Malicious PDF — malware analysis report

Static analysis result for SHA-256 af00b0834f1c20ce…

MALICIOUS

PDF

84.1 KB Created: 2021-03-10 06:37:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 416214ea25b773f4ac3cb8530befdc79 SHA-1: 0cb3976df042d18276c93f6bd84af015d111e2f3 SHA-256: af00b0834f1c20ce47e8c1edc1a43abca1db0262088ac75d3b3c6bec096edf3b
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were extracted, the presence of a malicious URL within the document body, combined with heuristic detections, suggests an attempt to trick the user into visiting a harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://pelibifir.ru/strik?utm_term=komik+manga+one+punch+man+season+2+saitama+vs+garou PDF link annotation
    • http://tiktokcopyrighthelpteam.com/77578674537up60n.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387233/normal_6007120e1a43f.pdfIn PDF document text
    • http://portkamesto.site/jideralopbcad.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465151/normal_5fd6217ab754e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368230/normal_5ff693b3022f1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369160/normal_5fff797b2a7e8.pdfIn PDF document text
    • http://runiruvuzez.iblogger.org/champion_standby_generators_for_sale.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4493891/normal_5fe70cec2ded9.pdfIn PDF document text
    • http://gejedesoni.getenjoyment.net/51547719463.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461232/normal_60315f00803c3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365612/normal_5ffb19fbe9dc5.pdfIn PDF document text
    • http://mojuwimonimo.22web.org/lafewanudatemik.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4443574/normal_600736d029c0c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371787/normal_603bb6c1d28b2.pdfIn PDF document text
    • http://skywonder.space/939890360596jqyi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4498345/normal_60236d4baa617.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://jerasopel.epizy.com/35137434735.pdfIn PDF document text
    • http://domebiwek.myartsonline.com/afd_wahlprogramm_sachsen_2020.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cb8a731f-1c22-4eee-a377-7ee1774dab72/toshiba_satellite_l755_charging_port.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5622615a-d714-465b-aa95-ac1a46030b98/vuralafevopefimeriwef.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2556b84e-9ceb-451c-8c7a-9e6956fac19d/how_to_convert_kindle_books_to_mac.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/787a466a-6724-4d48-b36d-689a544dcf9c/examples_of_diagnostic_assessment_in_early_childhood_education.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

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e2fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2FD 5424 bytes
SHA-256: 29aceddb8b04fb5eebf40d6d86f6af818ad86493be490dde450ba6a829d906eb
font_01_sfnt_off0000f54b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF54B 11800 bytes
SHA-256: 33ea349549ed6dfad8c04a17935cb6bcbff9439f7f902e76b80a8b2b49dab45e
font_02_sfnt_off00011c33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C33 16312 bytes
SHA-256: 39e80e6735a925a53533f0f7f52c40dc96534388761604c99d3a6096ccf52619
font_03_sfnt_off000131d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x131D2 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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