Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9e406c76b9806b2…

MALICIOUS

PDF

73.4 KB Created: 2021-05-18 18:14:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1462587b3f91d18d2fb08329f258a49d SHA-1: f40b7f26eaf4e71930f3b8f9f27ba66d2b714c65 SHA-256: d9e406c76b9806b22b3554501600c4346d099ce7443f9f36ee98ae1114e1297f
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF that was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. The embedded URLs and the document body suggest a lure to download a PDF, likely containing further malicious content or leading to a phishing site. While no scripts were explicitly extracted, the PDF format can embed JavaScript, which is often used to initiate malicious actions like downloading secondary payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://gearforfree.com/wp-content/plugins/super-forms/uploads/php/files/p8ap71lbmfpi1c45c9m7m92m1o/24478948402.pdf
    • http://emotionpicturesfestival.gr/userfiles/file/niwonupijor.pdf
    • https://www.wikiwebagency.it/wp-content/plugins/super-forms/uploads/php/files/18c199917a83ce74d67988e03d4e54c8/99875835293.pdf
    • http://www.festivalmarrakech.info/wp-content/plugins/formcraft/file-upload/server/content/files/1608f37c47140e---23341083441.pdf
    • https://www.surajinformatics.com/wp-content/plugins/super-forms/uploads/php/files/9936701e5663344868d6efd96a7c3042/fagaseke.pdf
    • https://www.webhisto.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16081f9b7ea7f9---25719666967.pdf
    • https://myupfield.link/wp-content/plugins/super-forms/uploads/php/files/pf3s1e7hk5idkagjivlbbnv6pg/4876743592.pdf
    • http://altaprecision.com/userfiles/file/nejenumibubagavuradur.pdf
    • http://xboxheerlen.nl/userfiles/file/parinefovexojefokaduxitog.pdf
    • http://charivne.info/images/file/10224895221.pdf
    • http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/160a279cd1ae43---38542579741.pdf
    • http://juniorsmagazine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608860538bf27---52708919454.pdf
    • http://profisystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607ea05c91561---judubetiferaxatim.pdf
    • http://www.idenet.net/wp-content/plugins/formcraft/file-upload/server/content/files/1609bef36046a8---59785739610.pdf
    • http://alnoorcity.com/userfiles/file/63754781748.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=histologia+basica+junqueira+e+carneiro+pdf+baixar
    • 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://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d2f3.bin
e1d37988330b6bf7a58a18caa69ea4ac809c8f6665ca6a51f64f89458e6a29d3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD2F3 5576 bytes
font_01_sfnt_off0000e5e5.bin
6096a1af37c0a8b233423b53e9c316c2297b3325a32a6d1cc1b8f10ea58fa134		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE5E5 11556 bytes
font_02_sfnt_off00010a15.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10A15 4324 bytes

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