Malicious PDF — malware analysis report

Static analysis result for SHA-256 a375f5ce8aa9e88b…

MALICIOUS

PDF

79.2 KB Created: 2021-02-17 23:04:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: f23f5dd1185562e097543ddf26f58080 SHA-1: 50ce3c0d3f0631a30a8546f1df6cc6be2bd30109 SHA-256: a375f5ce8aa9e88bd92d85b4adca7be315a79d373e5520558c2cee37b2065cda
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://bologen.ru/123?utm_term=best+starfinder+society+scenarios PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4375209/normal_601bfce6b67ba.pdfIn PDF document text
    • http://redpandarecycling.com/31503831874aedyn.pdfIn PDF document text
    • http://hamsterbig.com/gps_garmin_64_manualhvurw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484154/normal_5ff97380d02fd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486033/normal_5fe5ed0a8b75f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384461/normal_5fcbe99aa69d7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387218/normal_601dcee95d0e8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422133/normal_5fe33c51ebe12.pdfIn PDF document text
    • http://creditscorecard.info/15414877597zf81o.pdfIn PDF document text
    • http://yogist.fun/16357264011zih7v.pdfIn PDF document text
    • http://contact-git.top/marvel_future_fight_apkpure3z6t8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376126/normal_5ff27303a0c71.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/tesotiwapax/69259714567.pdfIn PDF document text
    • http://wirugon.epizy.com/pojodebaj.pdfIn PDF document text
    • https://s3.amazonaws.com/fofeguj/bootstrap_3._0_3_free.pdfIn PDF document text
    • http://zotibulavozixu.rf.gd/sarexaperaxikeruru.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_off0000f990.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF990 5132 bytes
SHA-256: bc431dea14d3eefde65f024af98c2a9434e56db20027bcee46c79190977b6e5a
font_01_sfnt_off00010b22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B22 10660 bytes
SHA-256: b236f346358d8640c6ff04918c389d369c0df041c099f5bcad2e9f9cc791e08a