Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0188f5de020a8d6…

MALICIOUS

PDF

82.1 KB Created: 2021-01-23 08:17:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 2e6503a7c94707ceec3094e10c505d85 SHA-1: 907988386f61a9c66990354ff9977148e3c6f91b SHA-256: e0188f5de020a8d6cd74dcceb48dcf23059880231793b35fb8fe60f0194a403e
96 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to host a phishing page or download further malware. The document body, though heavily obfuscated, suggests a lure related to a 'fishing guide'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/123?utm_term=fishing+guide+ffxi PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4476783/normal_5fdb52221460d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470960/normal_5fcfa2c6bea5e.pdfIn PDF document text
    • https://piturerakilapes.weebly.com/uploads/1/3/0/7/130775197/64947.pdfIn PDF document text
    • http://wukifiduputafeb.22web.org/plane_and_solid_figures_worksheets_1st_grade.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469827/normal_5ffa3d91a459e.pdfIn PDF document text
    • https://site-1214349.mozfiles.com/files/1214349/25555683849.pdfIn PDF document text
    • https://cdn.sqhk.co/makekajet/ihbjgRI/77171360166.pdfIn PDF document text
    • https://susakatevasek.weebly.com/uploads/1/3/4/8/134871092/b41f43.pdfIn PDF document text
    • https://wubinuju.weebly.com/uploads/1/3/4/6/134642725/xusuvawa-guwurowifaj-xunakufo.pdfIn PDF document text
    • https://site-1258582.mozfiles.com/files/1258582/table_of_contents_format_for_report.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390381/normal_5fd23501185b4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383917/normal_5ff21174db474.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383924/normal_5fc6786a8d15b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379854/normal_5fd997d9c6aeb.pdfIn PDF document text
    • https://cdn.sqhk.co/webepinovet/DVjjTic/12085293689.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419827/normal_5fe29ec33d21c.pdfIn PDF document text
    • https://wuzikixow.weebly.com/uploads/1/3/0/7/130775075/wikumen_zizun.pdfIn PDF document text
    • https://site-1178186.mozfiles.com/files/1178186/ravigesubew.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pifutujotot.epizy.com/como_atualizar_android_j7_pro.pdfIn PDF document text
    • http://balazetesu.epizy.com/bazelgeuse_theme_sheet_music.pdfIn PDF document text
    • http://ferefifadiziv.rf.gd/algebra_2_regents_august_2016_answers.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_off000106c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106C0 4856 bytes
SHA-256: 108f35678c9dc5c895587d4e9e11913b275d9339b43aa930c94f4543aa34dff0
font_01_sfnt_off00011754.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11754 10656 bytes
SHA-256: 9d89408c7fdca32ff715aa3fa004553982433e027184ddf7058b90352b673d25

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