Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a29e31b3f9c2da0…

MALICIOUS

PDF

67.6 KB Created: 2021-01-09 16:42:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 17629d86bbecfc2a65eb8f2485e8b1c8 SHA-1: 2e6b18abb4e0388cc695bdf0e765cf2dc3592c6c SHA-256: 1a29e31b3f9c2da0dffb313e4e6e23ab8712d0a696066db00b0579df51cf947d
152 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains a link to a known malicious redirector, indicating an attempt to phish or deliver malware. The ML classifier and ClamAV detection further support its malicious nature. Although the document body is heavily obfuscated, the presence of a malicious URL is the primary indicator of the attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8161

Heuristics 3

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://traffmen.ru/aws?utm_term=coronary+guide+catheter+selection In PDF document text
    • https://cdn-cms.f-static.net/uploads/4385634/normal_5f8cf767c53c8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365646/normal_5fee06dc9c347.pdfIn PDF document text
    • https://cdn.sqhk.co/nugutobudan/jgghhgh/30614361623.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/228486fe-53b6-4dd2-a006-c3733723d76d/81545684239.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4d0e0256-e7ad-4230-954a-35d081cd0239/best_virus_removal_app_for_iphone_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ffede07e-c107-4ef4-b1a6-8d1cb5cd1bd2/98749453469.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf572a0f-620f-4574-8f05-a3c3428653a3/92875962817.pdfIn PDF document text
    • https://s3.amazonaws.com/memul/formation_apiculture_algerie.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f107486b-7ef2-46c7-b583-3af1be76aa56/newsies_songs_movie.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cc5295a1-690b-47be-b1d0-d4f96ba61ac2/78471354062.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74fdc7ba-ae84-49d4-8d95-b91cbc7cb74f/integrate_ex_sinx.pdfIn PDF document text
    • https://s3.amazonaws.com/lepefi/digimon_cyber_sleuth_digivolution_guide.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ee3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE3E 5208 bytes
SHA-256: e4e14303136ad35295be970820305fdea671d1459c48911b602891464e54f494

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