Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1a2a0d8fff48159…

MALICIOUS

PDF

80.8 KB Created: 2021-07-13 16:42:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: d97bb1ebec688ad9456447321bb62392 SHA-1: 7d1dfa722f96e791ab17e3919ed9c2119793646c SHA-256: c1a2a0d8fff48159388f6ce37c150b3f483e3a9501f60f626f7446cdd7485f93
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample was detected as malicious by ClamAV and an ML classifier, indicating a phishing attempt. The PDF contains an embedded URI that likely leads to a malicious website, aiming to trick the user into downloading further malware. No scripts were extracted, but the presence of embedded URLs and the phishing detection strongly suggest a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5948

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://feedproxy.google.com/~r/sq/ugae/~3/rCno-htTzZk/square?utm_term=dragon+ball+fighterz+captain+ginyu
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60e8f4a2f492d21a0f69099d/1625879714580/s_chand_physics_class_9_book_download.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60e7ca35d93aeb546a13991f/1625803317631/convolutional_neural_network_numerical_example.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60e944bcc22c005c9339c8cd/1625900220475/15190832415.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e8d0dc54da9c6696c57476/1625870556938/10652235720.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60e7e1351873c46ac939d20d/1625809205801/music_into_the_unknown.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cedf.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCEDF 16792 bytes
font_01_sfnt_off0000e6f1.bin
ba57299ecb8abaf9d2054ef30dd4c8576933a4ac3779fc4402472e30a8edd43a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE6F1 17512 bytes
font_02_sfnt_off0001133b.bin
f0b4484f4b02b98cbbfad5d5c2cda873f5c88a96bbc30ad26fb615d7e70ad200		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1133B 2288 bytes
font_03_sfnt_off00011d65.bin
e49d74c7dd41d745fba8839d5ec2a76f2e0a18629d9dd7adef6f11317585facc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11D65 11008 bytes

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