Malicious PDF — malware analysis report

Static analysis result for SHA-256 018e1dee83b3e731…

MALICIOUS

PDF

79.1 KB Created: 2021-03-26 08:10:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6fcc0553951e97c8e20785427bcbbcd1 SHA-1: d9c5568a7f01f099c1f4eeaa51a4232e4cc82f19 SHA-256: 018e1dee83b3e7314b0bb1816dac63f6d3e188c3c1662a39c2dec1c3760ccfca
104 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of embedded URIs, including one pointing to 'soxebez.ru', suggests the document is designed to redirect users to malicious sites. The heuristic 'SE_DOWNLOAD_BUTTON' further supports the lure-based attack pattern, implying the document tries to trick users into downloading a payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://soxebez.ru/award?keyword=std+11+ncert+biology+textbook+pdf+gujarati
    • http://javatow.22web.org/fizeroko.pdf
    • http://xosuvirakogaf.iblogger.org/b_q_vinyl_flooring_sheet.pdf
    • http://dojemop.mywebcommunity.org/python_object_oriented_programming_questions.pdf
    • http://mewudaguzexo.sportsontheweb.net/turofimobefelokunobafugir.pdf
    • http://lunagogafoxoj.sportsontheweb.net/bejusoxuvosi.pdf
    • http://gelupulofevabek.medianewsonline.com/how_do_colors_relate_to_emotions.pdf
    • http://zaxevef.getenjoyment.net/zamoguxuxipiziwizo.pdf
    • http://fukuzowi.sportsontheweb.net/bexupalusirejig.pdf
    • http://larekew.mywebcommunity.org/77626650388.pdf
    • http://gaximivotekole.mypressonline.com/ao_smith_water_softener_reset_button.pdf
    • http://lajokuxix.22web.org/fagor_lux_multi_cooker_accessories.pdf
    • http://paxezot.getenjoyment.net/macbeth_act_2_comprehension_questions_and_answers.pdf
    • http://tipofeliluget.medianewsonline.com/92788906165.pdf
    • http://sabumow.mygamesonline.org/que_siente_un_bebe_cuando_se_tiene_relaciones.pdf
    • http://jedusajinud.mygamesonline.org/new_at_taco_bell_august_2020.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://wivukirotodit.epizy.com/fenifibok.pdf
    • http://figapow.epizy.com/infrastructure_report_card_california.pdf
    • http://kelawezup.rf.gd/annual_general_meeting.pdf
    • http://fofifalog.rf.gd/49466208078.pdf
    • http://josesomesube.myartsonline.com/30529539137.pdf
    • http://jibimom.myartsonline.com/psychology_101_test_questions_and_answers.pdf
    • http://kawuduzan.rf.gd/93685449408.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eaf4.bin
5834f9c82093c5b5bf9e4cf3207365fdf2645204a8842c1669a0c911903eb12e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEAF4 3396 bytes
font_01_sfnt_off0000f71c.bin
c234210f52bce18af50a86e99103ce9dbe5d60aa7b78d40b630ece798b2521e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF71C 5752 bytes
font_02_sfnt_off00010ad9.bin
ac93fd896298f41049502ddfd759ba5dba04a991d00196e63d3fe623430fe77e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10AD9 10476 bytes

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