Malicious PDF — malware analysis report

Static analysis result for SHA-256 93b0e9a90139261a…

MALICIOUS

PDF

78.6 KB Created: 2021-02-27 17:31:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: 60598be20e58a10deccbdaad1f07a854 SHA-1: b62620f167c8de91d0f112b2c0e9fe02e8c81eba SHA-256: 93b0e9a90139261a350c87ecbe7912f49de846f6b3424c477c33c44d2f41ea87
96 Risk Score

Malware Insights

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

The PDF file contains embedded URLs and is flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. The document body, though corrupted, suggests a lure related to a movie review. The presence of external URIs indicates an attempt to redirect the user to malicious content, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://mezovuduw.ru/123?utm_term=como+matar+a+un+ruise%25C3%25B1or+rese%25C3%25B1a+de+la+pelicula PDF link annotation
    • https://cdn.sqhk.co/dadirowuj/hojZTWw/82792754785.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481275/normal_5ff6cfdf2fa51.pdfIn PDF document text
    • http://mikovil.mywebcommunity.org/jaxuna.pdfIn PDF document text
    • https://cdn.sqhk.co/botonerepap/iiPslig/vapatazavoritukeke.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447464/normal_5fd130fa66ef4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4474445/normal_6008ec4b86a77.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4492281/normal_6008d20920fea.pdfIn PDF document text
    • http://sunakijabe.sportsontheweb.net/75844507387.pdfIn PDF document text
    • http://worelimupuvefam.mywebcommunity.org/liborik.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393502/normal_60002a29cb5bb.pdfIn PDF document text
    • https://cdn.sqhk.co/vinasujitupe/kPdAogd/heroes_legend_epic_fantasy_rpg_apk.pdfIn PDF document text
    • http://denizan.com/gixowarotul57s3.pdfIn PDF document text
    • http://fijexojor.getenjoyment.net/16095326255.pdfIn PDF document text
    • http://pemufosapakem.mypressonline.com/vurowoxugilonavokofil.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://zikoliduxa.atwebpages.com/92979079804.pdfIn PDF document text
    • http://nosigegu.onlinewebshop.net/how_many_calories_in_a_restaurant_chicken_soft_taco.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e408.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE408 5336 bytes
SHA-256: 17e25f91b61ec64b2431b7db7aa5957d8ee6e03f9f0d8e71d953c8ad9475c03a
font_01_sfnt_off0000f5cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5CC 11992 bytes
SHA-256: fdb205cb0cd99aca38374cec5880eec1b5973ad1fc79a7d42774e4e76ea63205
font_02_sfnt_off00011ce2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11CE2 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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