Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e2107641fa9f172…

MALICIOUS

PDF

76.0 KB Created: 2021-07-13 18:11:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: c380da3789d33d7f9df6d36ab190f44f SHA-1: 12bc483b65a0ca5d7d6e22d334594a9492b1e3de SHA-256: 8e2107641fa9f1723c70f8e198d87d1dedb08e5bf51fdc7a99ea1ddb1fd28eab
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The presence of embedded URLs and the PDF structure suggest it's designed to exploit users, likely through phishing or by initiating a download of further malicious content. No scripts were extracted, but the PDF's nature points towards an attempt to deceive the user.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7703

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/razvivatel/yapz/~3/um1bUVUAM38/square?utm_term=anteromedial+ankle+pain
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ed8884c439f8287166732f/1626179716430/33452433725.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60ecaaa88c19ad4998dec270/1626122920341/lukulevuputuxuvezukijo.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e81c7138ed220952b04133/1625824369253/spirit_break_out_william_mcdowell_chords.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_off0000c9d0.bin
3ddaa2a362c56b31fee00d65be2cfae3b5d77c3649655cc9457969e5ccc1e42f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC9D0 10456 bytes
font_01_sfnt_off0000e17b.bin
56adb4e07d7d8a6f638e88bbec88bf6f0fa681a70ecaf164b42514ccaf2f8ad5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE17B 16488 bytes
font_02_sfnt_off00010c2e.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10C2E 16792 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.