Malicious PDF — malware analysis report

Static analysis result for SHA-256 46b701c904e25532…

MALICIOUS

PDF

70.5 KB Created: 2021-02-11 16:50:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: bddc7562ecd939cd02a12f17fc14b5a4 SHA-1: 3eb519e861260bedcfd9ac13acbc5f6b99d58a8d SHA-256: 46b701c904e255328f8e573e06d00a1360ac1e08ad682d96cedda2e113152246
154 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 routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://yafferge.ru/123?utm_term=jeep+fc+170+van In PDF document text
    • https://xikaxuroloxo.weebly.com/uploads/1/3/1/4/131406092/3658bfcd38095.pdfIn PDF document text
    • https://cdn.sqhk.co/veleviziwew/PYiegvF/ditoserap.pdfIn PDF document text
    • https://cdn.sqhk.co/sururezog/ahjn8if/75040003009.pdfIn PDF document text
    • https://wafulezejo.weebly.com/uploads/1/3/4/7/134748518/4424a.pdfIn PDF document text
    • https://mifimixaxenerut.weebly.com/uploads/1/3/3/9/133999571/9072d301c.pdfIn PDF document text
    • http://pimebujeben.66ghz.com/graduation_sheet_cake_costco.pdfIn PDF document text
    • https://cdn.sqhk.co/bupewazadufa/jZuiexx/kisojoperawiru.pdfIn PDF document text
    • https://cdn.sqhk.co/ganuniwiku/6Stgdjj/change_keyboard_function_keys_windows_7.pdfIn PDF document text
    • https://cdn.sqhk.co/dodufiruw/RBhfjbP/pokemon_card_value_finder.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/wutisigila/watodora.pdfIn PDF document text
    • https://s3.amazonaws.com/watajive/66036120855.pdfIn PDF document text
    • https://s3.amazonaws.com/vuterijoze/42499751634.pdfIn PDF document text
    • https://s3.amazonaws.com/luxelula/malayalam_childrens_songs_free.pdfIn PDF document text
    • http://varoniwarovez.rf.gd/99216463520.pdfIn PDF document text
    • https://s3.amazonaws.com/wanalovum/73431147395.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_off0000d75e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD75E 5028 bytes
SHA-256: 4dd0d16f5e358c27cc447351d92569559318e7699e9790574e8524947d84467c
font_01_sfnt_off0000e8b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8B1 10772 bytes
SHA-256: 439a18a1242ba49f4ef7c87e7ce3c62f22d59e5bed789414f50b0f31580e9446

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