Malicious PDF — malware analysis report

Static analysis result for SHA-256 29d609063cd1d97a…

MALICIOUS

PDF

79.1 KB Created: 2021-03-30 22:32:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: 879a917ac7a06fad3d4935fd3fce8b40 SHA-1: 5f91427c8d52a7adc3b93bdea715909cfcbe0432 SHA-256: 29d609063cd1d97abddca7480b3d0d72eae076ebb8590bdb6e312582e4d2b3fc
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, indicating a high likelihood of malicious intent. The presence of an external URI pointing to 'leonvi.ru' suggests the document is designed to redirect users to a potentially harmful website. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are strong indicators of a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://leonvi.ru/strik?utm_term=romeo+and+juliet+statute+texas PDF link annotation
    • http://bestgirl69.com/what_should_a_chainsaw_spark_plug_look_likesdart.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451350/normal_5fe0350a29474.pdfIn PDF document text
    • http://rovanenafet.getenjoyment.net/radiremubavutinozim.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422620/normal_60556d536181c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490542/normal_5fe7ac2fdb989.pdfIn PDF document text
    • https://cdn.sqhk.co/zativojor/gfLz6ic/76290886825.pdfIn PDF document text
    • http://tortomsk.ru/32455830524x06bs.pdfIn PDF document text
    • http://xariketixagat.mypressonline.com/18977956846.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454048/normal_602640f20a931.pdfIn PDF document text
    • http://wofixizufiw.22web.org/android_actionbardrawertoggle_change_icon.pdfIn PDF document text
    • http://jidokove.scienceontheweb.net/pobawuvezugov.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490917/normal_604cef5b4daad.pdfIn PDF document text
    • http://getallcreditscores.info/tupexoguwaxelimatokzsymt.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://wawopuviginase.epizy.com/67287666413.pdfIn PDF document text
    • https://s3.amazonaws.com/legobegutulo/avery_weigh_tronix_fairmont_mn.pdfIn PDF document text
    • https://s3.amazonaws.com/ziwuvijevo/nufugegazig.pdfIn PDF document text
    • https://s3.amazonaws.com/xofalepelala/tikasupikopomedepikama.pdfIn PDF document text
    • http://xovabegu.epizy.com/zonadekifenisazowarebadif.pdfIn PDF document text
    • https://s3.amazonaws.com/jirebonudur/duboxusajotasefogizonaxex.pdfIn PDF document text
    • https://s3.amazonaws.com/boxalewijim/42941450405.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eb4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB4C 4908 bytes
SHA-256: 31ab4615bc9879e250dc476c27ec78d85b720c3b60199d7b4655140b258cce94
font_01_sfnt_off0000fbf0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBF0 11004 bytes
SHA-256: 42733482fa1f43b6e3413627c74b57d2720c2a18a3d11f605241dc3feb121283
font_02_sfnt_off00012101.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12101 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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