff0d.pdf
    • https://cdn.sqhk.co/winelolibug/7onhjt2/warefefa.pdf
    • http://surozofawowidom.scienceontheweb.net/lidekamefogedudevaxo.pdf
    • http://palikexifumalam.mywebcommunity.org/33969581080.pdf
    • http://dejivuxa.mygamesonline.org/93146691431.pdf
    • http://dalidusiz.mywebcommunity.org/72817697511.pdf
    • http://gadazagowuvared.iblogger.org/ketogenic_diet_meal_plan_free.pdf
    • https://cdn.sqhk.co/fukafodifi/jeBBifN/buwuzufixanasupivimifino.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://povodakav.myartsonline.com/53728779978.pdf
    • https://s3.amazonaws.com/norozovijalu/texidi.pdf
    • http://pasifowon.atwebpages.com/canon_rebel_xt_battery_pack.pdf
    • https://s3.amazonaws.com/xamapebonijos/kapudaxizexezudijixano.pdf
    • http://sarutufasiko.atwebpages.com/gumadare.pdf
    • http://vejosekafabij.rf.gd/synchronous_motor_calculations.pdf
    • https://s3.amazonaws.com/remeranexe/audio-technica_at-lp120xusb_direct_drive_professional_usb_turntable.pdf
    • http://suwuxuk.epizy.com/social_security_medicare_part_b_employer_form.pdf
    • https://s3.amazonaws.com/waxegatulo/hong_kong_1_piano_sheet.pdf
    • https://s3.amazonaws.com/genedonapubefe/hang_tag_template_photoshop.pdf
    • http://nixikivike.epizy.com/united_states_catholic_catechism_for_adults.pdf
    • 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_off000117a6.bin
16e5fae97c7c35b0ec6a64065ac06e0e7b0042d96c92fb264a834f479f0f445d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x117A6 5272 bytes
font_01_sfnt_off0001299d.bin
162ab369cc24af501d99b31aa133b672fec6144def5acce16e4b6c6c7cf9f0f5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1299D 11740 bytes

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