Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ace65957ab5befe…

MALICIOUS

PDF

68.2 KB Created: 2020-12-03 07:55:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 8a82eeaba2da90d29081007ddf8fbdce SHA-1: 3f9bac026db40758c06fcd9ce0d1ffc27cd3d014 SHA-256: 0ace65957ab5befe616315538e011797c0228336f556538bcb789e9ce62f11a5
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9974

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://traffking.ru/strik?utm_term=best+unblocked+games+avalanche PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4415525/normal_5fbf568ed1fab.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392474/normal_5fc55387d01da.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc57e62a8793968642735c9/t/5fc7b8a01d689b68bfa5fac2/1606924448492/can_you_get_the_chosen_app_on_roku.pdfIn PDF document text
    • https://s3.amazonaws.com/tesapibebujep/miwonizivuwosovubarupe.pdfIn PDF document text
    • https://s3.amazonaws.com/jojitagifuva/wasubapikakaje.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwawibu/4249211513.pdfIn PDF document text
    • https://s3.amazonaws.com/dozuga/news_script_sample.pdfIn PDF document text
    • https://s3.amazonaws.com/xanebavifamopez/noad_solo_guitar_playing.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0805cd49dd12447321748/t/5fc0e3a24f98375720008ca9/1606476706913/jaxudedamutekarox.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_off0000cd18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD18 5568 bytes
SHA-256: f5690430bdf7e34cb62e2397b97ddd8a53691c20284df4aaa1e4c195701fe1a7
font_01_sfnt_off0000dff2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFF2 10704 bytes
SHA-256: d82ecdd4e3bb30b51f1769b8cffbceaf1426c3e35eb8e16c72f6e5b4365a38a9

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