Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab13072190bffd5f…

MALICIOUS

PDF

73.0 KB Created: 2021-03-28 08:41:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 69b6952122acbcf5c07a4a3d4a82bb43 SHA-1: ea0852805ea87601f8df6f788b2c2c5cf4eb0deb SHA-256: ab13072190bffd5f4aa9ac577c81aa7fd8af3709b0a400aa2967604d1da911ca
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 phishing or trojan payload. It contains an embedded URI pointing to a suspicious domain, likely intended to trick the user into visiting it. The document body is heavily obfuscated and appears to be generated by wkhtmltopdf, suggesting it's not meant for direct user reading but rather to host the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://soxebez.ru/award?keyword=angiotensina+1+y+2+pdf PDF link annotation
    • https://cdn.sqhk.co/fokatekox/egeiiRA/sure_goal_goal_predictions_today.pdfIn PDF document text
    • https://lajizifoposu.weebly.com/uploads/1/3/5/9/135958207/16dc38eb4.pdfIn PDF document text
    • http://wufutawolemipa.22web.org/discounted_payback_period_definition.pdfIn PDF document text
    • https://zikixitifo.weebly.com/uploads/1/3/4/8/134897390/1dea11bc7ee62.pdfIn PDF document text
    • http://zesozidim.iblogger.org/tratamiento_para_rinitis_alergica.pdfIn PDF document text
    • https://cdn.sqhk.co/tokebamojos/BKBVhjE/my_city_dre_island_lyrics.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/lowebemuwojiso/computer_basics_absolute_beginners_guide_windows_10.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/37fa2a81-95c6-4993-8b28-088bafdf7c93/10449397083.pdfIn PDF document text
    • https://s3.amazonaws.com/babetafaperaxov/60258465717.pdfIn PDF document text
    • http://tifafepomuko.epizy.com/zodozu.pdfIn PDF document text
    • https://s3.amazonaws.com/nuselufuzo/scarborough_fair_sheet.pdfIn PDF document text
    • http://xuvagakinev.rf.gd/articles_of_organization_llc_florida_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/13924b3f-5b36-485d-bdf5-d71de079d9ec/61470563753.pdfIn PDF document text
    • http://novosumagib.epizy.com/interior_design_portfolio_layout_templates.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/26c56bd8-8fe2-403d-a99c-d40fa57d2c14/bhagavad_gita_chapter_1_summary.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwisi/birthday_photos_and_videos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/305bd17a-3287-4ae7-b880-d0eeb0f12c3c/tuwemozolifugoroxat.pdfIn PDF document text
    • http://xugejaf.rf.gd/soundlogic_light_up_rechargeable_wireless_bluetooth_speaker_manual.pdfIn PDF document text
    • http://xafojoluti.epizy.com/mebevovonedemudurob.pdfIn PDF document text
    • http://fotoburiwolof.rf.gd/samsung_galaxy_emulator_android_studio.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_off0000dee0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEE0 5356 bytes
SHA-256: 6d2db1b443d29fa23b526f1f35f6d6260a73148f85f2463471d021e55bc0385e
font_01_sfnt_off0000f14a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF14A 10940 bytes
SHA-256: 29647b3a5df7433537a2af39f12f83f2929c0becc6abcf7d981088d89c8a1a6c

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