Malicious PDF — malware analysis report

Static analysis result for SHA-256 d26a08093a4aac2b…

MALICIOUS

PDF

87.0 KB Created: 2021-01-24 03:08:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: e6695f7ac52ca4e314b28abb488a1a9e SHA-1: f54de0ac320b4b4121c1319220b71eeb90ffaba5 SHA-256: d26a08093a4aac2be5b27d15d5e903875ab9db15aba587a39606381ca9ffa467
96 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a machine learning classifier and ClamAV, indicating malicious intent. It contains an embedded URL pointing to 'maypoin.ru', which is likely used to host a malicious payload or phishing page. The document body, though heavily obfuscated, contains text related to 'car games 3d apkpure', suggesting a lure to trick users into visiting the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9983

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://maypoin.ru/aws?utm_term=car+games+3d++apkpure PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4476757/normal_5fe94784501c3.pdfIn PDF document text
    • http://teposiliza.22web.org/42540592981.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417990/normal_600192e8be9e0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4423442/normal_5fc61492b4f2a.pdfIn PDF document text
    • http://sokokusulamubi.22web.org/target_flannel_sheets_australia.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461229/normal_600c9f2756456.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369520/normal_5fea224d9ea63.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500679/normal_6000a26370751.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409254/normal_5fcbd44c1ce12.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390641/normal_5fc95c6d9f088.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4527902/normal_5ffbdb4a633ab.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455370/normal_5ff68cc88e8dc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366351/normal_5fcbdaf83bc4f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478133/normal_5ff6af550de28.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419846/normal_5fdf064435d13.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448744/normal_5fe9eb816a763.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380219/normal_5ff6bee30404a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://jasigobup.epizy.com/nuxobubavonaxofolawib.pdfIn PDF document text
    • http://budunasetixap.epizy.com/autodesk_viewer_supported_file_formats.pdfIn PDF document text
    • http://dapobepopid.rf.gd/25514429845.pdfIn PDF document text
    • http://lepamiruketujuf.epizy.com/suxeb.pdfIn PDF document text
    • http://fonajuwowo.epizy.com/inquisitive_rogue_5e_guide.pdfIn PDF document text
    • http://witeguxatuzidaj.epizy.com/understanding_half-_lives_and_radioactive_decay_worksheet.pdfIn PDF document text
    • http://supegawezokex.epizy.com/latest_couple_pic.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
font_00_sfnt_off0000f820.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF820 4436 bytes
SHA-256: 86f9dff6bdb572bc126bca44da8cf570af95012e0866c1153d78f642d127a6f0
font_01_sfnt_off000107be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107BE 5036 bytes
SHA-256: bfc896ea8a0c71c0aa73158b012d5fe255bb4ae3d6091dd243eb9b055a862201
font_02_sfnt_off000118db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118DB 11452 bytes
SHA-256: 2489f00b797674a2afbcc8e0d4bc5e72d9ea6c010e42add4001322502fb055bf
font_03_sfnt_off00014014.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14014 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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