Malicious PDF — malware analysis report

Static analysis result for SHA-256 f42795e1b88e6a3b…

MALICIOUS

PDF

84.7 KB Created: 2021-07-14 05:41:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: f5afe779ccd17eef49b75a235b743adc SHA-1: 78cb7298b91d586cac273b5e74a703b49ad73079 SHA-256: f42795e1b88e6a3bb721be134d8f77c5652f37691bb9f322d43407e77c4d4f31
66 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV with a signature indicating phishing and trojan characteristics. It contains an embedded URI pointing to 'garglob.ru', which is likely a phishing domain. The PDF's structure and embedded content suggest it's designed to trick users into visiting this URL, potentially for credential harvesting or malware delivery.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4086

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://garglob.ru/square?utm_term=wireless+display+apk+download
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e928780cbdad4d3506154e/1625892984074/ruwixosiwugisevaw.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60ee243d588fb56695128fb5/1626219581395/what_can_a_lever_do.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60e7d357dbc52028c83f3120/1625805655954/west_penn_power_outage.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_off0000d424.bin
9d5144547e0b729630886a3ad3ce48e7da84b0115899dd9c2390406af6f0fecd		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD424 16092 bytes
font_01_sfnt_off0000e969.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE969 16792 bytes
font_02_sfnt_off0001017b.bin
490b3abaf6edc4c675e7520997f080ffb7d8e284a0ff8bacdfbf291dae9027f1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1017B 17080 bytes
font_03_sfnt_off00012e7b.bin
048c2ba1bfaef3571ab09e6243d21dd66e280d3b8a5b9cf699ff3169e7b4fba5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12E7B 10572 bytes

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