Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e6f788fa28b8476…

MALICIOUS

PDF

79.2 KB Created: 2021-07-12 22:17:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 9a7db24682cb26ac82ab1cc4d0abaf52 SHA-1: 85ec67a691a4fd007a552e3a27a23176c3d2ba57 SHA-256: 3e6f788fa28b84761de4e5fd94c32a65c4fab681141808bb0b77dcf6dcd2d8e5
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating it is likely a phishing or malware distribution attempt. The presence of external URIs, even if some are confirmed benign, suggests a potential for malicious redirection or payload delivery. The document body is heavily obfuscated and unreadable, further supporting a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6665

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/UQ8tT55rDuk/square?utm_term=no+parallel+sides
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60ec91378c19ad4998dc0cdc/1626116407934/xovudomidexi.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60e7db6b8f757b1ac451a7a1/1625807723119/assetto_corsa_server_not_showing_up.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60ec7b734027437375959191/1626110836610/in_another_world_with_my_smartphone_light_novel_epub.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_off0000d583.bin
283761441ecb69e122fd16cb487fd4abc33a01ea0a5d823b759f2833880f12b7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD583 10160 bytes
font_01_sfnt_off0000ec4b.bin
347f3a66b50990ee21637fc06a27f2e85f8402a85061c59033ee7ac23d9c8b9b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEC4B 16932 bytes
font_02_sfnt_off00011819.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11819 16792 bytes

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