Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ce56cc0f19b1c94…

MALICIOUS

PDF

190.3 KB Created: 2021-02-07 04:02:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 6c050c644525ac940bca57a7a92d4eed SHA-1: e20e283e25553a68ff9f65a0bc9d91629b62101d SHA-256: 0ce56cc0f19b1c949425200baad2af5ceadb7f2e1796f01ed79d1ac4e55acb5b
104 Risk Score

Malware Insights

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

The ML classifier and ClamAV detection strongly indicate malicious intent. The presence of an external URI pointing to a suspicious domain, combined with heuristics indicating urgency lures, suggests this PDF is designed to trick users into visiting a potentially malicious website. No scripts were extracted, but the PDF structure itself is likely used to host or deliver the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

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://leonvi.ru/wb?keyword=aspiration%20pna%20guidelines PDF link annotation
    • https://cdn.sqhk.co/vadezewe/ihdhrhh/gekote.pdfIn PDF document text
    • https://cdn.sqhk.co/jitegoji/ajhhaTy/jojo_ending_meme_song.pdfIn PDF document text
    • http://nizuloxodiza.iblogger.org/ffxiv_praetorium_tank_guide.pdfIn PDF document text
    • https://cdn.sqhk.co/mukibusu/2QgjUif/55850161562.pdfIn PDF document text
    • http://bijopesenof.iblogger.org/8185547411.pdfIn PDF document text
    • https://cdn.sqhk.co/parabeset/oicngyl/givafotebalimuvej.pdfIn PDF document text
    • https://cdn.sqhk.co/mofosalamo/UJAcpp1/flipgrid_app_icon.pdfIn PDF document text
    • https://roxasudafuj.weebly.com/uploads/1/3/0/7/130740166/kelezafaxagep.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/zaxuledo/iem_burn_in_guide.pdfIn PDF document text
    • http://bekabugi.epizy.com/51694735792.pdfIn PDF document text
    • http://debagejusuwaj.epizy.com/57649303847.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000298c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x298C0 5116 bytes
SHA-256: 9a4e59cb9de9276e6007eb217b3766799d458e1b4328a0ea11892ee5e8d3a731
font_01_sfnt_off0002aa35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2AA35 13696 bytes
SHA-256: 2bae127b6e7f377841106036fb1df3b4132b287ca7ee411f4a14bcea2505ad34
font_02_sfnt_off0002d5d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D5D5 16152 bytes
SHA-256: 584780b83d2b471c60ad56403b6c1b1ffad8e928be7c9b74e809276eb4de34d4