Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ad10801acb57fe3…

MALICIOUS

PDF

70.2 KB Created: 2021-02-15 13:47:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 68a848ec48d11d5ac110a19278e99947 SHA-1: 5bc980753efa83061c4d4469f177232de7a6aecd SHA-256: 2ad10801acb57fe3ec2076303c5c8d85a326c3191007d40751ecef5d56a28f88
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 embedded URL and the ClamAV detection strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and heuristics point towards a phishing lure disguised as helpful information.

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://yafferge.ru/aws?utm_term=how+to+set+analog+time+in+casio+illuminator+watch In PDF document text
    • https://jagunafine.weebly.com/uploads/1/3/4/3/134363358/nomotivusos_gedukew.pdfIn PDF document text
    • https://fulojexerewo.weebly.com/uploads/1/3/5/3/135345176/ebd4201aad3d52a.pdfIn PDF document text
    • https://cdn.sqhk.co/rujiwujik/iggCjik/jojilevevofu.pdfIn PDF document text
    • https://cdn.sqhk.co/mepetiruzi/jf4jiDh/rugiwekoli.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418786/normal_6007fb110c8ae.pdfIn PDF document text
    • https://sirukume.weebly.com/uploads/1/3/0/8/130814715/4f7c8df7.pdfIn PDF document text
    • https://cdn.sqhk.co/mojaribi/j5ighcK/hill_climb_racing_2_apk_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/vetipewalu/0jakwhh/rusijug.pdfIn PDF document text
    • https://xadadoroz.weebly.com/uploads/1/3/6/0/136024884/e32d752a.pdfIn PDF document text
    • https://cdn.sqhk.co/kuxaroposa/jemEIZT/projectm_music_visualizer_tv_apk.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/ximupuv/bowelano.pdfIn PDF document text
    • https://s3.amazonaws.com/sulasatevirexo/85935610943.pdfIn PDF document text
    • https://s3.amazonaws.com/begijufadi/describing_a_place_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/gisujubolidine/create_invitations_templates.pdfIn PDF document text
    • http://nuwagodejutisef.epizy.com/kuxemukit.pdfIn PDF document text
    • https://s3.amazonaws.com/kiwopusafize/dried_bean_curd_sheet_recipes.pdfIn PDF document text
    • https://s3.amazonaws.com/tobojelusiwi/81706799648.pdfIn PDF document text
    • http://potovoz.rf.gd/schengen_visa_germany_form.pdfIn PDF document text
    • https://s3.amazonaws.com/xefezesebusu/heart_pathology_mcq.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d73e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD73E 5264 bytes
SHA-256: 142cd3ec46038f7600673765127a81bef575e92335a4fb69096b2acce23979ca
font_01_sfnt_off0000e907.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE907 10000 bytes
SHA-256: 31dd0ed3f4e813012a18146124450ebecea47e7be0e758775d59915319b58069

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