Malicious PDF — malware analysis report

Static analysis result for SHA-256 1bb1a1275065e16a…

MALICIOUS

PDF

73.6 KB Created: 2021-05-17 13:55:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: b76edbc7519fae650c1727d71fd4a439 SHA-1: d63dd6c027ec51b7ea3d2f67fde34a69efe2132a SHA-256: 1bb1a1275065e16a50c16cc5c9bf350b0e33d27e6b753e08caa4b17da613fc87
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains an embedded URL that redirects to a malicious domain, likely as part of a phishing or scam campaign. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to trick users into visiting a compromised site.

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://soxebez.ru/strik?utm_term=how+to+make+cleaner+for+swiffer+wet+jet PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4416810/normal_6052eaa86c0da.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422877/normal_60209f719d745.pdfIn PDF document text
    • http://galoomer.online/penjabaran_hak_asasi_manusia_dalam_uud_19455ee3c.pdfIn PDF document text
    • http://drilltech.info/24846561389rhd60.pdfIn PDF document text
    • http://card2card.live/23962397337q7m6w.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393641/normal_605d88945e067.pdfIn PDF document text
    • http://spainwow.pro/nuziwezaxeduwudebukelora83yvb.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/f71ca478-f870-4ac4-8d90-3cd49eb71e4d/in_your_darkest_days_quotes.pdfIn PDF document text
    • https://s3.amazonaws.com/degisapemifa/adobe_sign_salesforce_templates.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/42cd6002-3484-4371-b6ca-8a2b40a21b62/autocad_dwg_viewer_mac_os_x.pdfIn PDF document text
    • https://s3.amazonaws.com/fadadedezeker/nelukopujiwegaj.pdfIn PDF document text
    • https://s3.amazonaws.com/wovitiku/37044379775.pdfIn PDF document text
    • https://s3.amazonaws.com/fakuguvil/petajijosusu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e7451a2-0d04-421c-979e-83ef824a0538/mupofigenatevafififuvi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/835bc9c3-1cad-4840-998b-67c6f5d7d0c1/internal_auditor_course_nz.pdfIn PDF document text
    • https://s3.amazonaws.com/wizedumi/74926750378.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3d6c5d56-b51a-4d56-aa6b-557d28f00efc/beneficios_do_aafro_para_a_pele.pdfIn PDF document text
    • https://s3.amazonaws.com/dowadotiju/how_many_calories_in_a_slice_of_margherita_pizza.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d754.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD754 5220 bytes
SHA-256: 79ecd1947ba3fcd2696cd9e5711128d8bc59896d3e1462e942bf1209c031b7ff
font_01_sfnt_off0000e907.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE907 1800 bytes
SHA-256: a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620
font_02_sfnt_off0000f194.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF194 11716 bytes
SHA-256: 59bda3f295fbc1e5681938a4c0ee3f2f3f29346d2551f3a33219d1cd225dd6e0

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