Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc2ce9e757ab6f9d…

MALICIOUS

PDF

75.9 KB Created: 2021-07-12 21:34:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 96dcaf8dc50e824888a8842db76f630c SHA-1: f11d59d8d72d9b588a055cdcef282054a9de40a3 SHA-256: dc2ce9e757ab6f9d05a1b003289f710322df0bb7083140c8984fa95d5d55e97d
66 Risk Score

Malware Insights

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

The ClamAV heuristic identified this PDF as 'Pdf.Phishing.Trojan', indicating a malicious intent. The presence of embedded URLs, although marked as benign, suggests a potential lure or redirection mechanism. The file's structure and the detection name point towards a phishing or trojan delivery attempt, likely via spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier clean score 0.1751

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/~3/5Aj-mlxkUx8/square?utm_term=computer+mcqs+with+answers+pdf+free+download
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60ec8b440d838b6c850dcd1d/1626114885019/9602286666.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_off0000c555.bin
986c114be32651eeabc7e86a7a874bb760d4ba0185ad75d0121528118a8557cb		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC555 11248 bytes
font_01_sfnt_off0000df60.bin
c8a103b461433b973a86e13984adb12532d8580266e879182f8c63a23329f22f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDF60 17036 bytes
font_02_sfnt_off00010bed.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10BED 16792 bytes

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