Malicious PDF — malware analysis report

Static analysis result for SHA-256 609fcd9c78cb25e4…

MALICIOUS

PDF

140.4 KB Created: 2021-07-19 06:08:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 2621657160ac821c806f4c944df7c6fc SHA-1: f02f61bcb5995fd918dab794ddaff130fd66f9b2 SHA-256: 609fcd9c78cb25e413ec0d4382e6776ea9a8615db42ce41c93c0b74d910161dc
66 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as a PDF phishing trojan by ClamAV. It contains multiple embedded URLs, some of which are associated with Squarespace, suggesting a potential phishing lure or redirection to malicious content. Although no scripts were explicitly extracted, the presence of embedded URLs and the ClamAV detection strongly indicate a malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier clean score 0.0810

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/razvivatel/yapz/~3/NsX9ihectO0/square?utm_term=dell+poweredge+750+manual
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60f20ab87c06d275666dc522/1626475193110/7671038615.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60e8ef920a287971af97c8a8/1625878418685/be_the_rose_that_grew_from_concrete.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e8a9173c197e145b25dd91/1625860375720/37767582006.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001b51c.bin
25f4e1e9cf867d3e12e27b4d144effc50e3df0d6041d8bd9472318941ee436bb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1B51C 2664 bytes
font_01_sfnt_off0001c07b.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1C07B 16792 bytes
font_02_sfnt_off0001d892.bin
d0909aa8fe71eba90cea13366d929f81a7ead5336fcb73a70a3d201c2ff259fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1D892 10872 bytes
font_03_sfnt_off0001f186.bin
6ae9a57fdd94049aec8ce2a2d7275ea7ad4e1d6a842bda9f812fbdc019f6a1e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1F186 18560 bytes

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