Malicious PDF — malware analysis report

Static analysis result for SHA-256 aac966d9c0941095…

MALICIOUS

PDF

77.9 KB Created: 2021-02-14 06:31:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: bf18d320ff21e542886cc5d790798a94 SHA-1: da18717931336bf631698b3c014a5939cf6c0032 SHA-256: aac966d9c0941095c6b6a23005f5bcc61fdba1b0024097a01199cfeae5822b74
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://seumenha.ru/123?utm_term=buy+manual+grass+trimmer PDF link annotation
    • http://kosodidaxelo.22web.org/login_page_template_for_android_app.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499629/normal_600ddc661723a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421959/normal_6001942cb5026.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458839/normal_6009cd4f4e9c1.pdfIn PDF document text
    • http://fusobilel.iblogger.org/myanmar_business_visa_on_arrival_application_form.pdfIn PDF document text
    • http://rukawagamijo.iblogger.org/tuvozewanok.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482191/normal_5fd93a5a201e4.pdfIn PDF document text
    • http://helplnstagramcontact6088757.com/ketogenic_diet_definitionrf0cd.pdfIn PDF document text
    • http://fujozed.22web.org/rigewomumilujuvozi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370768/normal_601f4266dfe02.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/sigobija/cloudy_bay_sauvignon_blanc_2016_tech_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/dusined/bloons_tower_defense_4_expansion.pdfIn PDF document text
    • https://s3.amazonaws.com/dazinibonofobi/registration_of_enduring_power_of_attorney_forms.pdfIn PDF document text
    • https://s3.amazonaws.com/nijosinizo/4253723100.pdfIn PDF document text
    • https://s3.amazonaws.com/pukiza/wosatelagedixiwejutok.pdfIn PDF document text
    • https://s3.amazonaws.com/jaloto/5306274255.pdfIn PDF document text
    • https://s3.amazonaws.com/xumakomowi/condense_file_size_mac.pdfIn PDF document text
    • https://s3.amazonaws.com/veraxawewib/circles_arc_length_and_sector_area_worksheet.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ddff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDFF 5156 bytes
SHA-256: 8231dcf8209217f0ce690a67d5e7f66eb548871cedb89e911219f649878df031
font_01_sfnt_off0000ef79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF79 10836 bytes
SHA-256: 6cfe21da1ed20680af202e733bad83ca15cf4185a029be35221ff3704930b374
font_02_sfnt_off0001148c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1148C 16164 bytes
SHA-256: 4bd16c8abd39118228c1571b0005d4eb3b3e943e572fd92a2a80cfcb7b749349

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