Malicious PDF — malware analysis report

Static analysis result for SHA-256 02de19f82eac559c…

MALICIOUS

PDF

68.7 KB Created: 2021-01-27 12:51:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: 097e364d3497e876e2d1bf7a0e63cc2a SHA-1: 631e8ee46e0b6f95533ba56502a4143d469b244c SHA-256: 02de19f82eac559cd35988755626103ee8cb8f0298cfe1a52c72cfca3287c492
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, indicating an attempt to lead the user to a harmful site. The ML classifier and ClamAV detection strongly suggest malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URLs point towards a phishing or malware delivery scheme.

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://yafferge.ru/wb?keyword=dodgers%20lakers%20championship%20shirt In PDF document text
    • http://koreanluxe.com/lezalilefisesupupemupuc445m.pdfIn PDF document text
    • http://ourfutures.space/31990917888h5as.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449012/normal_5feb052fd3352.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451369/normal_5fd901a75ce7b.pdfIn PDF document text
    • http://dabuxupufudina.22web.org/gotro_bengali_full_movie_free.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470832/normal_5ff3caf37511e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464068/normal_60074600aa09a.pdfIn PDF document text
    • http://aov.one/canciones_de_bailar_ballet6rcw2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/tonemakopinibem/39467320351.pdfIn PDF document text
    • http://delorikafuba.rf.gd/eurocontrol_airport_cdm_implementation_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/moduxanakuri/regression_testing_report_template.pdfIn PDF document text
    • https://s3.amazonaws.com/lakujusitejojet/unc_public_policy_major_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/jupevuxirapi/bumatidogom.pdfIn PDF document text
    • https://s3.amazonaws.com/babuxufarizuxur/92106832230.pdfIn PDF document text
    • https://s3.amazonaws.com/nedijowewoded/14395894256.pdfIn PDF document text
    • http://foweroboxufafuv.epizy.com/akshay_kumar_video_song_pagalworld.pdfIn PDF document text
    • https://s3.amazonaws.com/sowewazulejewi/math_worksheets_for_grade_1.pdfIn PDF document text
    • https://s3.amazonaws.com/xisakazelelinim/jebiboxozimevadusixi.pdfIn PDF document text
    • http://waxaravibew.epizy.com/raleribexugatubasolitupa.pdfIn PDF document text
    • http://lajirobodogew.epizy.com/rojutuxofe.pdfIn PDF document text
    • http://babudenipovux.rf.gd/archiving_system.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_off0000cda8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDA8 5548 bytes
SHA-256: e802263c4f394263c5af1f3d25ddb68708be258bcce5968b9e2c7df8c1a1f965
font_01_sfnt_off0000e062.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE062 10852 bytes
SHA-256: 68e9392810c2d5cbcc6c9a71e3cea11a92e9ed7713d5ab0fcabdcb1f682c631d