Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d3cf8e9936dfa3e…

MALICIOUS

PDF

83.0 KB Created: 2021-07-12 22:42:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 4e55966d61e8678a4c4bfba893366911 SHA-1: 39693dbcb425eba4e1eab0d6ce4d1440d8e980f3 SHA-256: 8d3cf8e9936dfa3e3ed60cb3e19d602dcf2a1dd690b3d8656b228948677ffeb3
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. The presence of embedded URLs, though many are marked benign, suggests an attempt to redirect the user to malicious content. The PDF structure and embedded artifacts are consistent with malware delivery mechanisms.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8298

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/UZrB20b2Dcg/square?utm_term=lighting+of+the+advent+wreath
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e80a978f757b1ac4536062/1625819799699/film_dolemite_is_my_name.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e8ded80a287971af96951e/1625874136682/xuxaribedobasu.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ec7ded12c1416d2f1a38f1/1626111469826/bopufusexasonikozanu.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e7e082a3609a707bac5617/1625809026805/figeno.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60e7d5398592fe3a58916f71/1625806137317/hey_you_i_hate_your_friends_and_they_hate_me_too_lyrics.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_off0000e2fd.bin
ca386c36e0a41d917aa84c2c0ba6c5911fcaa2f0437eee39da004d83fba1f06a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE2FD 16752 bytes
font_01_sfnt_off00010ee4.bin
1164f8620cc4022c39d9bf5087ce38d4af8168762eaea1c6d982cae70f6cee49		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10EE4 10528 bytes
font_02_sfnt_off000126a8.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x126A8 16792 bytes

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