Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2e8afbd0502bb8e…

MALICIOUS

PDF

76.2 KB Created: 2021-07-17 05:51:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: f973353bd7badbc30393dd948960f175 SHA-1: af791657a1ff28a297135d7e8fe50468605850cd SHA-256: d2e8afbd0502bb8eeac57b5740d5d62aaed92ea03ee673d6600c99ac97bb8e6c
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 phishing attempt. The embedded URL points to a suspicious link, likely leading to a phishing page. No scripts were extracted, but the PDF structure and embedded URLs suggest a phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9163

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://feedproxy.google.com/~r/sq/ugae/~3/5Aj-mlxkUx8/square?utm_term=dog+waste+removal+companies+near+me
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60ee15298feeeb055d96e555/1626215722046/mixikumazirojafi.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60f08b60f6c6840c1d6a4dd9/1626377057211/move_from_android_to_ios_interrupted.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ee31eb7d49fb55d626a5d1/1626223084008/line_of_action_poses.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60e8fdde3ba7d954d544a1a6/1625882078425/valowabiravitinajowusap.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e923432dabf27235547288/1625891651911/rujutigel.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f0e08cfcdff1298e51c165/1626398860975/1648539245.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60ee12fa2a4cda17625ae5ac/1626215163111/medicare_and_taxes.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_off0000c6a6.bin
26c77738bb2cc7a0419c633699ad29925bf5055af727d8704b79b7fa0f796eb9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC6A6 10872 bytes
font_01_sfnt_off0000dfd7.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDFD7 16792 bytes
font_02_sfnt_off0000f7e9.bin
827aecf6cfb0af73a1ebeadf9cb634055479abe06c73ac4443935ba5ee44300d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF7E9 17088 bytes

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