Malicious PDF — malware analysis report

Static analysis result for SHA-256 0247c4a5354096eb…

MALICIOUS

PDF

66.1 KB Created: 2020-11-14 20:44:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: cdf6ac01209fa383a767cfc27249be90 SHA-1: 39322cb09aaef3411484dd03ba9c1bd0687b145f SHA-256: 0247c4a5354096ebc8ace4fb720363ba7e2159a117960d9b20a48b418971c263
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URL pointing to 'traffset.ru', which is flagged as an external URI. Although no scripts were explicitly extracted, the PDF structure and the presence of an external URL suggest an attempt to redirect the user to a malicious site, likely for phishing or to download a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://traffset.ru/123?utm_term=0+order+kinetics+graph PDF link annotation
    • https://laguvibokabab.weebly.com/uploads/1/3/4/3/134383318/botusefep-wafetasanire-pusuzipafekefid.pdfIn PDF document text
    • https://jiwadurator.weebly.com/uploads/1/3/0/7/130776405/tabivisodinafo.pdfIn PDF document text
    • https://pegebitejujag.weebly.com/uploads/1/3/4/4/134445458/5914197.pdfIn PDF document text
    • https://fupefasupemeze.weebly.com/uploads/1/3/4/3/134315788/9748cb830.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/metubevozisul/gufusepesovex.pdfIn PDF document text
    • https://s3.amazonaws.com/fizup/gesodariz.pdfIn PDF document text
    • https://s3.amazonaws.com/juduk/twitch_tv_com_activate.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4e8543c0-74c7-4fc6-b0d9-e382f1c43f8e/epson_l355_manual_head_cleaning.pdfIn PDF document text
    • https://s3.amazonaws.com/jirebonudur/king_george_and_george_washington_war.pdfIn PDF document text
    • https://s3.amazonaws.com/suximawo/luzowefesunap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c031386e-68da-4e4e-9e90-afcc66f53307/40592917446.pdfIn PDF document text
    • https://s3.amazonaws.com/xanebavifamopez/lusotu.pdfIn PDF document text
    • https://s3.amazonaws.com/tojabixefova/mercury_milan_repair_manual_free_download.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_off0000c549.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC549 5412 bytes
SHA-256: 0822df09c4c304ee98d8a704d0bd17d29bee4ee3cf2f7a5e41e6480d1139c58d
font_01_sfnt_off0000d7a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7A6 10768 bytes
SHA-256: abd416de2245ae514c7b5ffd1641c3fa35479c02147192fc2fd82a415e803c29