Malicious PDF — malware analysis report

Static analysis result for SHA-256 fbd15b9fd68d0061…

MALICIOUS

PDF

84.9 KB Created: 2021-04-29 10:42:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: 122d8be13664d57faffa125aa60e2fb3 SHA-1: 8d74aed6ad480e4326feefb8e0d290d1388ac3de SHA-256: fbd15b9fd68d00614a9ce43a1ff4cac50c5ef5352cfa152f5905df5b769fa85b
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a suspicious domain, masquerading as a search result for a common query. ClamAV and ML classifiers have identified this PDF as malicious, likely a phishing or trojan delivery attempt. No scripts were extracted, but the presence of the malicious URL is a strong indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

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://maypoin.ru/strik?utm_term=how+to+add+parent+to+class+dojo PDF link annotation
    • https://cdn.sqhk.co/zejizoguzut/JYghjdD/gumegubonikuniwaxa.pdfIn PDF document text
    • http://sethel.xyz/51094777196t876b.pdfIn PDF document text
    • http://shishkin-seed.xyz/latar_belakang_tun_dr_mahathirk9mbf.pdfIn PDF document text
    • http://belkwigs.com/lugamefegpa5u6.pdfIn PDF document text
    • http://betixisu.22web.org/fidelotolovifix.pdfIn PDF document text
    • https://cdn.sqhk.co/xumesapaxoku/iagfiii/nail_art_brushes_michaels.pdfIn PDF document text
    • http://trackengine.host/zelixufanazosezotakakodaeyq2z.pdfIn PDF document text
    • https://cdn.sqhk.co/sepagumal/dfhaVQM/20420259688.pdfIn PDF document text
    • http://businesshelpservice.com/nezexadysdy.pdfIn PDF document text
    • http://storeyou.store/usps_customs_form_envelopeh4vyh.pdfIn PDF document text
    • http://ig-mediateam.net/how_the_grinch_stole_christmas_soundtrack_lyricsstlvf.pdfIn PDF document text
    • https://cdn.sqhk.co/nokodexuxof/J6wlhaN/485091099.pdfIn PDF document text
    • http://workbykoder.xyz/96431490724mh2q9.pdfIn PDF document text
    • http://kernig.store/dodiguju83.pdfIn PDF document text
    • https://cdn.sqhk.co/bowazeduz/gehkAgd/extra_equip_slots_dst.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://fodiwivovekuvut.epizy.com/que_estudia_la_genetica.pdfIn PDF document text
    • https://s3.amazonaws.com/rerinago/princeton_review_sat_practice_test_1_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/vuxagixil/defiance_2050_guide_deutsch.pdfIn PDF document text
    • http://fonimegalidoxu.epizy.com/79618754958.pdfIn PDF document text
    • https://s3.amazonaws.com/xarojapi/61138400657.pdfIn PDF document text
    • https://s3.amazonaws.com/wekibik/goal_setting_sheets_for_high_school_students.pdfIn PDF document text
    • http://nelodetasa.rf.gd/rokaxaxufutopupuruxuv.pdfIn PDF document text
    • http://xorabaza.rf.gd/envelope_mockup_templates_psd.pdfIn PDF document text
    • https://s3.amazonaws.com/lomiwexuva/beginners_guide_to_running_2_miles.pdfIn PDF document text
    • https://s3.amazonaws.com/jepavilutabilel/sawikain_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/tarajix/xabopeb.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_off0001007e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1007E 4936 bytes
SHA-256: 3c97839773f1abb18736a044c92308a3f89dae6f50ff87419e42ed2e4d54efd8
font_01_sfnt_off00011165.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11165 11112 bytes
SHA-256: dfaeef72cea9378e5ee3bc91780d98a11c777a7a36d4446906a400c1d383302f
font_02_sfnt_off00013777.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13777 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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