Malicious PDF — malware analysis report

Static analysis result for SHA-256 ded66846b98f8759…

MALICIOUS

PDF

277.0 KB Created: 2021-03-17 22:37:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 7bed4c5ab3f2cb7143a82dd16a175d1a SHA-1: 4ece2adc3d47131aa2db296cda00509b4b80dce7 SHA-256: ded66846b98f87596bfbd998a88cd5eff6c47119f3ab475734daa2cec804e15c
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. It contains an embedded URL that redirects to a suspicious domain, indicating a phishing attempt. Although no scripts were explicitly extracted, the PDF structure and heuristic firings strongly suggest it's designed to lure users to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9874

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/wix?keyword=%25E6%25BD%2598%25E6%25B1%2589%25E5%25B9%25B4+%25E6%25B1%25AA%25E7%25B2%25BE%25E5%258D%25AB+%25E6%25AF%259B%25E6%25B3%25BD%25E4%25B8%259C PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4377679/normal_5fc6f13402a3b.pdfIn PDF document text
    • http://panuxidoku.22web.org/john_deere_214_attachments_for_sale.pdfIn PDF document text
    • http://lomigakorak.getenjoyment.net/dicionario_alemao_portugues_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415331/normal_601f0fa38736d.pdfIn PDF document text
    • http://jidapuxedepu.medianewsonline.com/japanese_mythology_books_barnes_and_noble.pdfIn PDF document text
    • http://mitedujonajezed.scienceontheweb.net/cooling_tower_working_principle.pdfIn PDF document text
    • http://tapozifokun.mywebcommunity.org/wetuxotonoru.pdfIn PDF document text
    • http://dusejetiwogodad.getenjoyment.net/can_you_make_money_flipping_houses_reddit.pdfIn PDF document text
    • http://zasufigonibat.getenjoyment.net/sotavebevamo.pdfIn PDF document text
    • http://vuvulusigi.scienceontheweb.net/54639009201.pdfIn PDF document text
    • http://totaxusozavu.sportsontheweb.net/volaluzenogidematupif.pdfIn PDF document text
    • http://zonerokemub.getenjoyment.net/blue_line_library_schedule.pdfIn PDF document text
    • http://xawamiwupajev.mygamesonline.org/41606265216.pdfIn PDF document text
    • http://mokugujumekov.sportsontheweb.net/balun_canan_gratis.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pojoviraxerojo.myartsonline.com/biblia_cristiana_dios_habla_hoy_gratis.pdfIn PDF document text
    • http://sitowofe.rf.gd/wedegudadam.pdfIn PDF document text
    • http://divojeniro.epizy.com/chain_rule_formula.pdfIn PDF document text
    • http://fufudaloxola.onlinewebshop.net/libro_de_las_28_creencias_adventistas.pdfIn PDF document text
    • http://xaxelajifamukas.rf.gd/vadefolafamolupijutef.pdfIn PDF document text
    • http://bavalididot.epizy.com/python_projects_for_beginners_free_download.pdfIn PDF document text
    • http://vokaraw.epizy.com/45396770959.pdfIn PDF document text
    • http://xifedesekelogu.epizy.com/fancy_pants_adventure_world_3_android.pdfIn PDF document text
    • http://vufigenetusanu.epizy.com/vuremiwesidizojapo.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0001052a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1052A 262728 bytes
SHA-256: 8f5e2baf8b7aa49584980524dce30468ad2942c1711156d3cf909227dadbffa1
font_01_sfnt_off0004008c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4008C 5220 bytes
SHA-256: c082452e23427dd173186cbbd7b1fb23b3fc435646677243cfedabde664ea3c5
font_02_sfnt_off00041265.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x41265 4068 bytes
SHA-256: 8e72149c7ce3095aec9cecc072f8a515df207c00aebf785f12c4fc197e954f4b
font_03_sfnt_off00042045.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42045 10100 bytes
SHA-256: 691131561c0cf236624ffaae7701d59fbdd2ebf0c715598aa292639f11f71702

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