Malicious PDF — malware analysis report

Static analysis result for SHA-256 2bfc42a904f4ea25…

MALICIOUS

PDF

87.8 KB Created: 2021-01-01 14:36:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 80e6dd10ce8bccaa59a77350183cf419 SHA-1: d4b6aaff0ae1a3d37549b815c39e3e66b2798e0e SHA-256: 2bfc42a904f4ea259ab3636de7f97d15041e3c316cfd0e9ef3338517505dca55
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 0.9967

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/aws?utm_term=white+platform+sandals+uk PDF link annotation
    • https://cdn.sqhk.co/depifozopupe/4ghm5jI/storybeat_premium_apk_no_watermark.pdfIn PDF document text
    • https://cdn.sqhk.co/jevipugirofi/bjhfgd4/56531838512.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4483331/normal_5fdf6f09e3f88.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472503/normal_5fc054f1e5bc7.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/xazarujokemus/6534773892.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2bdfbd31-fec8-4596-8e9b-081231cdbb9e/80783846702.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/33bab305-7d6b-4ab9-9419-7fd6136b8a0d/gift_cash_app_referral_code.pdfIn PDF document text
    • https://s3.amazonaws.com/jidosatikim/guided_tours_london_heathrow.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/04ffce64-5fdd-4524-9153-e09c15ce03dc/15169382503.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_off00011d35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11D35 5360 bytes
SHA-256: f44f748dd3cc86a54336fb3fb5f5ad9c5fc245a6fda6ce92fe304ea1ea85db00
font_01_sfnt_off00012f52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12F52 9972 bytes
SHA-256: 11fec07eda0522a82f384a8647559773d3fe58172c4433805d89f53736c02153

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