PDF malware analysis — malicious · 317faa3bce110697

MALICIOUS

PDF

82.2 KB Created: 2021-07-15 16:38:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)

MD5: 8b65107229aa646eb805988150f11a57 SHA-1: 19ac3891d4976754e06cc6343953d57997842e46 SHA-256: 317faa3bce11069722dc4658958266e5acb3efad4d9bb7b2fafa8ff51466c1d4

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 PDF contains embedded URLs, one of which is flagged as potentially malicious, suggesting a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the presence of embedded URLs and the nature of the detection point towards an attempt to redirect the user to a harmful site.

Machine Learning

Nyx PDF Classifier malicious score 0.9627

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/~3/5JeRQhMeIYg/square?utm_term=teaching+about+obedience+in+the+bible
- https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60e893b7c4746d4c4c78e909/1625854903621/can_excel_open.pdf
- https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60e876673249a603870a3ed6/1625847399453/cool_fortnite_profile_pictures.pdf
- https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ed9f05f53e3457ef870021/1626185477546/nelejajemoxivuzunenu.pdf
- https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e9333bb132fa3620741c34/1625895739986/if_the_nth_term_of_an_ap_9_7_5.pdf
- https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ed9a4b76150b527e9aa0be/1626184267167/razaparukanikidufodavexa.pdf
- https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60e930703ba7d954d546b124/1625895024621/45755447512.pdf
- https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60ed921239532c3941c2924f/1626182162895/rivokezivurifotu.pdf
- https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e83af85011eb36d5d6388b/1625832185088/straight_truck_with_tailgate.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_off0000df5a.bin` `867118c555fa95d0393b2e429ce00b68684b45a32e2512179b48f46f577f3d65`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDF5A	17412 bytes
`font_01_sfnt_off00010cc6.bin` `50f9b1a1965228a95f833846b3bebc4191f5d9e839e5ba404ca3087556e9bcdc`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10CC6	10584 bytes
`font_02_sfnt_off000124a5.bin` `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x124A5	16792 bytes

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