Malicious PDF — malware analysis report

Static analysis result for SHA-256 da3915ea7e160ab6…

MALICIOUS

PDF

72.4 KB Created: 2021-02-26 06:04:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: a78417e01c939a8d9a98d7c36d6e1c7d SHA-1: 60f8c7b89ff96970758fd1907b012cef1e5266b1 SHA-256: da3915ea7e160ab6bc6baf7218ae209da5f66a2bac0b85851a5d5eb0124c229e
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, indicating a phishing or malware distribution attempt. The document body, though heavily obfuscated, appears to be a lure related to a battery charger. The presence of multiple unknown URLs further supports the malicious intent, likely to download a second-stage payload.

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://crophysi.ru/123?utm_term=how+to+use+a+schumacher+battery+charger In PDF document text
    • http://bestplacefor.rest/nedikojisuweycxqg.pdfIn PDF document text
    • http://fotonagosuslugi-01.space/motemebupuj9p4ai.pdfIn PDF document text
    • http://pixunune.sportsontheweb.net/our_god_reigns_chords_key_of_b.pdfIn PDF document text
    • http://jedomagisuw.getenjoyment.net/nenusofotam.pdfIn PDF document text
    • http://pixunune.sportsontheweb.net/74244354687.pdfIn PDF document text
    • http://goproonly.com/kukirax8woj.pdfIn PDF document text
    • http://grantmedica.ru/427385566458ug1q.pdfIn PDF document text
    • http://itali-big.space/geometry_dash_2.2_downloadisuxg.pdfIn PDF document text
    • http://daddytestit.xyz/infosys_agile_certification_questions_and_answersnvqc5.pdfIn PDF document text
    • http://keksik24.ru/4_pics_1_word_level_220_answer_3_letters4uako.pdfIn PDF document text
    • http://tiktokcopyrighthelpteam.com/aldehyde_allgemeine_summenformelcze46.pdfIn PDF document text
    • http://wapividazofar.scienceontheweb.net/lababosuxupegazatukotid.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
    • https://s3.amazonaws.com/lomogas/fokenafogutevuwexabilawij.pdfIn PDF document text
    • https://s3.amazonaws.com/pidufozu/new_york_times_innovation_report_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/wiwuxot/natelonozeregubura.pdfIn PDF document text
    • http://namutogenasokab.epizy.com/midsummer_festival_wow_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/seriposuj/vegipevezimi.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_off0000d165.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD165 5204 bytes
SHA-256: 6dc1175ac5c8d75762a7dc98a4257b25ac51c1ef77e336fd2668261f85034a00
font_01_sfnt_off0000e32f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE32F 10328 bytes
SHA-256: 77010fef5be012d6ffabfc158afe85776121b7a998f470153b45ed7ca66adb5b
font_02_sfnt_off0001062d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1062D 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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