Malicious PDF — malware analysis report

Static analysis result for SHA-256 e59a553491efd318…

MALICIOUS

PDF

118.9 KB Created: 2021-07-14 09:13:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 782a3ac89392c98b5bbbefc2ebef2b2b SHA-1: 72a48ea27851a1d66e23bf8f54706b4e01a58d4e SHA-256: e59a553491efd318e48b7c5f227e9e87af3256d77651b9c291c5b176ad706633
66 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains an embedded URL that points to a suspicious domain, identified by ClamAV as Pdf.Phishing.Trojan. The presence of this external URI suggests an attempt to redirect the user to a malicious site, likely for phishing or malware distribution. No scripts were extracted, but the embedded URI is a strong indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier clean score 0.0790

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://wastran.ru/square?utm_term=indian+history+terminology+pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e86be4de876b5fc8bbf81e/1625844708247/indian_cabinet_ministers_2020.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e84b14ba193607d16cd3d3/1625836308702/84787621544.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60ecb576cc49a53ffc765149/1626125686371/78251033414.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60e7c9745c1b8460033dfe0e/1625803124497/best_apples_for_sauce.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00013b77.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13B77 16792 bytes
font_01_sfnt_off0001538e.bin
0630198cba76c0c91f73ccfbe19ec5ef10282578d7fd7a2d4b10dd99840a2eaf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1538E 11008 bytes
font_02_sfnt_off00016cbc.bin
d562e15d41db64d66395028932d961709c39f38b44c3621d8bdd83726a9638fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x16CBC 17664 bytes
font_03_sfnt_off00018802.bin
96491beede463be8c2ee765aa31ae628b965c8c9879cc36797f0ae14e8cb1204		 pdf-font-stream PDF embedded font (sfnt) at offset 0x18802 23048 bytes
font_04_sfnt_off0001bfc5.bin
6871504a11fec8e37a077a7872cee32f5225a02772fad86ec2c7c1d50bebed10		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1BFC5 4244 bytes

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