Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d905706264fa78c…

MALICIOUS

PDF

89.9 KB Created: 2021-04-18 06:58:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 3b4317811fdf5de7ec204dc623207a2a SHA-1: 50a1c56f4f406bdab07679552ead0ad9a79f9485 SHA-256: 7d905706264fa78c34c5f2991701a378267acd3870f2b59b663f79e5fa870f3a
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9996

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://vilenefex.ru/strik?utm_term=nutone+central+vacuum+hose+repair PDF link annotation
    • http://matemepujibad.scienceontheweb.net/status_quo_definicion.pdfIn PDF document text
    • https://cdn.sqhk.co/tipefimex/UzV8O1h/easy_birthday_cake_recipes_for_mom.pdfIn PDF document text
    • https://cdn.sqhk.co/kagaxavog/hiCifij/pi_music_player_pro_apk.pdfIn PDF document text
    • http://copriyghtconfirmed.com/vitisetinosukevawuemm3s.pdfIn PDF document text
    • http://lnstagramverifiedbadge-media.com/75167330970tmvtt.pdfIn PDF document text
    • http://1xbets-regs.site/92445558357l079x.pdfIn PDF document text
    • https://cdn.sqhk.co/fekoguwiwu/gjhdE8m/diamond_diaries_saga_level_390.pdfIn PDF document text
    • https://cdn.sqhk.co/boremagu/fMLhgTI/lakowuwo.pdfIn PDF document text
    • http://uscreditmonitoring.info/kendo_grid_template_if_condition2r4yc.pdfIn PDF document text
    • http://zakewabo.scienceontheweb.net/75672739018.pdfIn PDF document text
    • https://cdn.sqhk.co/salijuvam/dxAgi9k/33108761746.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/zatasipezeg/facebook_lite_messenger_9apps.pdfIn PDF document text
    • https://s3.amazonaws.com/xuzakob/46889353512.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a4e1cd1d-4164-48a1-b6f1-5030df349f66/how_to_get_keurig_out_of_descale_mode.pdfIn PDF document text
    • https://s3.amazonaws.com/wamatasamegu/97071937180.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5b12e920-0b93-43f5-bd08-3a0afe227284/xosib.pdfIn PDF document text
    • https://s3.amazonaws.com/fuvidokibet/lasaserogokin.pdfIn PDF document text
    • https://s3.amazonaws.com/ziwuvijevo/gimokeke.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b1138d02-c0a0-436a-aeaa-6625255ce01f/tokugigikeraxese.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f9ed01b-9f67-4bc4-9530-a2e1480cc15d/76176493675.pdfIn PDF document text
    • https://s3.amazonaws.com/moduluzuxikari/zombie_shooter_games_for_pc.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_off00011f94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11F94 5200 bytes
SHA-256: b6159a876dae53a3b055457cede82416fd123a6a5ff9a539cacfd1a89ddad285
font_01_sfnt_off00013122.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13122 11452 bytes
SHA-256: 9dca3b2b29083533eae2b0196a32dc098afb78fadbdf96835985c7186e403920

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