Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a5e12294a5c7dd7…

MALICIOUS

PDF

78.9 KB Created: 2021-07-20 03:14:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: f2a11a449dd925b0b506bf2dedf9c214 SHA-1: 6787199c10b5f7195df2f24924fd7b9c972e28a4 SHA-256: 8a5e12294a5c7dd737e05ff094bb7eefc1644cce6465595bbec06b4d130ad9f3
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains embedded URLs that likely lead to further malicious content or phishing pages. The presence of these URLs suggests an attempt to trick users into downloading or visiting harmful sites, aligning with spearphishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8755

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=download+angular+template+free
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e855444d8ba653d3aa4e10/1625838917049/tokefumosid.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60f082048794681325080c16/1626374660789/the_noonday_demon_an_atlas_of_depression_download.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e9178e8fb24157da6fb662/1625888654751/39348338772.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60e76bf54e14410b5d336064/1625779189223/piano_notes_for_perfect.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e853981058ba599890d09d/1625838488195/low_purine_meaning.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60e8f95db132fa3620718f23/1625880925716/kendall_jenner_now.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f436aaac7784023573c7c9/1626617514378/rotabozinam.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_off0000d2f4.bin
8ffc71e6c53db62ac0bfd7db1edd856110aecfc39de339d8a6970ae48daf78f9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD2F4 16956 bytes
font_01_sfnt_off0000ff1a.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFF1A 16792 bytes
font_02_sfnt_off00011731.bin
db3ab75543682c056a1803fcff53ce4c2217f12bb58405532f7a591a53b164de		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11731 10768 bytes

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