Malicious PDF — malware analysis report

Static analysis result for SHA-256 160eea9dec1c0836…

MALICIOUS

PDF

74.1 KB Created: 2021-07-16 04:58:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: e62a84ec53c9c48d6db22d9fbb055cfb SHA-1: fa85a2ccbd2b8df80b2f26ba59ad3bcc8a6deb51 SHA-256: 160eea9dec1c083609f0aeee1326e11f80ef59f7b7b8b2298bd57b9580f2c831
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 resource that likely hosts a phishing page, designed to trick users into providing sensitive information. No scripts were extracted, but the PDF structure and heuristics suggest malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7703

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/v-xubMviL4Y/square?utm_term=alcohol+home+delivery+near+me
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60e9156fc4c1a734c5d64754/1625888112047/what_does_yw_mean_in_texting.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60ede3f6c6126f45c3e272c4/1626203126840/limekibuduxoboxu.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60ee73ff588fb5669517b44f/1626239999595/jetetezajunavixud.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_off0000c6bd.bin
eac1955371d5a8697c71700ef759fcc0711601d25e216cb116140ca506a09efa		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC6BD 10532 bytes
font_01_sfnt_off0000de83.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDE83 16792 bytes
font_02_sfnt_off0000f695.bin
2bd9a524656b58e0c5158d9777a05f57a95f2b72a25335a486a59e848d4cce03		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF695 15076 bytes

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