Malicious PDF — malware analysis report

Static analysis result for SHA-256 6bce1b2925018cdc…

MALICIOUS

PDF

87.2 KB Created: 2021-03-09 05:00:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 3f7538fa5b13338212d84910c79031ef SHA-1: eceea2674066d950c329720cec509563f005fdad SHA-256: 6bce1b2925018cdcf3a4874855e55a9e7c7aa09af210a308e956c2b3b4ad09d7
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a specific detection name indicating phishing and trojan characteristics. The embedded URL, https://dugedepap.ru/123?utm_term=banff+tourism+guide, is a primary indicator of malicious intent, likely serving as a lure for further compromise. Although no scripts were explicitly extracted, the PDF structure and heuristic firings suggest it's designed to exploit vulnerabilities or trick users into navigating to the malicious URL.

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://dugedepap.ru/123?utm_term=banff+tourism+guide PDF link annotation
    • https://cdn.sqhk.co/nunagike/QiaA3ij/dimoxorozujosanuvowilumu.pdfIn PDF document text
    • https://cdn.sqhk.co/kavuzoda/3jdhjPr/benijapokaduwobadizaduxo.pdfIn PDF document text
    • http://memubalejegezur.66ghz.com/boilsoft_video_splitter_7._02._2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369330/normal_603b48af1a09f.pdfIn PDF document text
    • http://leyloften.online/basketball_stars_2_unblocked_66ovc1c.pdfIn PDF document text
    • https://cdn.sqhk.co/tevunufoba/h1DCyFN/sazetolezajateperedik.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491169/normal_5feb6f37ee9d1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368235/normal_5ff4a96a815c3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4530323/normal_600773a079627.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489994/normal_5ffa1668ba15c.pdfIn PDF document text
    • http://rigoditibalun.mywebcommunity.org/dupapidakomelax.pdfIn PDF document text
    • http://digosige.mywebcommunity.org/tavixoxerusefib.pdfIn PDF document text
    • http://genusadnlo.space/its_kind_of_a_funny_story_streaming_sub_eng4d170.pdfIn PDF document text
    • http://copyrighthelpcentral.com/6374308573847blk.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/1d0c826d-b8f7-431c-a5f2-a8215e7b7350/31939878887.pdfIn PDF document text
    • http://vubuzixefixa.onlinewebshop.net/84021210837.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f4af6a26-7c14-4623-a84b-f46931dce2d0/how_asia_works_book_review.pdfIn PDF document text
    • http://wapemufabaloni.rf.gd/zosonilevakusoze.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/29f873de-621f-4f2f-9bc5-436aae521e05/96969818403.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_off00011758.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11758 5244 bytes
SHA-256: fff9709eabd2a95352de747407d399b6c756696127f2dce940f99021b9f8e6a2
font_01_sfnt_off0001291a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1291A 11592 bytes
SHA-256: e0e291ee7b050e182c5cbff853d9bb06c977d8efd7d2570352620dc67a263008

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