Malicious PDF — malware analysis report

Static analysis result for SHA-256 f30bb2c3bb0d2279…

MALICIOUS

PDF

74.4 KB Created: 2021-06-07 01:01:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 7e421f6ba38c1086fedacd7aa6e62b50 SHA-1: a9843ae85853bd66d5fa3aa77c53181ff90ee9ab SHA-256: f30bb2c3bb0d2279591db0307136da1e4399dab59c296161bc68c8de2457e0ea
96 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The embedded URL leads to a domain associated with phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and the presence of an external URI suggest it's designed to redirect users to a malicious site, likely for credential harvesting or further malware delivery.

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://laborke.ru/pbw?utm_term=how+to+download+music+on+spotify+not+premium PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4454561/normal_5fe82853d2d5b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402707/normal_6057b1828d129.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406213/normal_604f895c38ac4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466689/normal_606534568c05e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/13f36331-4ccc-4184-865e-7afd72386c5c/24749177870.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fa540613-f261-4a6c-8814-8c4fa3e8e036/29659960617.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bd4703ec-b17e-470a-a837-7704c4111eb1/what_does_sticky_fingers_mean.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a81aed8f-1280-4aae-88c9-68c7676826f9/hp_ipibl-lb_drivers_windows_xp.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/24676980-6218-46ad-907e-c6b67be5b291/noputise.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6d18f865-703c-4970-9fa1-d3afc0cfdf34/xezogujofelesew.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eaa19c4a-9d07-4767-a763-9ae53f123804/hp_deskjet_3054a_printer_ink.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a0ad7e3b-ee16-4bd6-89e6-db01ffc9415c/baburijilumugebowanija.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cede2c7d-a540-4278-9452-b04d3f310d02/is_freak_the_mighty_movie_on_netflix.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1ecb160b-396c-41db-9c13-fc9f0dc76af9/digital_marketing_executive_jobs_salary.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/feeaf920-4337-469b-9847-c6d350f42558/what_happens_at_the_end_of_the_spectacular_now.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/34b7f3b6-806d-4674-a8af-1756af927b90/xidipiwofosopimapo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c2a0c70b-a45d-4a47-938e-6d63324a1f0c/how_does_a_serial_killers_brain_work.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cdbd5333-8e4f-4e71-872a-7f2b1fc00dbf/is_all_souls_day_a_public_holiday.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/72f351a8-ab11-4cb2-a7cc-e3664f40e344/how_to_use_a_george_foreman_electric_grill.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_off0000e5a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5A4 5456 bytes
SHA-256: 226c3036114099ce0d1371a947605b858322a7c045addb77fc530ad988720474
font_01_sfnt_off0000f83c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF83C 10860 bytes
SHA-256: 1a4c20b650175228118bccabf991a3df907a27799cc90a33078f04b153696b6a

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