PDF malware analysis — malicious · a02ec084547134fe

MALICIOUS

PDF

81.1 KB Created: 2021-07-17 17:30:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)

MD5: cc152117df68a745d028888371509bc8 SHA-1: 125a3da92a9e10b298cd94cb0a1287313cd37fbb SHA-256: a02ec084547134fe37c87ae4925e9c96305b7dd0f4e77989e4a3f98ff1375004

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF was flagged by a machine learning classifier and ClamAV as malicious. The presence of an external URI heuristic suggests it attempts to redirect the user to a remote resource. While no scripts were explicitly extracted, the PDF structure and heuristics indicate a phishing or credential harvesting attempt, likely initiated via spearphishing attachment.

Machine Learning

Nyx PDF Classifier malicious score 0.9438

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/razvivatel/yapz/~3/UQ8tT55rDuk/square?utm_term=senior+network+administrator+interview+questions+and+answers
- https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ee25fee9cbfe6c2fe6561c/1626220030104/85177192439.pdf
- https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ed2c4e0124a666ff412d7b/1626156110411/kellen_name_meaning.pdf
- https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60f2512b6d5e991e36d5e54e/1626493227617/81809430655.pdf
- https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60f058a64381433ecec4f6d7/1626364070817/70542707636.pdf
- https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60e8ad7146aa96117e3b0386/1625861489448/higher_order_questions_for_reading.pdf
- https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60e820a585664d35b0ea60fd/1625825445181/foundations_of_software_testing_by_dorothy_graham.pdf
- https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f0673899acec0fa467175c/1626367800550/two_types_of_articles.pdf
- https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e91c15db8bb141bad93106/1625889813197/cell_biology_quiz_answers.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.

Filename	Kind	Source	Size
`font_00_sfnt_off0000da16.bin` `98b4775179d7651ab54c394e2c5c44ea49e8c19fb99fa93b03137385d11db338`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDA16	10928 bytes
`font_01_sfnt_off0000f343.bin` `351fd9952c28c987f6a248289a7e94643b0bf71dbebd401bb3e46af384374237`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF343	17076 bytes
`font_02_sfnt_off00011fa3.bin` `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11FA3	16792 bytes

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