Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa0f17122fff53ad…

MALICIOUS

PDF

75.2 KB Created: 2021-03-04 05:27:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 86c75c7b748277f8058426f48fdd392c SHA-1: 4fc031bfd11da445c8cf012985f57037d928e185 SHA-256: aa0f17122fff53adfd78b442d96a905569160c9ae848fc084a47464765e06b82
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that leads to a domain associated with malicious activity, as indicated by the ML classifier and ClamAV detection. The document body, though heavily obfuscated, contains text related to '2019 jeep grand cherokee oil reset', suggesting a lure to trick users into clicking the malicious link. The presence of an external URI points towards an attempt to redirect the user to a potentially harmful site.

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://lozipotod.ru/123?utm_term=2019+jeep+grand+cherokee+oil+reset
    • http://pimebujeben.66ghz.com/nakiliz.pdf
    • http://lnstagramcopyrighthelps.com/22132683087ffumt.pdf
    • http://nextauto02.ru/sosisejotavikafii1bxz.pdf
    • http://xamojofar.22web.org/4249925335.pdf
    • http://vanufitil.22web.org/eccentric_exercises_for_patellar_tendonitis.pdf
    • http://mon-cmbretagne.com/43151919334826e3.pdf
    • http://selolaz.66ghz.com/95677613136.pdf
    • https://cdn-cms.f-static.net/uploads/4387244/normal_5fd0da989f2c5.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://zafazemebotege.rf.gd/14530906671.pdf
    • http://kajufikuxididon.rf.gd/ts_eliot_love_song_j_alfred_prufrock_analysis_line_by_line.pdf
    • http://bisobowezite.rf.gd/singapore_punggol_weather_report.pdf
    • http://megutid.epizy.com/animal_and_plant_cell_quiz.pdf
    • http://roxujewov.myartsonline.com/52939888262.pdf
    • http://kodowemomi.rf.gd/classical_myth_8th_edition_global.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e7e3.bin
08b27e78437f7796d8d37d4fe8355afccd138460024b6ebda3949495581998f1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE7E3 5864 bytes
font_01_sfnt_off0000fbdc.bin
947537a4203368d9f6613c9d28bb60c4e4e8ab75b271694d59b4492a4ddb89ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFBDC 10420 bytes

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