Malicious PDF — malware analysis report

Static analysis result for SHA-256 58b4a45ab46347e7…

MALICIOUS

PDF

78.6 KB Created: 2021-03-19 19:58:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 586b9ea4d588400803b76a80bb950e0a SHA-1: 25ffd506c70783170ee7fcdb7e7b2eff1a6192ad SHA-256: 58b4a45ab46347e7c57882e37251181fc015ee0594db8f268f4901cd72517397
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URL points to a suspicious domain, suggesting the document is designed to redirect users to a potentially harmful website. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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/aws?utm_term=what+does+the+name+bagheera+mean
    • http://raftgjgr.space/spalding_50_inch_polycarbonate_portable_basketball_hoop_system_assembly_instructionsjad81.pdf
    • http://detonic-deutschland.website/39101167621nst7r.pdf
    • http://greatholl.com/fejepoze4k5bi.pdf
    • http://xariketixagat.mypressonline.com/isometric_drawing_problems.pdf
    • http://sokolov.fun/gorilla_diet_in_zoo_saves_boyd836v.pdf
    • http://usejus.club/rofivefagojagenicx0a4.pdf
    • https://cdn-cms.f-static.net/uploads/4474448/normal_604066a3719ff.pdf
    • https://cdn-cms.f-static.net/uploads/4480161/normal_6039df016c94b.pdf
    • http://dokojekiferej.mygamesonline.org/dopunubejira.pdf
    • https://cdn-cms.f-static.net/uploads/4375355/normal_603b1a82213ef.pdf
    • https://static.s123-cdn-static.com/uploads/4369638/normal_5fef1b9e1331a.pdf
    • http://kreativoblako.com/whirlpool_dishwasher_quiet_partner_i_manualdgpi1.pdf
    • http://vowufijetapiko.sportsontheweb.net/photographic_composition_rule_of_thirds.pdf
    • http://minesaxofunawi.getenjoyment.net/77376804799.pdf
    • https://static.s123-cdn-static.com/uploads/4418746/normal_5fdf9159f180e.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/3643f9cc-91ad-4bb4-a51a-fb8dbcc3ddbf/the_elements_of_moral_philosophy_chapter_3.pdf
    • https://uploads.strikinglycdn.com/files/d4e22ff1-2bdc-4431-8038-266c010a5bc4/how_to_make_a_homemade_notebook_out_of_paper.pdf
    • https://uploads.strikinglycdn.com/files/c954f86a-e761-45d3-9875-d3fb6188d733/melomonoxoboxubolo.pdf
    • http://zodiripek.myartsonline.com/bepibamoroxegaj.pdf
    • https://52468903-0e2d-47c5-babb-61e1d305d291.filesusr.com/ugd/32777b_b0d8d082af7642cebf5e6bab9340e6f4.pdf?index=true
    • https://b5526579-b22d-45a0-8251-9885a72cf3eb.filesusr.com/ugd/0cd019_fe887f3482ba4b94971967a31e56526e.pdf?index=true
    • https://uploads.strikinglycdn.com/files/46daa0f3-a758-4ee9-8fc8-42a8312a3ac4/the_penguin_anthology_of_twentieth-century_american_poetry_ebook.pdf
    • https://387a498e-9551-4239-9507-3183ba214552.filesusr.com/ugd/cd403b_1c350dfac8fd457c97b2e1ba3bc8141f.pdf?index=true
    • https://uploads.strikinglycdn.com/files/b767905e-902e-49c7-8316-65deb8ba6371/zovotefarotenu.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f49f.bin
7ef6b22272b6751836abcd37c96fdeb7ba3fe0251b6ecf448c5d222c590d394e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF49F 5360 bytes
font_01_sfnt_off000106b8.bin
0d71cce344ac6b85362194db575b5442668f607f21305b9d0b1fdeb947e60244		 pdf-font-stream PDF embedded font (sfnt) at offset 0x106B8 11484 bytes

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