Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb22e031d57b4f3e…

MALICIOUS

PDF

70.0 KB Created: 2020-12-28 02:45:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 3ae8d31e4611b8d24f2f79dd7f30db92 SHA-1: 7175b201147e884bda1bbc656936456cde70c683 SHA-256: cb22e031d57b4f3ed47795714f40549b699bef69ea516857788305adb77bf948
96 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The embedded URL points to a phishing site disguised as a game download. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it is designed to trick users into visiting a malicious site, likely for credential harvesting or malware distribution.

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
  • 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://trafffi.ru/strik?utm_term=fr+legends+mod+apk+0.+2.+4 PDF link annotation
    • https://cdn.sqhk.co/vumivatuvi/d23iaCK/ultimate_epic_battle_simulator_mac_os.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393502/normal_5faf9014a7f4f.pdfIn PDF document text
    • https://cdn.sqhk.co/birenejar/eichjgg/bimamilalen.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407994/normal_5f9c69f503a70.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386079/normal_5f94948697c85.pdfIn PDF document text
    • https://cdn.sqhk.co/nupegefozub/RITjegc/little_miami_covid_dashboard.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382782/normal_5fdd9cf5a7265.pdfIn PDF document text
    • https://cdn.sqhk.co/jagakutojut/gg6Noig/ruwizofiwogerodijesa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495976/normal_5fe24625a3ffe.pdfIn PDF document text
    • https://cdn.sqhk.co/lisesemafo/f0heijl/tisaso.pdfIn PDF document text
    • https://cdn.sqhk.co/pupevadojas/g3eUghW/best_country_songs_of_the_50s_and_60s.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/gedimuta/88680223698.pdfIn PDF document text
    • https://s3.amazonaws.com/xapijifas/awakening_the_giant_within.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_off0000d0a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0A7 5692 bytes
SHA-256: c9d2a081b8d372effc0788e6be5a74f23293f0ffdc36d00e2205b293db2eaf1f
font_01_sfnt_off0000e406.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE406 11428 bytes
SHA-256: b43310d93fbb690fcc34e49b7079d24636d11c357eec1e5b4fe6246c5d424a6c