Malicious PDF — malware analysis report

Static analysis result for SHA-256 d303458d297a8d7e…

MALICIOUS

PDF

83.0 KB Created: 2021-02-22 21:30:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: ee97f2d06b3b5ed311b12c3fef8efdbd SHA-1: 9f181a04341a61c53cd5687f759ef5d8d385c6b5 SHA-256: d303458d297a8d7e079f196dfbd398ce09da2ad0fe7c5587ef25457181716dba
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-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://jottigo.ru/wix?keyword=the+chaser+short+story+meaning PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4388833/normal_6011cd5fa18f2.pdfIn PDF document text
    • http://gexedufez.22web.org/bullet_bandi_dj_naa_song.pdfIn PDF document text
    • http://hugertely.xyz/tosavukznb8.pdfIn PDF document text
    • http://alsamcctv.com/116312731723gjix.pdfIn PDF document text
    • http://help-copyrightviolationhelpcenter.com/sigowarowe7n3pv.pdfIn PDF document text
    • http://online-bestshop.xyz/sisudagah3syl.pdfIn PDF document text
    • http://pshcomonhere.xyz/nurizogusaguvi4eug3.pdfIn PDF document text
    • http://dmgameplan.com/differentiation_strategy_meaning_in_urdu8on0j.pdfIn PDF document text
    • http://899themes-demo.ru/lidikatopovapisozim3e1uo.pdfIn PDF document text
    • http://uablog.website/manegakabotupomomitati82e6u.pdfIn PDF document text
    • http://raisinshub.club/estonia_travel_guide_blogz9n5u.pdfIn PDF document text
    • http://1pokypki.website/32157004321r73gw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/kasuwevovog/fefataruburanaralemubux.pdfIn PDF document text
    • https://s3.amazonaws.com/zobuwubedak/moneyskill_answers_module_10.pdfIn PDF document text
    • https://s3.amazonaws.com/wazotojemov/catalogo_virtual_eudora.pdfIn PDF document text
    • https://s3.amazonaws.com/jexijer/sotefafude.pdfIn PDF document text
    • https://s3.amazonaws.com/vexeliku/roxegozovakemilomipu.pdfIn PDF document text
    • http://wokamanegiwive.rf.gd/ropetizutarovanema.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fcfa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCFA 5020 bytes
SHA-256: 4944e33384dc620ba153c8ea70a74fb6f4bcd30cad8af5badf1a84ad429093fa
font_01_sfnt_off00010de6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DE6 10240 bytes
SHA-256: e6b4720e1179e87925317e8f6739c9ca419e4cdb6c202c1b2a6300db1e0ebb7d
font_02_sfnt_off000130f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x130F3 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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