Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9e7f22f08e7d99b…

MALICIOUS

PDF

78.1 KB Created: 2021-03-04 23:17:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 6db55b96fe92dc9e0934f5f3c3a0ae18 SHA-1: 2681bbe9eac0bdb412138c28450d2caef0dba629 SHA-256: d9e7f22f08e7d99b9250a3eb0ee364afa20afeb8f71afae49fbd7ef031d93301
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 high risk score. It contains an embedded URL pointing to 'xajibur.ru', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, contains keywords related to a movie, suggesting a lure to entice users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://xajibur.ru/award?keyword=roald+dahl+the+witches+movie+2021 PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4411923/normal_6004a33fc0303.pdfIn PDF document text
    • http://lobabinuladeri.medianewsonline.com/vuridokufesefamalu.pdfIn PDF document text
    • https://cdn.sqhk.co/govazilose/kihzKgj/jitowutoxewexem.pdfIn PDF document text
    • https://cdn.sqhk.co/tatidukigag/gbMzoJl/blue_moon_ice_cream_port_austin.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475380/normal_5fcbfeb3ea24d.pdfIn PDF document text
    • https://cdn.sqhk.co/rekubapapup/fjjghjI/buyout_offer_template.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454990/normal_5fee4761be307.pdfIn PDF document text
    • http://warixedivukinat.mygamesonline.org/33577064076.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485589/normal_5fdafcfe22427.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://wumugajus.onlinewebshop.net/64681122480.pdfIn PDF document text
    • http://satawakerexe.atwebpages.com/golibufisap.pdfIn PDF document text
    • https://s3.amazonaws.com/dazinibonofobi/is_kaplan_harder_than_actual_mcat.pdfIn PDF document text
    • https://s3.amazonaws.com/niporofez/waduzudavategi.pdfIn PDF document text
    • https://s3.amazonaws.com/zedilegol/15455690097.pdfIn PDF document text
    • https://s3.amazonaws.com/mefadedosuw/xafijuvazetomivaf.pdfIn PDF document text
    • https://s3.amazonaws.com/tolivajupeku/tamil_new_movies_2018_in_tamilrockers.pdfIn PDF document text
    • http://ginowane.onlinewebshop.net/finance_manager_interview_questions_and_answers_uk.pdfIn PDF document text
    • https://s3.amazonaws.com/nowonovege/39677975323.pdfIn PDF document text
    • http://zorijefugixor.atwebpages.com/vugexomovanedawi.pdfIn PDF document text
    • https://s3.amazonaws.com/sikuva/dogetijaxopujavi.pdfIn PDF document text
    • http://ladurabazidema.onlinewebshop.net/what_degree_to_get_for_interior_design.pdfIn PDF document text
    • https://s3.amazonaws.com/jubiferekaka/splashtop_android_lag.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_off0000e682.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE682 5248 bytes
SHA-256: b3dfdbd2dcebbbfb99a4975b7885f78e5a4425abdb34b3800fab825168a4540b
font_01_sfnt_off0000f87c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF87C 10468 bytes
SHA-256: 7f97ce8d0229b80900df3850c5f9108d9b8ea23d8ccf8b2a318072ccd785ed03
font_02_sfnt_off00011c49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C49 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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