Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae5dc064a09b5121…

MALICIOUS

PDF

94.9 KB Created: 2021-03-19 20:55:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 68f87d51ae2c1a86ca8a5e293726b350 SHA-1: 239ca2966d8302a700d7538a6a118725a69180bd SHA-256: ae5dc064a09b5121d2477b40e0888812a7d54568cd12684b77a36227c5a90337
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 0.9992

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://dugedepap.ru/123?utm_term=fishing+monthly+reports+sydney PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366639/normal_603b8c55da5c6.pdfIn PDF document text
    • http://pokezokebawi.mygamesonline.org/42218059333.pdfIn PDF document text
    • http://rarubife.mygamesonline.org/67615897659.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378383/normal_5fe6a1927cbd5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446170/normal_5fedfd0945982.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392195/normal_5fe934ba595b8.pdfIn PDF document text
    • http://vetebozo.mypressonline.com/advantages_of_social_media_in_tourism.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445737/normal_6039f1a1d9702.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417137/normal_6054b632d04d6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366308/normal_6026bb83f357b.pdfIn PDF document text
    • http://palupalukagu.mygamesonline.org/72141949022.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/xufaxoferugod/seritij.pdfIn PDF document text
    • https://s3.amazonaws.com/numegubowalonan/jumbled_words_questions_and_answers.pdfIn PDF document text
    • http://sidepojedava.myartsonline.com/1066892336.pdfIn PDF document text
    • http://lukafimagog.atwebpages.com/it_book_chapter_3_summary.pdfIn PDF document text
    • https://s3.amazonaws.com/vunizi/bomb_dash_apk.pdfIn PDF document text
    • http://lapetagalelan.myartsonline.com/bacteriophage_download.pdfIn PDF document text
    • http://padusij.onlinewebshop.net/do_disney_workers_get_benefits.pdfIn PDF document text
    • https://s3.amazonaws.com/mesotodimus/47436802096.pdfIn PDF document text
    • https://s3.amazonaws.com/gotijejaj/25520347386.pdfIn PDF document text
    • http://bogalibamadom.myartsonline.com/sar_of_antimalarial_drugs.pdfIn PDF document text
    • https://s3.amazonaws.com/guwutivupudutu/the_biology_project_karyotyping_activity_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/zatasipezeg/86306253142.pdfIn PDF document text
    • https://s3.amazonaws.com/fosagobomap/ronotegolotolano.pdfIn PDF document text
    • https://s3.amazonaws.com/luxelula/the_adventures_of_robinson_crusoe_book.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_off0001383a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1383A 5220 bytes
SHA-256: 4390a792f19a39940cebccec8286523eb7350174b7e60c408eeadb3aee55573b
font_01_sfnt_off000149df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x149DF 10676 bytes
SHA-256: a7cdfc17a18375c04670ca4187173854ecf54a5baa443797e3776ca41882ca8e

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