Malicious PDF — malware analysis report

Static analysis result for SHA-256 88c1ecd996cd26c9…

MALICIOUS

PDF

62.6 KB Created: 2021-02-22 20:34:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: b37a72a948b529cd042500c2ef9041c5 SHA-1: bc365e15998928b025377afe7105c1d88d7431f2 SHA-256: 88c1ecd996cd26c924a535bf46b7af7b40edbde63b94d222b09e30a2a69bab51
94 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, and ClamAV detected it as a phishing trojan. The document body, though heavily obfuscated, suggests an attempt to disguise the malicious content as educational material. The presence of embedded URLs and the ML classifier's high confidence score indicate a deliberate attempt to deliver a malicious payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9478

Heuristics 3

  • 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
  • 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://baarspo.ru/strik?utm_term=geometry+proving+triangles+similar+answers PDF link annotation
    • https://cdn.sqhk.co/goponebegor/bhfNzhg/kirikepidaku.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464303/normal_5ff369312b73c.pdfIn PDF document text
    • https://cdn.sqhk.co/zogobadakedu/NcBhfTj/dan_the_man_2-_1_secret_areas.pdfIn PDF document text
    • https://cdn.sqhk.co/gapalagabig/6ibxhc0/free_instagram_repost_app_for_iphone.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4493589/normal_601bde4619d56.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368266/normal_6015b8577dc78.pdfIn PDF document text
    • http://spain50off.info/5891577148qo885.pdfIn PDF document text
    • http://x-bionic.shop/nasb_giant_print_reference_bible_genuine_leatherycz45.pdfIn PDF document text
    • https://cdn.sqhk.co/sedazozesufu/D5Fhihe/veloropelezone.pdfIn PDF document text
    • http://sizegivip.22web.org/churrera_manual_precio_rosario.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jirizaxewusi.epizy.com/bluestone_alley_music_sheet.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e027.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE027 5424 bytes
SHA-256: 7b3d45d68ec2ea27abe19e7e559c029d117385ecb4800cecd5844e4300c7471d

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