Malicious PDF — malware analysis report

Static analysis result for SHA-256 67d592626b717317…

MALICIOUS

PDF

69.3 KB Created: 2021-03-05 06:45:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 8508dc70700a250aaf76ae0ff62f1ebd SHA-1: 8ead8e94f1cebed8a3f017116908c479231e00c7 SHA-256: 67d592626b717317bedba02b3ecb7536ebc8be2305c3fd05c7049243feafe32c
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 0.9997

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://bologen.ru/123?utm_term=what+does+netflix+error+code+tvq-st-103+mean PDF link annotation
    • https://cdn.sqhk.co/zogobadakedu/SjdgRgg/immortal_raid_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/kuretunaba/dhciigj/50845090073.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386618/normal_5ff941fde2547.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375350/normal_60274dd61d10b.pdfIn PDF document text
    • https://cdn.sqhk.co/fefoseto/gh0jijg/72758346908.pdfIn PDF document text
    • http://noverst.xyz/vans_logo_meaning_square_root_answerjq8s1.pdfIn PDF document text
    • http://kernig.store/16189066057sq8w3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385648/normal_60026a23356ca.pdfIn PDF document text
    • https://cdn.sqhk.co/tibatojo/aiiiIhc/nevukixalodipikosonusarik.pdfIn PDF document text
    • https://cdn.sqhk.co/titabofasika/TiH6Xgg/swatting_meaning_in_tamil.pdfIn PDF document text
    • https://cdn.sqhk.co/sedazozesufu/fojbggj/bluffton_sc_weather_january.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sobibuxasegisun.rf.gd/dj_jagat_raj_bhakti_song_2019.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_off0000d075.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD075 5920 bytes
SHA-256: af9b0872855ef8b347deb4f41f714ab51562fc9140b223aeff520ae21f0600bb
font_01_sfnt_off0000e48f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE48F 10728 bytes
SHA-256: 949f672d8fb232e10ec80b7cac1defe5742a40b597f7e65d4ad61989e258e364