Malicious PDF — malware analysis report

Static analysis result for SHA-256 d650238d6bb1656c…

MALICIOUS

PDF

86.6 KB Created: 2021-04-07 23:41:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 03190f8bb5c6ba43ea8f8d89569b8788 SHA-1: c6d610d9ade0157cc348fe9f288194bf9caa3c4b SHA-256: d650238d6bb1656cd8a7b4a99f8ccc1ae39d56296909c1e8a76a6fce84e3054b
96 Risk Score

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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://crophysi.ru/wix?keyword=millas+a+kilometros+converter PDF link annotation
    • http://funseeds.site/colorimetric_determination_of_aspirin_lab_reportgq2fa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388424/normal_5fd793c660b9a.pdfIn PDF document text
    • http://autoupgrade.website/los_secretos_de_la_mente_millonaria_audiolibro_completo_en_espaoln6i9n.pdfIn PDF document text
    • http://kellys.space/zoluvmc8t2.pdfIn PDF document text
    • http://mivabeb.iblogger.org/ladofegabowixa.pdfIn PDF document text
    • http://yachts-4-sale.com/decal_application_instructions_svgygvcx.pdfIn PDF document text
    • http://sizikigaraju.22web.org/94692336300.pdfIn PDF document text
    • http://rixorevu.getenjoyment.net/logitech_z_5500_subwoofer_replacement.pdfIn PDF document text
    • http://megidexabaror.mywebcommunity.org/makalah_daulah_abbasiyah.pdfIn PDF document text
    • http://yeswins.space/708340294icsnd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413236/normal_60199149ad934.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487187/normal_5fd9926bb0a1d.pdfIn PDF document text
    • http://grandov.pro/hopalong_cassidy_episode_guide30z5o.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bitujiduruv.myartsonline.com/78421567960.pdfIn PDF document text
    • https://s3.amazonaws.com/jidosatikim/video_editor_software_windows_10.pdfIn PDF document text
    • https://s3.amazonaws.com/xapijifas/tadulurepigovobisim.pdfIn PDF document text
    • https://s3.amazonaws.com/wixamupelinere/51383179767.pdfIn PDF document text
    • https://s3.amazonaws.com/jasipefulaxiduj/zuwazobipuzep.pdfIn PDF document text
    • https://s3.amazonaws.com/dazawojob/40655852741.pdfIn PDF document text
    • http://parepakikil.epizy.com/trauma_focused_cbt_worksheets_for_adults.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_off00011490.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11490 5076 bytes
SHA-256: 604d0e3ce8162b9eb58f71c9076c958c64385a99156b966d55dab8c6273bbc05
font_01_sfnt_off000125cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x125CD 11628 bytes
SHA-256: 0943e3780e038663df45e8f1d395257f755c505734cdb6c2797786f374ed5f25