Malicious PDF — malware analysis report

Static analysis result for SHA-256 607b564b8516534e…

MALICIOUS

PDF

64.3 KB Created: 2021-01-03 09:12:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 44d7ee06dfc57ab0f58c92e916b2e9c5 SHA-1: 13efbacc98f221c03e043606881ba96d5ad67eef SHA-256: 607b564b8516534e6cfd22c5a0099e952649b9e25dc95213c39d412cc3b45708
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure, specifically 'https://gettraff.ru/123?utm_term=launching+the+imagination+2d+pdf'. This, combined with ML classification and ClamAV detection, strongly suggests a phishing or malware distribution attempt. The embedded URLs likely serve as lures to download further malicious content or phish for credentials.

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://gettraff.ru/123?utm_term=launching+the+imagination+2d+pdf In PDF document text
    • https://cdn.sqhk.co/kurinunuwor/biglien/space_simulator_111_apk_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4503791/normal_5ff069b4ef164.pdfIn PDF document text
    • https://cdn.sqhk.co/nulegudup/Ajg8giz/descargar_wizoo_latigo_gratis_downloads.pdfIn PDF document text
    • https://cdn.sqhk.co/libibajuzumu/R7jjMD0/hyperspin_arcade_1up.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465949/normal_5fa51262eda51.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371524/normal_5f9bf3aa0a4dc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470532/normal_5fafaf0e7ffba.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468294/normal_5fda3812bca57.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386830/normal_5fc4f60542a25.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470038/normal_5fe4479ca819e.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/nijudow/new_action_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/vekodupiwarobi/zelifa.pdfIn PDF document text
    • https://s3.amazonaws.com/sezebepit/cad_viewer_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/wifukedot/ziwaxedete.pdfIn PDF document text
    • https://s3.amazonaws.com/sitozi/dametubafa.pdfIn PDF document text
    • https://s3.amazonaws.com/dinigugaxej/beravukoxoxogoma.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_off0000bb8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB8B 5336 bytes
SHA-256: 041ada79f54b1cb49010c790009144f834d2a88b8d27067eb8efb69523b1f079
font_01_sfnt_off0000cd97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD97 10924 bytes
SHA-256: f5c609ae4ef1c381adbc5bfc468f513c779a0342df37479a122fd1112f3f78da

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