Malicious PDF — malware analysis report

Static analysis result for SHA-256 be47b6e0a560ec1c…

MALICIOUS

PDF

79.4 KB Created: 2021-07-16 08:18:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: abe60a833940dda0579cae713e1a4337 SHA-1: 9b1fc583925cb34356de7ef87cd731e3b01a42d6 SHA-256: be47b6e0a560ec1cbefa732559991d8dcfc366a136f26ac86d6580d5b0243bb7
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of embedded URLs, one of which is specifically flagged as an external URI, suggests a phishing or redirection attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URLs point towards a common attack pattern of luring users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5764

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/um1bUVUAM38/square?utm_term=from+iraqi+dinar+to+usd
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60ec8f3a69d4b6336147dc75/1626115899062/bupiduguboboloxoroza.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60f0e522d1d8e65aae83310e/1626400034824/nozoxijanujarafozemisazax.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60e862183ae4426d43edbd0d/1625842200429/fun_offensive_line_drills.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60f0f8e8840b985f2c55e6a7/1626405096794/35557271078.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_off0000d483.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD483 16792 bytes
font_01_sfnt_off0000ec95.bin
4c13c9eafd98006f7d7f1087ac77f83ee81d3ec7168312d80aad3536a0158621		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEC95 16964 bytes
font_02_sfnt_off00011901.bin
065afb76ed507d15a24578144dd8fd0f43ed509adb2728d529be93840078682f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11901 10456 bytes

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