Malicious PDF — malware analysis report

Static analysis result for SHA-256 eed48d6be59d1d88…

MALICIOUS

PDF

69.2 KB Created: 2020-11-09 18:35:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 847b46dcb6030c5cd9486dfc99482b0a SHA-1: 37895d98b6d375cdc7db91a5c7a2552d02464bc6 SHA-256: eed48d6be59d1d8876e6f172e9520b7dcf9d1860f55771ca70b0af5dd5b07c91
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'traffking.ru'. This indicates an attempt to lure the user to a potentially harmful website. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the presence of a malicious URL is sufficient evidence of a phishing or malware distribution attempt.

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://traffking.ru/123?keyword=ma+open+houses In PDF document text
    • https://cdn-cms.f-static.net/uploads/4457563/normal_5fa1f10ecacc8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365652/normal_5f8907179961c.pdfIn PDF document text
    • https://xonuveviriniw.weebly.com/uploads/1/3/0/7/130738603/zevegojakovonipojaz.pdfIn PDF document text
    • https://zadisoro.weebly.com/uploads/1/3/4/5/134525292/5561846.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412762/normal_5f936c0da49c2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365607/normal_5f9d95f0bd126.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369316/normal_5f8aff8b0cae2.pdfIn PDF document text
    • https://zadumeredevasax.weebly.com/uploads/1/3/1/4/131453870/2913929.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/274923e8-a6fe-4ce6-8899-8528ac443559/41315060598.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f93f18c4-84a2-4e26-8563-6c2d879b9001/pasubafubakesuxefixe.pdfIn PDF document text
    • https://s3.amazonaws.com/ligole/29053644632.pdfIn PDF document text
    • https://s3.amazonaws.com/satudifin/41369490894.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/939ee136-5e80-4026-86f8-3fbf43830b5b/17753648970.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3cfbec1e-ad92-4d68-93c0-4af02eb498f1/50808955881.pdfIn PDF document text
    • https://s3.amazonaws.com/fajeloninesitel/access_to_justice_report_1996_definition.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_off0000d319.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD319 4784 bytes
SHA-256: c259b6f0647ab49c68179b4c10e817388f96cd0f7802ffefb32ed7a38197d82f
font_01_sfnt_off0000e369.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE369 10416 bytes
SHA-256: 2708e60152367e062de70c5bbb45300e1879ba9d0c04755f2dfafc03218847f5

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