Malicious PDF — malware analysis report

Static analysis result for SHA-256 67c6cbe725dd41f8…

MALICIOUS

PDF

79.1 KB Created: 2021-03-03 01:03:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: a012e03c9cb9af663c9dd94673adf536 SHA-1: 5bf652a37279d60d000529f1d376f173f1df66ae SHA-256: 67c6cbe725dd41f8d53cf01dafb6ace7621ed118d913c34fd64db9aba29e619c
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, specifically as a phishing trojan. It contains an embedded URL pointing to a suspicious domain, which is likely part of the phishing lure. The document body, though heavily obfuscated, contains keywords related to the URL, suggesting an attempt to trick the user into visiting the malicious site.

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://lozipotod.ru/strik?utm_term=stihl+24+av+specs PDF link annotation
    • http://vogolimipogusoz.mypressonline.com/human_genetic_testing_pros_and_cons.pdfIn PDF document text
    • http://orbitan.fun/how_to_connect_my_bose_headphones_to_my_iphone_11nhdkf.pdfIn PDF document text
    • http://mebelintera.ru/john_maxwell_teamxvepr.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468274/normal_602eaeb6b5e80.pdfIn PDF document text
    • http://xijulefabogi.getenjoyment.net/dell_optiplex_9020_small_form_factor_i7.pdfIn PDF document text
    • https://cdn.sqhk.co/jigugabopu/haYgfjd/space_runners_book_1.pdfIn PDF document text
    • http://ig-copyrightnoticehelp.com/james_patterson_books_in_2020rz07n.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
    • http://dizakopalelur.epizy.com/beeswax_sheets_near_me.pdfIn PDF document text
    • https://s3.amazonaws.com/begijufadi/selalu.pdfIn PDF document text
    • http://ferovugosewago.epizy.com/13266433249.pdfIn PDF document text
    • http://joxumokuri.epizy.com/51584189991.pdfIn PDF document text
    • https://s3.amazonaws.com/xutomoxu/2428071867.pdfIn PDF document text
    • http://wajiletum.epizy.com/66497772624.pdfIn PDF document text
    • https://s3.amazonaws.com/tokafanawa/24632760351.pdfIn PDF document text
    • https://s3.amazonaws.com/resisuna/10157368891.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_off0000ea11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA11 4880 bytes
SHA-256: e2ecbb0bb66454f95194d74e510090eedf048f7758ca93de80113ab7d74c768f
font_01_sfnt_off0000fab6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAB6 10916 bytes
SHA-256: c0f84d4039a635dc844b2d9e8e3993325a32e0641925aace4a8aedf7522d7ec0
font_02_sfnt_off00011fc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11FC2 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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