Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd3ac078ebe5feaf…

MALICIOUS

PDF

75.7 KB Created: 2021-03-15 16:30:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 09ef8ab392e933be977b3c9416bc052e SHA-1: 9ee7b50a38325a38f990ead4aeea688a96ba7aab SHA-256: dd3ac078ebe5feaf99bf532a2f2a727b51916aad95a0226498deb117cb4c36b2
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 0.9996

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://lozipotod.ru/wix?keyword=american+pageant+ap+15th+edition+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4452400/normal_5ff3e73a99621.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423428/normal_602bd928d4263.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452386/normal_601f31de9d3aa.pdfIn PDF document text
    • http://dkblogin-de.best/silasjeeri.pdfIn PDF document text
    • http://bcpzonasegura10beta-viabcp.com/tokyo_ghoul_season_2_episode_2t6yd8.pdfIn PDF document text
    • http://gatorama.site/719025596652nbf3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392210/normal_600014563f5c4.pdfIn PDF document text
    • http://hushseo.online/which_roku_supports_screen_mirroringyex2a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427501/normal_603d4b340d80a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414679/normal_5ff2be0bf348b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386366/normal_5fe331d258218.pdfIn PDF document text
    • http://propovar.ru/xadidxa37f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387419/normal_60023fe111b56.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/9aeeffa7-fc88-44c6-9974-2b85f998d733/0-12_months_developmental_milestones.pdfIn PDF document text
    • http://gurabagoderes.atwebpages.com/vtech_cordless_dect_6.0_phone_4-pack_black_and_silver.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6282c4e2-277d-4171-b35f-4de777206fc3/how_to_read_stock_market_news.pdfIn PDF document text
    • http://mixezized.myartsonline.com/banking_current_affairs_2020_june_banking_awareness.pdfIn PDF document text
    • https://cb47f074-0476-4434-b381-5672a365cab8.filesusr.com/ugd/c46c8a_5a2163deb85b4c57b2bb9588f2de0087.pdf?index=trueIn PDF document text
    • https://05e27880-d5e1-4d3d-8428-ba943e9300bc.filesusr.com/ugd/b56239_ab1d8f715a3c42a3a2d2d88088a72d0c.pdf?index=trueIn PDF document text
    • http://tebaputazaxuva.myartsonline.com/bulk_up_program.pdfIn PDF document text
    • https://18e99e0c-7034-4a8c-9069-267580a295b8.filesusr.com/ugd/b337f5_4d95d03f6b174607b3c7518a0f6108cb.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/8484e547-f663-44da-b26d-c9f3d38f62af/85251432636.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_off0000e906.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE906 5524 bytes
SHA-256: 4facaa8cba417f019477bc3b48dd5f192f0bf245372559a17b024a06562c0ed3
font_01_sfnt_off0000fbb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBB2 11104 bytes
SHA-256: c49e958d8899fcbd96e3402f021697f6a965b920140e2d3c5cf720df606fc6e9