Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ef5cc15c926c983…

MALICIOUS

PDF

88.1 KB Created: 2021-02-24 10:06:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: aae5f6a0efd9d15533c31acc31573236 SHA-1: fdf82cc66bd53d882c8faac35b2c2c8bb8da297f SHA-256: 7ef5cc15c926c983b57498553ae55b689f35a208b979ba26f66f8531970e47ba
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a high-confidence ML classifier and ClamAV, indicating malicious intent. The embedded URL points to a suspicious domain, likely used to host phishing content or a second-stage payload. Although no scripts were explicitly extracted, the PDF structure and the presence of embedded URLs suggest an attempt to trick the user into navigating to a malicious site, aligning with phishing or malware delivery tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://maypoin.ru/strik?utm_term=how+to+get+a+driver%2527s+license+in+colorado PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366389/normal_5fdc2a18ade5b.pdfIn PDF document text
    • https://vamepaxokuwi.weebly.com/uploads/1/3/5/9/135959455/3417623.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367952/normal_5fec0d93bfed4.pdfIn PDF document text
    • http://optamorem.com/6799263148hljlu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500677/normal_5fdf173d725bd.pdfIn PDF document text
    • http://vknacruckalaikov123.xyz/xabajovifudixafegipavonob0lx.pdfIn PDF document text
    • http://salonhq.xyz/50978516139iz84s.pdfIn PDF document text
    • http://lorenbayi.com/12607282390dqfbt.pdfIn PDF document text
    • https://mopopapepiror.weebly.com/uploads/1/3/2/7/132741339/3e71d.pdfIn PDF document text
    • https://vexibalob.weebly.com/uploads/1/3/4/8/134896466/43844b90.pdfIn PDF document text
    • https://degufulu.weebly.com/uploads/1/3/1/3/131379990/7275497.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469626/normal_5ff82976a2006.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427519/normal_5feb7f04bc27d.pdfIn PDF document text
    • https://ronenajawewaxiw.weebly.com/uploads/1/3/4/5/134594127/5491302.pdfIn PDF document text
    • http://reggis.info/bot_binary_20194azbc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379851/normal_5ff7a7c386f9e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xunaruxu.rf.gd/98387697904.pdfIn PDF document text
    • http://xevupan.rf.gd/dokemomurusatiri.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011372.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11372 5256 bytes
SHA-256: 0493a31e7ec91a0bc49d9fef303c22315c2f9bc3e52e7617735ccf2778e29951
font_01_sfnt_off00012582.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12582 14088 bytes
SHA-256: c0446fca05f3c3c0b8e262adeb85a8d614ec44fd3dc39ffcd44cdcb2b51533f9

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