Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c5962dcc91564e4…

MALICIOUS

PDF

89.5 KB Created: 2021-07-13 18:43:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: cb242b9e75286d681bd9905de88aa084 SHA-1: 639975fe8cb34ad5878f11c2029ee6a338dfdf7f SHA-256: 5c5962dcc91564e4e3a0ebd9ec70a23b1e66dfbef0d7a213770b302d9b01a44e
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI that, while currently marked as benign, points to a URL that mimics a search result for a movie torrent, a common lure for phishing or malware distribution. The document body is heavily obfuscated and unreadable, suggesting an attempt to hide its malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8322

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/RVI1sXQGPkU/square?utm_term=phineas+and+ferb+the+movie+torrent
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60e9386a83ae0c490239e066/1625897066884/srs_document_for_banking_system.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ec7812b8cbe518df56c90d/1626109970760/luwewuwepeboxokemozefuxuv.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60ed986a9a9df7051d3ecb67/1626183786604/sinizipelofesulagov.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ed8b8836a7a57c1cf4b0e6/1626180488446/42729180996.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e818a94b964f05b84a75ad/1625823401431/intended_tamil_meaning.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e92be48ce0e10532d30b49/1625893860743/14254043741.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_off0000f64a.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF64A 16792 bytes
font_01_sfnt_off00010e5c.bin
b92f5a1fca66772136ffa227e3d251647f319c5f3fa32219e8fe3d7def889321		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10E5C 19964 bytes
font_02_sfnt_off0001414f.bin
49c8d960fff065107250d3bb55bd95a20c90d1247135fa182d17692dd2a81df0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1414F 10780 bytes

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