Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d72478f0090826b…

MALICIOUS

PDF

70.1 KB Created: 2020-12-15 08:45:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f1dfcc1176ba1ab51e86ff895c2f4910 SHA-1: 15a59c65c6fe7ab9d6fe0b21daaab3da3545e811 SHA-256: 7d72478f0090826b808a8a9a8553df6465de6e058e628f95b582f6aef921f6ef
96 Risk Score

Malware Insights

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

This PDF file was flagged by a machine learning classifier and ClamAV as malicious, with ClamAV identifying it as Pdf.Phishing.Trojan. The presence of an external URI pointing to a suspicious domain, combined with the document's deceptive title, suggests a phishing attempt. Although no scripts were explicitly extracted, the PDF structure and the nature of the detected threat indicate it likely exploits PDF vulnerabilities or uses embedded JavaScript to download a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://trafficel.ru/123?utm_term=autocad+exam+questions+and+answers+pdf
    • https://duxosemizosew.weebly.com/uploads/1/3/4/7/134763313/gekem.pdf
    • https://cdn-cms.f-static.net/uploads/4380213/normal_5f8da304b820a.pdf
    • https://cdn-cms.f-static.net/uploads/4476596/normal_5fbe282ebdb5a.pdf
    • https://cdn-cms.f-static.net/uploads/4411919/normal_5fb579bbb9796.pdf
    • https://cdn-cms.f-static.net/uploads/4500429/normal_5fd808717b694.pdf
    • https://static.s123-cdn-static.com/uploads/4461229/normal_5fcbe22232471.pdf
    • https://cdn-cms.f-static.net/uploads/4415946/normal_5fad40dcdc360.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/nonabafat/facebook_black_background_android.pdf
    • https://static1.squarespace.com/static/5fce2c05c1e311104da65a8a/t/5fd7235489566e781f6818de/1607934805460/jobs_puzzle_worksheet.pdf
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcfd38b7a66e04eaf50367/1606221121447/split_full_movie_online_free.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d40c.bin
1bfc88fe2d50ec3247e154170970d58604ff7610417ee3c10e74bf8ade6c0488		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD40C 5544 bytes
font_01_sfnt_off0000e6ea.bin
bf45e164a4f6c87fd422db02d05ae4d87a035a759ade5356e3c464dbc7e1425b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE6EA 10696 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.