Malicious PDF — malware analysis report

Static analysis result for SHA-256 d21117c62dc384b9…

MALICIOUS

PDF

80.7 KB Created: 2021-03-08 02:52:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: b819336a7d9686586559cf987d12829a SHA-1: 2594485a094ddfe897f1e6c1e7db3f3fd6a721d6 SHA-256: d21117c62dc384b936951445efeb00f1cd32d2762f0d57d5d951fc06157cb955
96 Risk Score

Malware Insights

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

The file is a PDF containing an embedded URL that points to a suspicious domain. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware delivery. The document body, though heavily obfuscated, contains text related to 'The great tournament 2 guide' and 'wkhtmltopdf', suggesting a lure to disguise the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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/wix?keyword=the+great+tournament+2+guide PDF link annotation
    • https://cdn.sqhk.co/kugefiruxat/jaIrif0/72563844853.pdfIn PDF document text
    • https://cdn.sqhk.co/nedupugifuka/MNjfhcL/bluffton_sc_restaurants_that_deliver.pdfIn PDF document text
    • http://gejulavofanutar.mygamesonline.org/how_do_i_reset_my_schlage_keypad_lock_without_code.pdfIn PDF document text
    • https://cdn.sqhk.co/tijonodevi/gwG1bF9/30594291270.pdfIn PDF document text
    • http://ninefuva.22web.org/nowemisubokonowegujer.pdfIn PDF document text
    • http://zimezobot.getenjoyment.net/dark_souls_2_ps4_dlc_keys.pdfIn PDF document text
    • https://cdn.sqhk.co/soxemudu/hhij4VN/good_2_player_games_ipad_free.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xukirizugukugi/zodipesawagujizibekolisez.pdfIn PDF document text
    • http://tizovosavudufi.rf.gd/89298097243.pdfIn PDF document text
    • https://s3.amazonaws.com/babetafaperaxov/myers_briggs_infj_careers.pdfIn PDF document text
    • https://s3.amazonaws.com/wuxupewu/blenheim_high_school_sixth_form_open_evening.pdfIn PDF document text
    • http://wegakitiz.epizy.com/asset_er_roblox_rhcloud.pdfIn PDF document text
    • http://zujitix.epizy.com/24798371114.pdfIn PDF document text
    • https://s3.amazonaws.com/jifesu/xurafis.pdfIn PDF document text
    • https://s3.amazonaws.com/roxawo/10069912323.pdfIn PDF document text
    • http://vulikoviluxugu.rf.gd/band_expense_spreadsheet.pdfIn PDF document text
    • http://siniligavaxuvul.onlinewebshop.net/bakabutofozososavuxe.pdfIn PDF document text
    • http://faleferesevo.onlinewebshop.net/50820760917.pdfIn PDF document text
    • http://peronilekovo.rf.gd/takodi.pdfIn PDF document text
    • http://kapigazezej.epizy.com/app_facebook_lite_new_version.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_off0000fe36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE36 5108 bytes
SHA-256: c624020588415da0380691f0ddda5f9b9da28c845fb2a9f864c3f0af7456a585
font_01_sfnt_off00010f6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F6A 11588 bytes
SHA-256: a1d817fcbddfc58bb8d6026bd001b1b1d649812246d8690c40f6ffd3f2fe2778

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