Malicious PDF — malware analysis report

Static analysis result for SHA-256 52a9964635883c69…

MALICIOUS

PDF

77.1 KB Created: 2021-03-20 22:00:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e00b638025a3712828be6fd22654c442 SHA-1: 9ddf86df1ea21ac49778e12e4bc56551ffe6b11f SHA-256: 52a9964635883c69166bf3757fda0f582f850eb11f3b57f416c745cd5bc2bf30
96 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a machine learning classifier and ClamAV, indicating malicious content. The document body, though heavily obfuscated, appears to be a lure related to a movie review, directing users to a suspicious URL. This URL is likely intended to host a phishing page or download further malware.

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://jumiwimov.ru/aws?utm_term=the+merchant+of+venice+movie+review
    • http://vorgazme.com/ximodobirerevki4.pdf
    • https://cdn-cms.f-static.net/uploads/4445733/normal_6025c55c2cb94.pdf
    • https://cdn-cms.f-static.net/uploads/4464852/normal_600b59e8778a2.pdf
    • https://static.s123-cdn-static.com/uploads/4449395/normal_5feca2423560e.pdf
    • https://static.s123-cdn-static.com/uploads/4490930/normal_5ff0b96d86ee2.pdf
    • https://cdn-cms.f-static.net/uploads/4379841/normal_603c2124e55e4.pdf
    • http://debakabuxaw.22web.org/icao_annex_12_download.pdf
    • https://cdn-cms.f-static.net/uploads/4388280/normal_602d9971ad5bd.pdf
    • http://tuwavetatifida.iblogger.org/22015004239.pdf
    • http://eurofamily.pro/35018048410yhyut.pdf
    • https://cdn-cms.f-static.net/uploads/4368475/normal_5fea45bd355bd.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://uploads.strikinglycdn.com/files/ba655f30-c4f1-4dde-ade7-a5509ad20b97/toshiba_32c120u_manual_espaol.pdf
    • https://uploads.strikinglycdn.com/files/ada60adb-323d-4ad8-a9d3-f4616a79c200/bafuzanigexedakofu.pdf
    • http://zunuzetipe.epizy.com/57918364926.pdf
    • https://uploads.strikinglycdn.com/files/ad87a934-dad0-488d-b8a7-a2f66614defe/lepazubewafigomavix.pdf
    • https://uploads.strikinglycdn.com/files/3182bf91-a4ca-4395-8852-ecae58d95ebf/ver_pelicula_el_principito_online_gratis.pdf
    • http://kegeduwamid.epizy.com/project_almanac_full_movie.pdf
    • http://sevuxomodo.epizy.com/zotof.pdf
    • https://uploads.strikinglycdn.com/files/f70dc978-ef7b-44ad-b787-723c61115e54/lifof.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://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e1d1.bin
fcb82300db9ac4c36f20765fee92f03126b58fc008336925fcca8575d7ab3966
pdf-font-stream PDF embedded font (sfnt) at offset 0xE1D1 4800 bytes
font_01_sfnt_off0000f1fb.bin
9aae4acbf23fb4b2eb064d4c1bc97dc9a0f116a3fe9e967e3be8e5bdfeb4ec90
pdf-font-stream PDF embedded font (sfnt) at offset 0xF1FB 11024 bytes
font_02_sfnt_off0001177f.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3
pdf-font-stream PDF embedded font (sfnt) at offset 0x1177F 4324 bytes