Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d0814496cb53ddf…

MALICIOUS

PDF

77.5 KB Created: 2021-07-12 22:02:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 310a7281689e6c5848e689ff1fa8fa7b SHA-1: 2dc150680d6cbcac08a9c86e02b48d736b372cf6 SHA-256: 3d0814496cb53ddf4e95786de26464bdc24dd9b51529bf0f6c606ada144e842c
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely intended to redirect the user to a phishing site. No scripts were extracted, but the PDF structure and heuristics indicate a malicious intent to deliver a payload or redirect to a malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9680

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://cructi.ru/square?utm_term=exercises+of+present+simple+and+continuous
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60e7996b4b964f05b8444582/1625790827806/vefezeloni.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e81ab4ba333063f17b124f/1625823924662/88436105952.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ec8aa420781e4bb11cab32/1626114725134/mutilate_a_doll_2_hacked_unblocked.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e8ab1b261b7f2579ab5a2e/1625860891935/fijimub.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e7994a86d8930991a28f1f/1625790794328/the_lusty_argonian_maid_book_full.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60ec8df40f7d8d50062c7de7/1626115572818/wesur.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e779f11bd7543d7b5c2f72/1625782769631/fekuveduved.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60ec780a82b4c978cf4062bd/1626109962712/netefelaravipodorisolov.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_off0000cc21.bin
cb8c254a109dc95ed63d2c1c8a5235ccd5a0ade60af53537f6f87aa1281c498e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCC21 10964 bytes
font_01_sfnt_off0000e590.bin
76ab8f62749af0dae2a1dd0d3bb99bcdd31e4649a3a9e6f305c68cc6cdb56b62		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE590 17104 bytes
font_02_sfnt_off000111e1.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x111E1 16792 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.