Malicious PDF — malware analysis report

Static analysis result for SHA-256 07e6fc55a1b142f5…

MALICIOUS

PDF

77.6 KB Created: 2021-03-09 06:51:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 30e14fc839638624e9fd8b7ed646d912 SHA-1: 6f64de9478e43ad6c761974abe1e1934b2d9013b SHA-256: 07e6fc55a1b142f584b239a3d542d664ecee0f14768557dfded4d316a6d02298
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URL points to a suspicious domain, suggesting a phishing or malware distribution attempt. No scripts were extracted, but the presence of an external URI is a strong indicator of malicious activity.

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://xajibur.ru/strik?utm_term=scalzi+old+man%2527s+war+movie PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4385631/normal_603012aacb88d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418565/normal_602226e003dcd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419640/normal_600a57f5d5c7b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373526/normal_5fe7b47c765a1.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/zidosozawok/hepatitis_c_guidelines_2017.pdfIn PDF document text
    • https://s3.amazonaws.com/sogovekevi/38008844394.pdfIn PDF document text
    • http://rolonitefokive.rf.gd/netflix_windows_10_offline.pdfIn PDF document text
    • https://s3.amazonaws.com/ladiwuzetawedi/2998764633.pdfIn PDF document text
    • http://sogigadataga.epizy.com/mijexuxixekaviwuj.pdfIn PDF document text
    • https://s3.amazonaws.com/pajeriramal/jonaxamekirozezofuzego.pdfIn PDF document text
    • https://s3.amazonaws.com/libowebujakux/tefumikekutezimotakevo.pdfIn PDF document text
    • https://s3.amazonaws.com/wixanarer/audio_recorder_android_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/farefasejikap/velizikotuburogup.pdfIn PDF document text
    • https://s3.amazonaws.com/povodijirig/raxijosakabab.pdfIn PDF document text
    • https://s3.amazonaws.com/vobuturinivi/legubudanixemowageliwi.pdfIn PDF document text
    • https://s3.amazonaws.com/donarepemi/wizajubewosexigezizurit.pdfIn PDF document text
    • https://s3.amazonaws.com/zetubakuz/jimibedebizukejunu.pdfIn PDF document text
    • https://s3.amazonaws.com/dozore/xenowafu.pdfIn PDF document text
    • https://s3.amazonaws.com/rujabepifar/letimiderene.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_off0000f01f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF01F 5424 bytes
SHA-256: 2d77591769d4c82129ee0518c05340e707ebf8eefa67becfda9027ff28b1d410
font_01_sfnt_off0001029e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1029E 11468 bytes
SHA-256: 053a11dc4d8459f3992f2602c4e50ae4500b62dfa713df901429df86426a8d2d

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