Malicious PDF — malware analysis report

Static analysis result for SHA-256 265bc9732b6f0639…

MALICIOUS

PDF

72.2 KB Created: 2021-03-22 20:08:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 61fc597e5edb09c98e51a3c33f1a3117 SHA-1: 5a1290a152715878d259fea6efd6a20de503e55b SHA-256: 265bc9732b6f063977c8d4c8d4cd4190ce620adcf8a8e09381b9be2d5ec1cca8
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://dafemum.ru/award?keyword=sage+accpac+tutorial+pdf PDF link annotation
    • http://nafarami.medianewsonline.com/suvizuxafugakudoxive.pdfIn PDF document text
    • https://cdn.sqhk.co/nobixapo/Aieeihg/mimepogen.pdfIn PDF document text
    • http://mipuwuse.22web.org/87846836005.pdfIn PDF document text
    • http://bosemefawixuwov.mypressonline.com/letijapulo.pdfIn PDF document text
    • https://cdn.sqhk.co/nanagajog/haii5hd/22026786625.pdfIn PDF document text
    • https://cdn.sqhk.co/fadanade/dFhgsii/zoxowusogi.pdfIn PDF document text
    • http://dumubemajizukov.medianewsonline.com/how_to_use_ly_adverbs.pdfIn PDF document text
    • http://raxejudesezix.scienceontheweb.net/87344404329.pdfIn PDF document text
    • https://cdn.sqhk.co/nilesatu/5ljiijW/94119793293.pdfIn PDF document text
    • https://cdn.sqhk.co/menigopas/UliajFa/mapidimijex.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rodedewezijore.atwebpages.com/is_ableton_or_fl_studio_easier_to_use.pdfIn PDF document text
    • https://s3.amazonaws.com/bipovoromoj/john_deere_mower_parts_for_sale.pdfIn PDF document text
    • https://s3.amazonaws.com/bidurudilidujug/ludana.pdfIn PDF document text
    • https://s3.amazonaws.com/bepukuba/duzev.pdfIn PDF document text
    • https://s3.amazonaws.com/xoxaneral/bullfrog_spa_service_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/zibenoroduzuw/63870096186.pdfIn PDF document text
    • https://s3.amazonaws.com/xabalaru/fenusiwunukidagubegizu.pdfIn PDF document text
    • https://s3.amazonaws.com/woxotopapozokev/acronis_11._5_bootable_usb.pdfIn PDF document text
    • http://zekarevuwo.epizy.com/sage_50_accounting_2018_update.pdfIn PDF document text
    • http://dogufisojorosef.epizy.com/importance_of_communication_channels.pdfIn PDF document text
    • http://jopumogezev.epizy.com/motor_vehicle_sensors_and_actuators.pdfIn PDF document text
    • http://wivovazu.epizy.com/types_of_accounting_information_system.pdfIn PDF document text
    • https://s3.amazonaws.com/webipejonavuv/bisozitasumer.pdfIn PDF document text
    • http://lilosanuzup.rf.gd/why_accounting_has_been_called_the_universal_language_of_business.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_off0000d85d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD85D 5248 bytes
SHA-256: 9661ea6938368743ea535f8fd66e4f55d04b401f12e3de778b300627b110fff2
font_01_sfnt_off0000ea48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA48 12272 bytes
SHA-256: c47378fda167424f033cfbbb876dd248cd0c5ea63c1eacb2638f097af81c6084