Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9736784d9ea2db0…

MALICIOUS

PDF

74.9 KB Created: 2021-07-20 06:45:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: a3c215e125cbc16d64672d3851508230 SHA-1: 22e6b6fcb72456e2a2e147b7b57820548fb2cc72 SHA-256: e9736784d9ea2db0443fecee31ecbf9dba9750fe2e96dd107204ebf064c553b6
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample was identified as malicious by a ML classifier and ClamAV, indicating a phishing or trojan threat. It contains embedded URIs, suggesting it may be used to redirect users to malicious websites or download further payloads. The presence of PDF-specific heuristics and embedded URLs points towards a potential spearphishing attachment attack vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7483

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/r_nBws6J8g8/square?utm_term=how+many+calories+in+cup+of+almond+flour
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60f3d7a41d35070742241c9f/1626593188904/25765565432.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f1388e3d214e0c07822704/1626421390530/filthy_lucre_meaning.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60e8ee35dc37083541b6609e/1625878069687/one_minute_manager_free.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60edd75324c32e4364b379c2/1626199891356/witcher_3_weapons_guide.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_off0000c69b.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC69B 16792 bytes
font_01_sfnt_off0000dead.bin
7bcd557588c5dec48ecf6c9e9c0dd1094d8875c845c8148ee8a64c3ffada9739		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDEAD 15508 bytes
font_02_sfnt_off00010661.bin
7e8e7df778f164257ed9fdb75d0486f20c916fbf9012fb94c4da048234a607ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10661 10972 bytes

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