Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ae565bfffad94f0…

MALICIOUS

PDF

72.8 KB Created: 2021-01-30 06:55:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: ae14f86d53b6444c94815e6419ba41ab SHA-1: 2cc56a63940a277be6401665fbd468195eee68e7 SHA-256: 6ae565bfffad94f0a885a597948dd6e09921a5caa213aa88e6c375ec92268a3d
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to host malicious content or redirect the user. The document body, though heavily obfuscated, contains text related to 'mines prices' and application metadata, suggesting a lure document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://baarspo.ru/123?utm_term=bonne+terre+mines+prices PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4473403/normal_5fe93364ec317.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501360/normal_5fecf04952aa9.pdfIn PDF document text
    • https://cdn.sqhk.co/sirepajaku/hnXciEy/photo_editor_app_for_pc_online.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388841/normal_5ff56a24bd35c.pdfIn PDF document text
    • https://cdn.sqhk.co/dosojegomugu/epyAyVM/98467713336.pdfIn PDF document text
    • https://cdn.sqhk.co/mepapogivoma/bibiiag/tesurunukoxoduzubo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4497688/normal_5fec6923910a2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501770/normal_5fd22f86ca025.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365552/normal_5ff52b717e337.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408984/normal_5fe5dcd8cbb1e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4394073/normal_5fde891e2c56a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408707/normal_5fea467e726dd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zaxalamel.rf.gd/aura_carlos_fuentes_english.pdfIn PDF document text
    • http://moniladipawi.epizy.com/59833408297.pdfIn PDF document text
    • https://s3.amazonaws.com/diwitapezu/astrology_software_tamil_free.pdfIn PDF document text
    • https://s3.amazonaws.com/fogibi/tanarifogivoj.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_off0000df7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF7E 4884 bytes
SHA-256: 3f65ca1bcc8e52513009e02fc7d1062b016b310211aa080047c4da91bbe52d93
font_01_sfnt_off0000f00a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF00A 11352 bytes
SHA-256: f5f2613a95874da4383ca34c24d66e8dcb970f2b16926de75e76fc5352af0956

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