Malicious PDF — malware analysis report

Static analysis result for SHA-256 f569ea2ff4c3c3c9…

MALICIOUS

PDF

74.5 KB Created: 2021-02-28 16:42:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 38c3a1705b3c00ec584427e19b6cafd0 SHA-1: 205da6cdbe8434f126be55d1cb7acba7dab5af40 SHA-256: f569ea2ff4c3c3c9a6020af72b614da5e924e1983ed84681437fd40fd38851ee
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The embedded URL points to a suspicious domain, likely serving a malicious payload or phishing content. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to trick users into visiting a malicious site.

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://seumenha.ru/strik?utm_term=how+to+build+a+creeper+farm+1.16+bedrock PDF link annotation
    • http://peroruse.iblogger.org/guidelines_for_cardholder_data_elements.pdfIn PDF document text
    • https://cdn.sqhk.co/zitibidino/ghhhgey/32881484599.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/widiku/free_jan_2019_calendar_template.pdfIn PDF document text
    • http://gadoxijumulop.epizy.com/xesizaxolitimi.pdfIn PDF document text
    • https://s3.amazonaws.com/pazerogasarinu/anthem_pc_demo.pdfIn PDF document text
    • https://s3.amazonaws.com/dewutexorob/24336689728.pdfIn PDF document text
    • https://s3.amazonaws.com/fixararololu/86146430503.pdfIn PDF document text
    • https://s3.amazonaws.com/pusori/28768078107.pdfIn PDF document text
    • http://teruxarudo.epizy.com/zexezekulagudajegox.pdfIn PDF document text
    • https://s3.amazonaws.com/fewunadupop/fosudibeliwumiveluw.pdfIn PDF document text
    • https://s3.amazonaws.com/xanunafojuloki/63148144988.pdfIn PDF document text
    • http://bibirosomuxir.epizy.com/dekenonakepusedinerive.pdfIn PDF document text
    • http://rejamokag.rf.gd/renofimiw.pdfIn PDF document text
    • https://s3.amazonaws.com/pokorevalaxex/29492450186.pdfIn PDF document text
    • https://s3.amazonaws.com/dugibabafod/66349934540.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_off0000e7ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7AE 5620 bytes
SHA-256: d709480224c35b6da9e946d05eb8154082d782473c1c412102c45a5d4e778f9b
font_01_sfnt_off0000facb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFACB 9892 bytes
SHA-256: 1ede242bca84012e50f1b6fe9526df24841db22a11ed588d5666b6ac3a5f4128

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