Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7e63a37d52d9a6e…

MALICIOUS

PDF

78.1 KB Created: 2021-07-13 00:58:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 01359d9616b24e2fda4cf153681399ec SHA-1: 481716364291d7d4772c72b2e21f2b8625811eb2 SHA-256: c7e63a37d52d9a6e3bf4da95339eabe34ffae84924873e924f6998bc81850f2b
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 PDF contains embedded URLs that point to external resources, suggesting it may be used to redirect users to phishing sites or download further malicious content. The presence of PDF_URI and EMBEDDED_URL heuristics further supports this attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8678

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/razvivatel/yapz/~3/pL_UGxDroB4/square?utm_term=500+miles+tab+peter+paul+and+mary
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60e7a865a431ed42d2f90d53/1625794661997/dewuleloterumiwurideberu.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60e96719dc37083541bac71b/1625909017747/vil_meaning_in_english.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60ecb6bbea6ac66906854a67/1626126011953/how_much_is_750_ml_in_ounces.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60e8db30ea5a3748ec5cb7e2/1625873200649/87670533953.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60ecb5c045c120300361c151/1626125760573/bible_verse_about_love_love_is_patient.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60e80bfd872c4c6263c6b7c3/1625820157250/15353571617.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ec8b01a3e9df788e6e181f/1626114817539/5169041079.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_off0000ca1b.bin
91c62f1bab2b0dab44ee1b53f149236e9dbf252be50f165ae072617cd247870d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCA1B 10948 bytes
font_01_sfnt_off0000e342.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE342 16792 bytes
font_02_sfnt_off0000fb54.bin
7dceb0e99c56bc5c039612393b80af31185fd293e882b13dff88df69461de5ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFB54 18808 bytes

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