Malicious PDF — malware analysis report

Static analysis result for SHA-256 584a0009047c81a2…

MALICIOUS

PDF

82.3 KB Created: 2021-01-02 16:22:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: b60cf243f5469926cd17fbd50f35ce24 SHA-1: d7c813dddc5a640bf7ab7ae56e630d71c87fb7a7 SHA-256: 584a0009047c81a247b881fe7ee87bb71538d5fbfa1910f48d4abf43d96199d8
154 Risk Score

Malware Insights

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

This PDF file contains a link to a known malicious redirector, which is designed to trick users into downloading a fake GTA 5 APK. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded URL and the document's content suggest a phishing attempt to distribute potentially unwanted software.

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://traffine.ru/123?utm_term=gta+5+apk+download In PDF document text
    • https://cdn-cms.f-static.net/uploads/4380522/normal_5fa62a9b63dc0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500665/normal_5fc47665b5a09.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464303/normal_5fb9a5e6cc338.pdfIn PDF document text
    • https://saxepuxuk.weebly.com/uploads/1/3/4/4/134472003/9509896.pdfIn PDF document text
    • https://narogigadi.weebly.com/uploads/1/3/0/8/130874066/7106962.pdfIn PDF document text
    • https://cdn.sqhk.co/xasakeza/SigJiej/gisariwop.pdfIn PDF document text
    • https://cdn.sqhk.co/perigupa/geRCjbJ/baxaxi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392864/normal_5fc114a446966.pdfIn PDF document text
    • https://wevinavuligi.weebly.com/uploads/1/3/4/5/134505150/dotabitipo.pdfIn PDF document text
    • https://cdn.sqhk.co/nabixisaf/TrzfvSD/9894957889.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
    • https://uploads.strikinglycdn.com/files/90aa1e33-f987-4580-9310-d441ed71df13/murejozofonigejumuba.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_off0000f012.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF012 4612 bytes
SHA-256: fb886aa5e5d5b5a396832e4c2265f76e2f85418399490c826316022d3a7a7278
font_01_sfnt_off0000ffea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFEA 14784 bytes
SHA-256: f755d039687c21a6305a70a5822f3a571b52ae8b347a6a022ad9f645aef9181f
font_02_sfnt_off00012e72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12E72 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3