Malicious PDF — malware analysis report

Static analysis result for SHA-256 c270dbd9ca4af68a…

MALICIOUS

PDF

101.9 KB Created: 2021-03-30 17:31:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 9a18b051b6214ab15ad0ed62ccdcfb66 SHA-1: 5bdfceb5a9870661dfb49b5b67cae64443085c83 SHA-256: c270dbd9ca4af68a4eb5f871e8b6db956050d16f196f983686eb30b082c3fdcb
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://ponafet.ru/wix?keyword=fallout+board+game+manual PDF link annotation
    • http://retamos.mygamesonline.org/how_to_open_dell_e207wfp_monitor.pdfIn PDF document text
    • https://cdn.sqhk.co/ravuviwidi/rgiy70t/sibib.pdfIn PDF document text
    • https://cdn.sqhk.co/ribobujir/giH7jjt/wikimedia_commons_images.pdfIn PDF document text
    • https://cdn.sqhk.co/gobavata/houM0jg/56728919414.pdfIn PDF document text
    • http://gimemuwet.mypressonline.com/80597012266.pdfIn PDF document text
    • https://cdn.sqhk.co/tumowara/hislihO/among_us_live_wallpapers_phone.pdfIn PDF document text
    • https://cdn.sqhk.co/kuniremolu/ifhhxjc/super_hero_photosuit_maker_2._5.pdfIn PDF document text
    • http://kumululurug.scienceontheweb.net/98087517847.pdfIn PDF document text
    • https://cdn.sqhk.co/togixulala/hegcCDm/mevusofekobun.pdfIn PDF document text
    • https://cdn.sqhk.co/fuvopone/Uhhgejc/food_giant_weekly_ad_sikeston_mo.pdfIn PDF document text
    • https://cdn.sqhk.co/tevosenijosu/ia8jegg/44712326257.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/gopuze/reroranipirosukotitero.pdfIn PDF document text
    • https://s3.amazonaws.com/lerezazo/free_icons_for_windows.pdfIn PDF document text
    • http://vomovawesojuti.epizy.com/begotiloregevefibufitu.pdfIn PDF document text
    • http://pogapebod.rf.gd/lowepu.pdfIn PDF document text
    • https://s3.amazonaws.com/wemazun/nelson_stud_welding_machine_rental.pdfIn PDF document text
    • https://s3.amazonaws.com/winumigutam/olx_pakistan_app.pdfIn PDF document text
    • http://nuxidewoti.epizy.com/faregafisonopave.pdfIn PDF document text
    • http://bazevogef.epizy.com/was_friedrich_nietzsche_atheist.pdfIn PDF document text
    • https://s3.amazonaws.com/pevuwarobuvowa/sabertooth_z77_motherboard_drivers.pdfIn PDF document text
    • http://parijuxurumemew.epizy.com/fukejomik.pdfIn PDF document text
    • https://s3.amazonaws.com/nowokil/axis_asap_app.pdfIn PDF document text
    • https://s3.amazonaws.com/wetowuzuxit/aperture_dslr_guide.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_off000151b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x151B0 5060 bytes
SHA-256: bed3d1e8074220bca9560186f375026a0428b129516962b179ea84ef39a0ea4b
font_01_sfnt_off000162d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x162D1 11664 bytes
SHA-256: fd3a5a9244b26d0039e1414bbda450df6315baa35e21cda2b7c699dca1f5cf1b

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