Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c815a542d0242e2…

MALICIOUS

PDF

77.6 KB Created: 2021-03-15 03:01:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 5fb96d5e5abcfd2167b695541ff1c5bb SHA-1: 2daadd934ff090c64acac4ddff4fd1af39367313 SHA-256: 0c815a542d0242e251c516e0fb6873711ece89c47b048596b8cbe6ebb3877684
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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-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://soxebez.ru/wix?keyword=astronomy+worksheets+college PDF link annotation
    • https://cdn.sqhk.co/nujizeres/hjiigtQ/16693966492.pdfIn PDF document text
    • http://docita.fun/bhagmati_telugu_movie_free_hddkv9t.pdfIn PDF document text
    • https://cdn.sqhk.co/bapisolel/zmkjefK/rock_and_roll_ringtones_for_iphone.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500878/normal_5fe0ed3009f38.pdfIn PDF document text
    • http://ratebekanolaja.22web.org/how_to_learn_a_piano_piece_in_a_week.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393485/normal_60478d020b59e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469852/normal_6024b2dcc5814.pdfIn PDF document text
    • http://mebelintera.ru/45368115miuzq.pdfIn PDF document text
    • http://menedowu.iblogger.org/lagu_man_ana_versi_indonesia_merdu.pdfIn PDF document text
    • http://sazefakopek.iblogger.org/definition_of_education_by_different_philosophers.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/zalisujezajaje/distinguish_between_correlation_and_causation_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/41650700-e583-452e-9073-718ab75054e9/tufugazibus.pdfIn PDF document text
    • http://puredaw.rf.gd/christ_college_guildford_sixth_form.pdfIn PDF document text
    • https://s3.amazonaws.com/gurafoga/riwuza.pdfIn PDF document text
    • http://vuxotuketut.rf.gd/schindler_s_list_movie_in_tamil.pdfIn PDF document text
    • https://s3.amazonaws.com/satulibaren/how_to_read_first_aid_step_1.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c00ed68e-b298-41a1-bc9f-2ed84b6c5641/sesezi.pdfIn PDF document text
    • https://s3.amazonaws.com/rakabexozu/baldurs_gate_2_enhanced_edition_android_review.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/36840a89-6968-4e87-8401-19b125758d51/dipuvogagexogotib.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e796.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE796 5252 bytes
SHA-256: 7e615986a987aa49a56f2c615b41239f13643120acd7460cdcc5f88c2efe00e7
font_01_sfnt_off0000f95d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF95D 1800 bytes
SHA-256: 51ebeec29509b87aa858d500e37ac8853184703d07d1f913ce36d8e1dc7764c0
font_02_sfnt_off000101eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101EB 11036 bytes
SHA-256: aca4f95b9e9f379121b21b53a6987ee88f015cd2ecec3b75223609f6648f84b1

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