Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0049e832cf017d7…

MALICIOUS

PDF

81.1 KB Created: 2021-07-17 21:13:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 11466205da532533eb2a483657df3c40 SHA-1: 5f10d8768fabcb2f2e32083ee913f87141218bf2 SHA-256: e0049e832cf017d7318c1e6d88456cb22b03443821bc49830efd09f0c2080249
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 presence of an embedded URL suggests a phishing or social engineering attack, aiming to trick the user into visiting a malicious site or downloading further content. The PDF structure itself contains duplicate objects, which can sometimes be used to obfuscate malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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/razvivatel/yapz/~3/IdU8rIDf9lQ/square?utm_term=pipe+fabricators+blue+book+free+download
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f1f8757c06d275666c7256/1626470517563/tinibugevawojituwafuwobiw.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60efe66b90ddb31b72a6d64f/1626334827119/stylish_small_alphabets_a_to_z.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ee89077dee9f188f7c859c/1626245383354/53313375138.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f138d78bcf896c915fb8c1/1626421464071/xedujesumef.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60f222e08772971f6d285bc9/1626481376126/professional_ethics_and_indian_constitution_diploma_notes.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60f2a0d581f38b20587ed95c/1626513621446/744799061.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f27ec6a9adb728039e2ebc/1626504902935/ayers_pear_pollination.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60f048f64328b83e4c831e2a/1626360054963/homeopathic_medicine_guide.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60e8e3922c5c2f6215c5e64c/1625875346679/93435135889.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e92c9f37cb90447560619d/1625894047525/palibasajitotawi.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60f02bc436870d1a2db95f04/1626352580833/46016825376.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60f1e3f729b89860490c4a51/1626465271409/7086736429.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60ee73802485902f3e76af0d/1626239872086/kasukokozogi.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_off0000daa2.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDAA2 16792 bytes
font_01_sfnt_off0000f2b9.bin
5021c417993d9ccdb2e9ede3ab00fa25596bc09c2f3f4380990e726fb7b8aee8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF2B9 11032 bytes
font_02_sfnt_off00010c5a.bin
80d452521c06ab4bf63ab701cef1072b371130e823fb23dd2c98594e5b2eff4e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10C5A 16656 bytes

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