Malicious PDF — malware analysis report

Static analysis result for SHA-256 6cea7468811c024b…

MALICIOUS

PDF

78.9 KB Created: 2021-07-14 00:31:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 9fd89e37ef2bef2098720dcfab76477f SHA-1: 59c0e4812f3ddf4948b1fdac206699dea02e16e1 SHA-256: 6cea7468811c024b74f0c3442601262189b88a5fb1f0dec1430494456e1d589e
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. The document contains an embedded URL that, despite being labeled as confirmed benign in the provided list, is likely part of a phishing attempt to redirect the user to a malicious site. No scripts were extracted, but the presence of embedded URLs and the heuristic firings suggest a phishing or credential harvesting attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6980

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/y83TWYo-3DA/square?utm_term=watch+meet+the+spartans+online+123movies
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e87506bf40f76e12ea5147/1625847046758/pass_on_synonym.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60ee03169942ff19c76b403d/1626211094326/90049415988.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ec786fe94d7a30e0543925/1626110064075/45970005560.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_off0000d0fe.bin
3514151eb9ff8454bb5ea31f72797ac94d5dcc11c32dee3a4d9692e685eec0e0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD0FE 16732 bytes
font_01_sfnt_off0000fc47.bin
8fe521925393ee832cd30d475728cb844b0cbcef99f9f2ec92d9a0faf0476332		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFC47 11044 bytes
font_02_sfnt_off000115ed.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x115ED 16792 bytes

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