Malicious PDF — malware analysis report

Static analysis result for SHA-256 82ff6cd0e7a9e17c…

MALICIOUS

PDF

75.1 KB Created: 2021-07-17 17:09:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 2227474965dd7548a7baa4548903c06e SHA-1: 5f9a859004a35b71717100aae88d6fc4e17093cc SHA-256: 82ff6cd0e7a9e17cd1abb23b37cdd722c2e5743ed84fd0d206063e142cda55bd
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was identified as malicious by a machine learning classifier and ClamAV, which specifically flagged it as a Pdf.Phishing.Trojan. The presence of embedded URLs, despite some being marked as benign, suggests a phishing or credential harvesting attempt. The PDF structure and embedded content indicate it's designed to lure users into clicking malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9163

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/EjZ5HCEZs_A/square?utm_term=hedwig+andrew+rannells
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60edabc3c2b60e0ed5b62ce8/1626188739296/gajolikuzalewamatuxalake.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60ee614ef72ce0266e122198/1626235214742/ratedimese.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60f102dbe75c7a046d9acff9/1626407643402/40ft_container_size.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ee4088fc191471fc6cc05b/1626226824373/the_grudge_2_2020.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60ed7be9bc85f73bac285ea8/1626176489538/maxupemotetoxo.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60e7c69181ab8d1aa9de2345/1625802385637/all_good_experiment_should_be.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ec99cb7b14134336dea065/1626118603324/91504323996.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_off0000c485.bin
38b513578b5c8627a2e34c060a3a5c7a696dcfadf0a9345fab50a5d11c83a3a1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC485 10280 bytes
font_01_sfnt_off0000db80.bin
1384b1e052bade50ca0c929aecb76c9050f96e2cc1739ca029e2ddb21ad99a35		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDB80 17344 bytes
font_02_sfnt_off00010894.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10894 16792 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.