Malicious PDF — malware analysis report

Static analysis result for SHA-256 36cdf8ae059cc3c3…

MALICIOUS

PDF

80.5 KB Created: 2021-05-06 04:57:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 11154efee86f00c97bc979beb2e5929f SHA-1: e5eecd5c07b718dae7f599f621254d3f109623ce SHA-256: 36cdf8ae059cc3c301d1a565631567a5620756951b85e08ca7838ca1f3f5cfd3
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains an embedded URL that redirects to a suspicious domain, likely intended for phishing or malware distribution. ClamAV detection as 'Pdf.Phishing.Trojan' further supports malicious intent. The document body, though heavily obfuscated, appears to be a lure related to camera equipment, suggesting a targeted phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9964

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://fokemale.ru/strik?utm_term=canon+rebel+t5+lens+cap PDF link annotation
    • https://cdn.sqhk.co/bewewojiwo/NX9hggd/21392062834.pdfIn PDF document text
    • https://cdn.sqhk.co/gixejefi/QjiG8PN/jukirox.pdfIn PDF document text
    • https://cdn.sqhk.co/lagolipumepi/hckQNgG/63981334513.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490129/normal_60419ef63ca17.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369331/normal_600dc081b8037.pdfIn PDF document text
    • https://cdn.sqhk.co/pujapipiwat/hjugee8/fuvop.pdfIn PDF document text
    • https://cdn.sqhk.co/zuzipogowita/aCEVhau/romantic_song_ringtone_download_mp3_female_version.pdfIn PDF document text
    • https://cdn.sqhk.co/xagaxubibiz/dJgjAZY/best_animated_wallpapers_for_android.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421630/normal_5fe9075c2c267.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409630/normal_5fefadf112c9d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462036/normal_603fbaa9d148d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445879/normal_5fdc341d9d74d.pdfIn PDF document text
    • https://cdn.sqhk.co/tezofugowura/mhhQp4a/how_to_use_smart_switch_mobile_transfer.pdfIn PDF document text
    • https://cdn.sqhk.co/sajatanugeg/iqgghid/16353446809.pdfIn PDF document text
    • https://cdn.sqhk.co/neviragar/hiZWFjb/85540454915.pdfIn PDF document text
    • https://cdn.sqhk.co/dikapagoloza/gehixnT/zonum.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418575/normal_601fb2abac9b5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/84fc6bce-3e08-4a28-9f56-7c4a6762522b/78135816017.pdfIn PDF document text
    • https://s3.amazonaws.com/kizugokofo/paradise_lost_book_11.pdfIn PDF document text
    • https://s3.amazonaws.com/ximupuv/lesefagadixez.pdfIn PDF document text
    • https://s3.amazonaws.com/figidireki/vupekemaluvi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b883b36d-9d25-4322-ba10-192b593983fd/who_is_marsha_linehan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/33abf210-42cb-4e0d-92d4-297febe41d58/70638044651.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf3a9e83-be2e-407f-8c3b-357793872b08/gemufa.pdfIn PDF document text
    • https://s3.amazonaws.com/mejifavo/kijeguvaturigeniza.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8aa18d56-96b6-436a-a624-cb26a3948cf4/dewalt_10_inch_sliding_miter_saw_cordless.pdfIn PDF document text
    • https://s3.amazonaws.com/gavobawum/vumofivolexis.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_off0000faec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAEC 5096 bytes
SHA-256: e81ec1691530b979d08b823771f56eac447ece75cee35f810bc305c51353cbfb
font_01_sfnt_off00010c4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C4A 12312 bytes
SHA-256: 171d1c05e56079f35778b6d1e1d534541130f7cfbd9642a40e028b55e3e99357

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