Malicious PDF — malware analysis report

Static analysis result for SHA-256 e88d7ecf7c882a4a…

MALICIOUS

PDF

181.7 KB Created: 2021-07-12 21:23:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 0650039d48df28be3a1a266cbb0c7246 SHA-1: e2f4b20aa73e556efd906211270093774b8dd886 SHA-256: e88d7ecf7c882a4abbd028081775790e72a719c99cd8ddaa49bdd98771c681c4
74 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The file was detected by ClamAV as Pdf.Phishing.Trojan. The document contains urgency lures, suggesting it is designed to trick the user into taking immediate action. While no scripts were extracted, the presence of embedded URLs and the phishing lure indicate a likely attempt to redirect the user to a malicious site or prompt a download.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4707

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/iYdez4bKglI/square?utm_term=s36+road+traffic+act
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60e9460af229ba2ea83812e6/1625900554141/gesegenaxi.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60ec7fc7bdd82073f6feaf23/1626111943764/wawunevubedasanewaxifubul.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60e787f2dd9f097edeccb5bf/1625786354288/zukanivopilagesuxus.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ec7a0af89f8e700bf677a6/1626110474958/baby_names_that_start_with_g_for_a_boy.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60e77f6273c42b1aacff36b5/1625784162206/charitable_contribution_from_ira_2020.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60ec7b26a1f8f93f64aaec03/1626110758917/lidaz.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_off00026e0d.bin
a7403ddef246586b70a847974512a2a87897fdcb0fb73322f58458933d50fe05		 pdf-font-stream PDF embedded font (sfnt) at offset 0x26E0D 10432 bytes
font_01_sfnt_off000285d3.bin
5fcd0c8642b5dd372846a20e758bbf02a34cd5f0dd5ad0e87ee91b92ab6a429e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x285D3 17052 bytes
font_02_sfnt_off0002b29b.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B29B 16792 bytes

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