Malicious PDF — malware analysis report

Static analysis result for SHA-256 a54e82cbf8d0e7bf…

MALICIOUS

PDF

70.2 KB Created: 2021-02-14 03:31:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: d7b6015425c105b41e59393932e16d60 SHA-1: 5cb677449378cfa85fba85e474804b49f6485706 SHA-256: a54e82cbf8d0e7bfbc2a4b7d1ec8f29ebd540613439e50dbed4bb9a419db6047
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 a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly support its malicious nature. Although no scripts were extracted, the presence of malicious URLs and the overall detection profile suggest the document is designed to redirect users to harmful content.

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
  • 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://crophysi.ru/123?utm_term=san+judas+tadeo+oracion+de+amor In PDF document text
    • http://femokotafi.66ghz.com/zevowotoxerag.pdfIn PDF document text
    • http://tedesuvukifa.iblogger.org/gudasikixotuwojonizofom.pdfIn PDF document text
    • http://mavpa.fun/calendar_template_2019_printablewb4nf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500904/normal_5ff3f4d5e693f.pdfIn PDF document text
    • http://mrshadow.net/cambridge_university_phd_thesis_guidelinesg1jas.pdfIn PDF document text
    • http://scrlt.xyz/relationship_matrix_template_wordci28j.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422373/normal_5fea2c149f679.pdfIn PDF document text
    • http://memexeti.66ghz.com/5929419771.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478655/normal_600281d39ddbb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378382/normal_5fe058bca576e.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/xupimaral/ribopaxozonuk.pdfIn PDF document text
    • https://s3.amazonaws.com/pasutiz/ubuntu_server_16._04._5.pdfIn PDF document text
    • http://likusikukir.epizy.com/carmina_burana_vocal_score.pdfIn PDF document text
    • http://joxugodeluda.rf.gd/94276313453.pdfIn PDF document text
    • https://s3.amazonaws.com/guwutivupudutu/46419785964.pdfIn PDF document text
    • https://s3.amazonaws.com/sezewu/70172665045.pdfIn PDF document text
    • https://s3.amazonaws.com/sukobogixe/christmas_background_photoshop_free.pdfIn PDF document text
    • https://s3.amazonaws.com/makixibawumebol/cement_sheet_for_ceiling.pdfIn PDF document text
    • https://s3.amazonaws.com/zubata/bob_marley_exodus_album_free.pdfIn PDF document text
    • http://tereralubo.epizy.com/90741459598.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_off0000d43b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD43B 5232 bytes
SHA-256: fa3899dd920ac0fedd1aef3de1cd6bc5a9b1b37e6a978c44f2a06c6166941625
font_01_sfnt_off0000e5f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5F0 11132 bytes
SHA-256: de83074a3328805b32fdbfd2ead9a6d221804311f4a00e45d3cc321f5199563d

Open this report in the interactive analyzer, or submit your own file for analysis.