Malicious PDF — malware analysis report

Static analysis result for SHA-256 22979855da99794b…

MALICIOUS

PDF

66.2 KB Created: 2020-11-24 00:46:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 5ad4e49aa57673486631bdf224c35a7f SHA-1: 1fbe082d482e50f06bafbb0c4582dcfd2066c244 SHA-256: 22979855da99794b3b58c2906d0eef8782433a7e328b6373ee317d60be04df07
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://traffset.ru/123?utm_term=maniac+magee+movie+streaming PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4421040/normal_5fa6ea0390ea6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4502245/normal_5fad397f54070.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447647/normal_5fa985cbc9930.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368222/normal_5fae52b1c1550.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366377/normal_5f87352cd42c2.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/44adf4a9-65bf-4ec9-8cce-8608bb70641c/zezixujekeb.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f4999bf8-eb64-414c-85ab-91d56c92f009/science_fair_projects_for_10_graders.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e22c2231-3252-40c1-8e66-613d56fffa5b/alex_rider_skeleton_key_audiobook.pdfIn PDF document text
    • https://s3.amazonaws.com/sazixipame/ririmitikivekinivikugejoz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ad5b27d8-da7f-4758-a84e-e7398d7263ec/galasadujiwef.pdfIn PDF document text
    • https://s3.amazonaws.com/nefomojuwet/runescape_hidey_hole_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5df1d127-1b12-407e-a8f4-79fe52ccf1b5/the_message_to_the_blackman.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_off0000c736.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC736 5152 bytes
SHA-256: 175a8c8df91136dd68bbc167a39edf93ee6c87d9b57535f66f1e8e7459c82e56
font_01_sfnt_off0000d8bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8BB 10420 bytes
SHA-256: 3ad2a8e63324d54ddc3f9b3f5e5d73c6df023110145b1611cfedf174a72faef0

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