Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea80431668ccd4fe…

MALICIOUS

PDF

101.2 KB Created: 2021-07-13 17:15:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 15c0bd3a06f93cf7dd20e0af7cea4c5e SHA-1: f8189e3edd00ecbf199461de069b83f84bf8a131 SHA-256: ea80431668ccd4fe4ea8083e1d3dca359a93b36dd34170990e92871a00226caa
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. The PDF contains embedded URLs that point to external resources, suggesting an attempt to redirect the user to a malicious site. No scripts were extracted, but the presence of embedded URLs and the overall detection profile strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

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/-MXWpcYQ7kA/square?utm_term=to+praise+highly
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ed1943c439f828716130b7/1626151235309/62718678829.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e8e883dc37083541b5f623/1625876611805/comedy_of_manners_in_english_literature.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60e82b854261ba7980646450/1625828229878/zerovumugipugatonat.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60e76c200439116319b1c496/1625779232272/bazepetitimigivebis.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60e8929e02c470579dee57c4/1625854622872/integrated_point_of_sale_system.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60e768ee815bc24aaf15104f/1625778414638/waking_up_fatigued.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60eca3a61996685841abb45a/1626121127036/the_first_american_settlements_crossword_puzzle_answers.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60e8d189c81c3e1fd729e63b/1625870730022/buxubenemirosudabose.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60ec76af31b0b43e07e587c1/1626109615416/how_to_convert_mmhg_to_pascal.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60ec7f453a853d606aebffd5/1626111813638/romeo_and_juliet_free_ebook.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ec78f44027437375955fd3/1626110196583/58378128758.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ec99990f7d8d50062dd354/1626118553194/block_calls_from_unidentified_callers.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e7ab8c52059f1ec1e173d3/1625795468856/27844624909.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60ed4066cdb2ce13c5245e44/1626161254299/zubulabepu.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60ed8ec2c50d503b9d59a862/1626181314962/the_king_of_queens_season_4_episode_21.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ec7fc1de8c3264fe5e8916/1626111937553/commission_agreement_letter.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_off0000fe0c.bin
6d6995779be464b42650c786ba20e54626c5dc36ae0604f05fe129390a0234d9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFE0C 21136 bytes
font_01_sfnt_off000133b1.bin
1254b50cdddb71c71527bc5069bc5801a30e0c4c717c63c04ebce7c4ebdba182		 pdf-font-stream PDF embedded font (sfnt) at offset 0x133B1 21076 bytes
font_02_sfnt_off0001580b.bin
7eb90607481d32e705d1d3c0c378ff83b4d4039928a748428e6733a3991933d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1580B 10408 bytes
font_03_sfnt_off00016fbe.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x16FBE 16792 bytes

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