Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8429931ea8628a9…

MALICIOUS

PDF

74.5 KB Created: 2021-02-16 00:40:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: af2ca8dccb3005ad2c1c91173475f886 SHA-1: 0bb599fd51721be3bfe22dc02da8e811b52bccdc SHA-256: d8429931ea8628a921e2ea4f6489eb37e61508f1b0cc6ef91a1fb02163e8477e
104 Risk Score

Malware Insights

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

The file is identified as malicious by a ClamAV detection and an ML classifier. It contains an embedded URI pointing to 'https://bologen.ru/123?utm_term=canon+eos+rebel+xti+owners+manual', which is likely a phishing or malware distribution link. The document body, though truncated and obfuscated, suggests a lure related to a camera manual, combined with heuristic findings indicating a download button, further supporting a phishing or malicious download attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://bologen.ru/123?utm_term=canon+eos+rebel+xti+owners+manual PDF link annotation
    • http://wavikedinufefe.iblogger.org/sazawarojexataxut.pdfIn PDF document text
    • http://jinokonur.22web.org/nopulikodape.pdfIn PDF document text
    • http://mgacessoria.online/writing_a_news_report_sampleijd0q.pdfIn PDF document text
    • http://shop-kid-toys.online/27690496051xzz7a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://silapopo.epizy.com/kinewuse.pdfIn PDF document text
    • https://s3.amazonaws.com/tiduro/walufiturabogorowud.pdfIn PDF document text
    • https://s3.amazonaws.com/bugutaj/xejusodem.pdfIn PDF document text
    • https://s3.amazonaws.com/tejuvonixag/espghan_celiac_disease_guidelines_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/napisakaluja/chelsea_vs_bayern_munich_2012_formation.pdfIn PDF document text
    • http://pelewonaxiguso.epizy.com/java_jdk_programming_software.pdfIn PDF document text
    • http://pasufok.rf.gd/jirezogokosu.pdfIn PDF document text
    • https://s3.amazonaws.com/sogovekevi/fuvuvesesadiwelanober.pdfIn PDF document text
    • https://s3.amazonaws.com/luramamelolem/37446293296.pdfIn PDF document text
    • https://s3.amazonaws.com/kakef/ccna_2_practice_final_exam_answers_2017.pdfIn PDF document text
    • http://nunowezowijoper.rf.gd/alphabetisation_vers_l_emploi.pdfIn PDF document text
    • https://s3.amazonaws.com/boduxatavepe/bitlocker_drive_encryption_windows_7_free.pdfIn PDF document text
    • https://s3.amazonaws.com/tomaxade/plafond_credit_impot_formation_chef_d_entreprise.pdfIn PDF document text
    • http://sefeluxezilire.epizy.com/asymmetric_information_journal.pdfIn PDF document text
    • https://s3.amazonaws.com/xidazeze/biomedical_technician_interview_questions.pdfIn PDF document text
    • https://s3.amazonaws.com/zarelusipofox/lapowo.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_off0000e935.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE935 5036 bytes
SHA-256: 85a02ea22b85c2b51f73e4e288b2218741e7c4f11089b5b0f2e6844d2453c017
font_01_sfnt_off0000fa4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA4D 10200 bytes
SHA-256: 8fa1a59852d55dbea2b6d1b21fca5ac269976aa29ca0f82b9018f794629ff829