Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a80c71a0ff11468…

MALICIOUS

PDF

75.0 KB Created: 2021-02-25 13:22:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 47224ad957091b51876094ec92806834 SHA-1: f72faaf9a36862d313fd05b3687dae794eec959c SHA-256: 0a80c71a0ff114686a8d410df639b92fc8ee29e39187deccdd753c098e328510
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses a password-protected-archive lure. 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 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://baarspo.ru/strik?utm_term=excellence+punta+cana+all+inclusive+deals PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4420767/normal_600b1f8221dcf.pdfIn PDF document text
    • http://xekokikimelaf.iblogger.org/borbaad_bengali_movie_songs_320kbps.pdfIn PDF document text
    • https://cdn.sqhk.co/sevafeluba/cjhijhb/tebukujurenuxotisu.pdfIn PDF document text
    • http://kernig.pro/liwuragapuzoradifeganyxljf.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/jazuravazaguz/33634279622.pdfIn PDF document text
    • https://s3.amazonaws.com/bipovoromoj/reset_password_windows_7_usb.pdfIn PDF document text
    • https://s3.amazonaws.com/jipowumat/how_to_remove_presser_foot_singer.pdfIn PDF document text
    • http://sozogakuvigoxev.epizy.com/jugiribivugik.pdfIn PDF document text
    • http://xawavejemefo.epizy.com/wavugujozafoge.pdfIn PDF document text
    • http://temipaz.epizy.com/how_to_fill_bobbin_in_singer_sewing_machine.pdfIn PDF document text
    • http://gafodix.myartsonline.com/37152727265.pdfIn PDF document text
    • http://tubusivi.rf.gd/lilevoguno.pdfIn PDF document text
    • https://s3.amazonaws.com/gurupixabogivaz/debuxomoluk.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_off0000e818.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE818 5056 bytes
SHA-256: 229f5c245620129e3f511eea144647ae6f9a0a6da14fd386d18914a31363ad6f
font_01_sfnt_off0000f969.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF969 11180 bytes
SHA-256: 134470a603a87e4cdc20943ccb09f8bebaafa7544366b41e3e2e722bfe44544e