Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b2dcbbc18d8745b…

MALICIOUS

PDF

69.4 KB Created: 2020-12-14 21:06:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: c42c5e8178bcf870bd49817178964798 SHA-1: 5a90a7f2df90de134458f13a17a6739878a7c376 SHA-256: 0b2dcbbc18d8745b7ad0f0b7002a25ab1b98ec720fc43325421784d17e963814
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-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://traffset.ru/strik?utm_term=hp+color+laserjet+cp4525+manual PDF link annotation
    • https://vilukenuxe.weebly.com/uploads/1/3/2/8/132814007/wizefulelunibif.pdfIn PDF document text
    • https://walisisatar.weebly.com/uploads/1/3/4/5/134576301/6155833.pdfIn PDF document text
    • https://famonusowofem.weebly.com/uploads/1/3/4/3/134349488/xowofivozi-xepanopat.pdfIn PDF document text
    • https://nubonikajifubi.weebly.com/uploads/1/3/4/8/134882340/9477361.pdfIn PDF document text
    • https://vomalokigalexa.weebly.com/uploads/1/3/4/3/134329787/lugulejow.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc0c6a4a87939686407af5f/t/5fc1f56764571256548234df/1606546793826/probability_tree_diagrams_worksheet.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc14640df132613bbc04837/t/5fc536163570fb44d1ac0937/1606759960152/95778486713.pdfIn PDF document text
    • https://s3.amazonaws.com/tulosa/the_biology_of_belief_book_download.pdfIn PDF document text
    • https://s3.amazonaws.com/vawoginele/40770005051.pdfIn PDF document text
    • https://s3.amazonaws.com/lebaxa/gibirasuzovozelokinosezod.pdfIn PDF document text
    • https://s3.amazonaws.com/vipuxafol/identify_adjectives_verbs_and_adverbs_worksheet.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2da458139af037651e5bd/t/5fc67ea73f75b16643b53ddb/1606844071638/slide_away_lyrics_oasis_chords.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc3715e3dfdd95b60e53d86/t/5fc646d49b1ed03538b35738/1606829780837/bucket_list_ideas_for_college_students.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0ea21e2fce462bc8c0024/t/5fc251a918e72e5fdb234866/1606570410086/ld_debate_flow_template_excel.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_off0000d2a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2A8 5460 bytes
SHA-256: 406588911bd076c44062c18e528296cb6cb6cab284c04e5b635287e6ed9a8cab
font_01_sfnt_off0000e532.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE532 10376 bytes
SHA-256: b45308a99d7d59d24999a2e6bd26381b6436170bab9aff4a586c979f11054288

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