Malicious PDF — malware analysis report

Static analysis result for SHA-256 1be2f465faaf0654…

MALICIOUS

PDF

103.4 KB Created: 2021-07-17 18:39:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 1d87347811a098087cde4ca8b326764a SHA-1: 93dc90f0cad60cb5ead7aa5fa41ed4635d2f36fc SHA-256: 1be2f465faaf065428b33560ab11b5fb9578fe082522cc7a47c1baa9593cc00f
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was identified as malicious by ML classifiers and ClamAV, with a specific detection name indicating phishing and trojan characteristics. While no executable scripts were extracted, the presence of embedded URLs, one of which is listed as a potential indicator of compromise, suggests a phishing or payload delivery attempt. The PDF structure itself is also noted as having duplicate object bodies, which can sometimes be used for obfuscation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8527

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/~3/4aHNpQc2m6I/square?utm_term=pokemon+world+map+official
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60e8df045fa2eb14b908281f/1625874180438/91387881313.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60f280bbac7784023562a193/1626505403680/architecture_website_templates_free_download.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ee54514d490f6727538c3f/1626231889825/how_to_make_your_freckles_more_noticeable.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60ee321f3753dc428c878907/1626223135229/715792984.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60e78175d0c92d435c33626f/1625784693280/grey_water_reed_bed.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f24b0a29712869f05c122d/1626491659052/31399187909.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60ec942e934d360eb289c5b3/1626117166705/8353795984.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60edb9b43c7c983c926f8e3a/1626192308992/how_to_convert_word_docx_to.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_off00012753.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12753 16792 bytes
font_01_sfnt_off00013f6a.bin
a93d0a8a56fde6e97ecd00e71dfdb6b7978425b65e693a2d7e6ed495fa46b872		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13F6A 10692 bytes
font_02_sfnt_off000157e5.bin
b82aa55c526e3120b842ab095c774f62de9f0c0c7e2d27d27968446fa580b6c2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x157E5 2560 bytes
font_03_sfnt_off000162f0.bin
4a24c23dfa260f6e5df7079dba176b21aceed8aaad4358e083fd09262f842fbc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x162F0 17192 bytes

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