Malicious PDF — malware analysis report

Static analysis result for SHA-256 44970ad4a9c39d96…

MALICIOUS

PDF

92.7 KB Created: 2021-03-04 08:13:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: d2c7afc4e53702b479398b914ea7645e SHA-1: f93891ec4e3225b25087357e571c40af301ff56e SHA-256: 44970ad4a9c39d96c942b490239972264bd75837bef6268f3b0f276bb85037c1
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'botokaw.ru', which is likely a phishing or malware distribution site. The document body, though heavily obfuscated, suggests a lure related to downloading religious content 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://botokaw.ru/strik?utm_term=download+lagu+mp3+asmaul+husna+99+nama+allah PDF link annotation
    • http://mobile-media.moscow/how_to_clean_your_dyson_animal_filterxcxq1.pdfIn PDF document text
    • http://xedoponoteje.22web.org/xinesopetovafugaduvusaf.pdfIn PDF document text
    • http://maxist.ru/employee_handbook_texas_template_freejfvz2.pdfIn PDF document text
    • http://wgathering.org/section_9.1_manipulating_dna_study_guide_answersabunn.pdfIn PDF document text
    • http://yandex-delivery.cc/mimimivalojikq6bz.pdfIn PDF document text
    • http://wimixolumow.iblogger.org/71731512160.pdfIn PDF document text
    • http://classkaod.ru/bed_plan_cad_block_free3xcaf.pdfIn PDF document text
    • http://hookup157.fun/sirukasizoras1w9wk.pdfIn PDF document text
    • http://acupofjacob.com/global_energy_architecture_performance_index_report_2017vzuwl.pdfIn PDF document text
    • http://forexgeeks.net/jonisepupigirnu3ux.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://rikonobawo.epizy.com/how_to_make_line_art_in_procreate.pdfIn PDF document text
    • https://s3.amazonaws.com/fodose/70135742260.pdfIn PDF document text
    • https://s3.amazonaws.com/midizaxopazeji/fujilurefimap.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwotarotavuz/ratetogifej.pdfIn PDF document text
    • https://s3.amazonaws.com/pasawe/cambodia_visa_application_form_south_africa.pdfIn PDF document text
    • http://kelawezup.rf.gd/car_racing_game_windows_7.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off000132cc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x132CC 22572 bytes
SHA-256: 0052f93689ef3d75dc46cfd4fb287b54d42d2f66720bbe35f43d7a386b5887b9
font_00_sfnt_off0000eeea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEEA 3104 bytes
SHA-256: 7935a9011d1ddf925e4c615f0d4c7ebc5c36e944a8283dfae3a9b58fd21d210d
font_01_sfnt_off0000f9fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9FB 5688 bytes
SHA-256: ff0c9f6725372c12dd097116f81461e689bace9ea2a417f7b0247f990d1d5efe
font_02_sfnt_off00010d45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D45 10944 bytes
SHA-256: 6633312442fc208fbaddd91147afcdb3cf53ad7d2ca1cf8d673f507fb8d1727d
font_04_sfnt_off00015ae9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15AE9 2300 bytes
SHA-256: 992aacf76c65a5032a5fd30fe7c5a5b300bc7f1687e2d3fefc74faa70ede0608

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