Malicious PDF — malware analysis report

Static analysis result for SHA-256 79fa091f39d1a362…

MALICIOUS

PDF

82.0 KB Created: 2021-03-24 16:46:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 55bfb267a607f08c49c9242ec606463e SHA-1: 8d5388ef3c2cf0a6a6f37c5bdaf7da311030331d SHA-256: 79fa091f39d1a362a286c15a23bcca2f3f73b393c0c6dc3b48c614290e2b28b2
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 0.9998

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/wix?keyword=liger+pictures+hercules PDF link annotation
    • http://testrun.ru/sowulowepugito2d8e.pdfIn PDF document text
    • http://matteset-spon.space/project_management_frameworkxiuyd.pdfIn PDF document text
    • https://cdn.sqhk.co/tibapopedeka/ctwjhYr/suwinejijigapupisaderewuz.pdfIn PDF document text
    • https://cdn.sqhk.co/livulopo/KKVRojb/20896171851.pdfIn PDF document text
    • http://peuly.xyz/the_whipping_boyypnas.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kikumofesokir.rf.gd/roy_f_baumeister_willpower.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f70f6dde-d41f-4fd5-a63e-e6ff4599b59e/nipabuvixeresuwetasesus.pdfIn PDF document text
    • https://s3.amazonaws.com/xajowu/eragon_s_guide_to_alagasia.pdfIn PDF document text
    • https://s3.amazonaws.com/wajibile/bose_wave_music_system_cd_player.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b2b82c92-e690-4496-a223-1e3b5e4b1a3c/kenmore_bread_maker_user_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxutedi/vozonosudetiwopize.pdfIn PDF document text
    • https://s3.amazonaws.com/gumagabu/tasobewixivafoxexo.pdfIn PDF document text
    • http://xepalufozakot.epizy.com/52382582458.pdfIn PDF document text
    • https://s3.amazonaws.com/bezorito/98867772607.pdfIn PDF document text
    • https://s3.amazonaws.com/sazomo/what_is_a_daphnia_magna.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_off0000e83a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE83A 4924 bytes
SHA-256: 63a36463e2763f047b23b38503a80b8a79b74243858216f63829bfd738f3a990
font_01_sfnt_off0000f8fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8FD 4728 bytes
SHA-256: 89c0ae63a8c402c57234ca039416b48737efae8ba710281f879d1ff49dc02a45
font_02_sfnt_off000109e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109E0 14824 bytes
SHA-256: 93fb7822c227062b1ae78ced8b8f4c9a2ca3711363fb943360d60af0f214fa42