Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8a4d0f9840f3b46…

MALICIOUS

PDF

76.8 KB Created: 2021-07-19 04:04:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 0a7e920fd20a0b7dbb59230ecb169873 SHA-1: 24e1411867e944cea314b7bcf02d067952abd40f SHA-256: f8a4d0f9840f3b4638d1d4909815ad78db075a1821d771191385e527224d7b58
66 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV with a phishing and trojan signature. It contains embedded URLs, one of which points to a Squarespace domain, suggesting a potential lure. Although the document body is heavily obfuscated and unreadable, the presence of embedded URLs and the ClamAV detection strongly indicate a phishing or scam attempt. No scripts were extracted, limiting the analysis of specific malicious behaviors.

Machine Learning

  • Nyx PDF Classifier clean score 0.2489

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/aauXj3bnHUA/square?utm_term=how+far+is+it+from+tampa+florida+to+sarasota+florida
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f4a1483a33e4096deaaa58/1626644808625/rizuwupiwegamabak.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60edded5ac614e13d12fd9cd/1626201813664/stupid_funny_meaning.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_off0000cb4c.bin
dffefb1ede2d002663c5c57ee307d4aa3f29d6bec16d3125b81acb0f5db6bbdb		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCB4C 10500 bytes
font_01_sfnt_off0000e337.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE337 16792 bytes
font_02_sfnt_off0000fb49.bin
6a0c5057edea30a72ce530367f895eb28414064d40790f42d1b7a502811898c3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFB49 16808 bytes

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