Malicious PDF — malware analysis report

Static analysis result for SHA-256 2696e292e6eda910…

MALICIOUS

PDF

74.8 KB Created: 2021-07-14 00:08:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 82c8078970f0e407bbd626e2020d56df SHA-1: cb2089b5f49d6b296e4427f4fa484ffb8c21aa3f SHA-256: 2696e292e6eda91045d95e7a5fc363ec9f37920907eee1fe920feb0d79a40e4b
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF was flagged by a machine learning classifier and ClamAV as malicious, indicating it likely exploits a vulnerability or contains malicious content. The presence of embedded URLs, even those marked as benign, suggests an attempt to redirect the user to malicious sites or download further payloads. The document body is heavily obfuscated, preventing a clear understanding of the specific lure, but the overall indicators point to a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8028

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://feedproxy.google.com/~r/sq/ugae/~3/eaN1Eb74jJI/square?utm_term=how+do+i+insert+a+picture+in+adobe+illustrator
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e922882f3c4128e18a49a1/1625891464567/limifil.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60edff25a9aa746350cf854a/1626210085680/law_of_cosine_word_problems_with_answers.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60ee00c936d517042363d443/1626210505945/railway_group_d_all_135_shift_in_bengali.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c461.bin
80624e1938930f9431579f68d10d3870ac2d4ca576d8143a89f5377b2eaf0222		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC461 16316 bytes
font_01_sfnt_off0000ee6c.bin
4bbef0d371d63b981b4ce7e3577dd384628bb3a62e50f2d85fff6c8d4d04cb04		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEE6C 10824 bytes
font_02_sfnt_off0001074f.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1074F 16792 bytes

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