Malicious PDF — malware analysis report

Static analysis result for SHA-256 7526991370d6c4fc…

MALICIOUS

PDF

79.9 KB Created: 2021-05-26 04:45:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 96aea2a8735939fe9bfba6deb22104d9 SHA-1: 52e3249d934f59865946feeb36cfd8817a709ae4 SHA-256: 7526991370d6c4fcf542bcd39b72fdf4b7a63ba0e07273b24bfc34d2ce3e9d2c
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 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://xezojetit.ru/strik?utm_term=how+to+set+up+ge+ultrapro+optima+hd+antenna PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4446942/normal_5fcdf6c3211c0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467273/normal_5ffc76f715c57.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464878/normal_5ffbc682569bd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459180/normal_60386a8d1754d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490365/normal_604d4d29348ad.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379960/normal_6044cd59aa26a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472495/normal_603196efdf9c4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377924/normal_6009f67082df4.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/fasudikek/19563862033.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9187c5a4-69dd-46f4-b16c-2ea73b3ae974/how_do_i_access_my_verizon_cloud_online.pdfIn PDF document text
    • https://s3.amazonaws.com/nijosinizo/pufoxizeziroka.pdfIn PDF document text
    • https://s3.amazonaws.com/regufojalojaza/list_of_igt_slot_machines.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f7bbd85b-0b5a-421c-b8f2-0b332e5b252f/17849313782.pdfIn PDF document text
    • https://s3.amazonaws.com/litunux/motorola_xtl_2500_programming_cable.pdfIn PDF document text
    • https://s3.amazonaws.com/muvazi/biceps_strain.pdfIn PDF document text
    • https://s3.amazonaws.com/dutimajizowa/36677908545.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/44477a38-d1f7-4c92-b16a-d5e786462548/jorikurijukojizifuvesiput.pdfIn PDF document text
    • https://s3.amazonaws.com/sonutopexaramuf/norma_aisi_316.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b2b0775d-a936-43e5-a67e-e9831490166c/samsung_dryer_model_dv45h7000ew_a2_reset.pdfIn PDF document text
    • https://s3.amazonaws.com/dotivaf/82667203588.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_off0000fb6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB6D 5428 bytes
SHA-256: 9aac6a95893b598ab1fa03d085a65937da5ff9d34f413bdf71c3e268b4f6eb67
font_01_sfnt_off00010dc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DC4 10652 bytes
SHA-256: 4db281de01c5530bd9cce16ec9ea20735999175b8ee7609a2189866aba0e68a4

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