Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd5e17dcb93e9ca1…

MALICIOUS

PDF

72.8 KB Created: 2021-02-14 21:56:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 60d3a40527a30c4f34e56962109e49dc SHA-1: 88efd9d123bca5f27562251ca1421fbf8f3d4f8f SHA-256: cd5e17dcb93e9ca17776b551b81ece8d63b3ae30c8c44c12b661c2732ed423d2
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://druttle.ru/123?utm_term=super+smash+melee+rom PDF link annotation
    • http://nelawetazabuta.66ghz.com/cpct_exam_full_form.pdfIn PDF document text
    • http://nububezobuto.22web.org/best_manual_oil_press_machine.pdfIn PDF document text
    • https://cdn.sqhk.co/baxijaxazixi/SO9giha/tevazaderesazidepoburi.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/tarizirefevifab/animasi_power_point_islami.pdfIn PDF document text
    • http://pepiretivixu.epizy.com/maxurunofon.pdfIn PDF document text
    • https://s3.amazonaws.com/gumagabu/vaaste_song_ringtone_free_male_version.pdfIn PDF document text
    • http://witolav.epizy.com/kejudejekugizox.pdfIn PDF document text
    • https://s3.amazonaws.com/xujitezu/change_din_punjabi_video_song.pdfIn PDF document text
    • https://s3.amazonaws.com/xedewofuretujo/32170876090.pdfIn PDF document text
    • http://pojoxonofed.rf.gd/alistar_jungle_guide_s8.pdfIn PDF document text
    • https://s3.amazonaws.com/saxefi/reading_charts_and_graphs_worksheets_third_grade.pdfIn PDF document text
    • https://s3.amazonaws.com/vavale/itr_1_form_assessment_year_2018-_19.pdfIn PDF document text
    • http://todakule.rf.gd/79419165167.pdfIn PDF document text
    • http://kitukogoxav.epizy.com/65129593392.pdfIn PDF document text
    • http://gozudivigel.epizy.com/48612995848.pdfIn PDF document text
    • http://tuzagexesowojoj.epizy.com/58785510827.pdfIn PDF document text
    • https://s3.amazonaws.com/xumakomowi/73021227546.pdfIn PDF document text
    • https://s3.amazonaws.com/vizegemawokaxe/free_wordpress_templates_for_bloggers.pdfIn PDF document text
    • http://gadunekubajip.rf.gd/53865174680.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_off0000db1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB1F 5160 bytes
SHA-256: b04246274ff36cb6b46be61eba9d3df4a38c2c326274dc58bf23391ee86a0012
font_01_sfnt_off0000ec76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC76 12464 bytes
SHA-256: 23c4ad97e5c25c3762bcea2e2ef40413fc6e4f8274356f0ece13486a0a0e4d07

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