Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd9f2c062015aedb…

MALICIOUS

PDF

90.7 KB Created: 2021-07-17 11:03:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: ea53ca6ff3a431606e5749beb41e2097 SHA-1: 353912f3c3d71568205b444466c9f6c01dbb11c2 SHA-256: dd9f2c062015aedb6d7db05ad59893d58777cef1d55eed7b553489cd296d1977
106 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The heuristic 'SE_ADVANCE_FEE_SCAM_LURE' indicates the document's content is designed to trick users into believing they are owed money or a prize, requiring them to take further action. The presence of multiple external URIs, though marked as benign, suggests an attempt to redirect the user or gather information. The ClamAV detection further confirms its malicious nature, classifying it as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier clean score 0.1448

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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/gPkW7oTCsL0/square?utm_term=project+report+on+advertising+and+sales+promotion+pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60ee56520a53c127f5da503c/1626232403108/hacking_call_of_duty_mobile.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f25809fb6d8f5e804e559e/1626494985931/paxezolawuwadenezojorefeg.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_off0000fdfb.bin
f150bda66f30dd9267760a5358b1f46805e521901dac7cd68330bd590e21ebd7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFDFB 11160 bytes
font_01_sfnt_off000117d7.bin
b6d5c58144da82385cac79619cfab91a878e7750e8c914f8fa9f709f8b43eb51		 pdf-font-stream PDF embedded font (sfnt) at offset 0x117D7 18092 bytes
font_02_sfnt_off000146da.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x146DA 16792 bytes

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