Malicious PDF — malware analysis report

Static analysis result for SHA-256 99fe7007446c5f92…

MALICIOUS

PDF

70.4 KB Created: 2021-01-25 21:34:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-16
MD5: c9420d53e25e981b15721368ce5344ba SHA-1: 72ed2bbe2eba7713eab5094922d5e9982cf69466 SHA-256: 99fe7007446c5f9223d8e4c3cc2cd72868b54ca39775b54ebdd7407e2bad0840
96 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, trafffi.ru, which is likely used for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site, potentially for credential harvesting or further payload delivery.

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/123?utm_term=geometry+logic+puzzles+worksheets+with+answers PDF link annotation
    • http://help-bluebadgecenter.com/smashing_four_goblin_max_level763ur.pdfIn PDF document text
    • https://cdn.sqhk.co/pabelewexo/jhiM2jf/94296089713.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/wozowuledij/93029387768.pdfIn PDF document text
    • https://s3.amazonaws.com/rubidokezive/62230025076.pdfIn PDF document text
    • https://s3.amazonaws.com/nalifij/art_deco_border_design_vector_free.pdfIn PDF document text
    • https://s3.amazonaws.com/libosokune/kuvonukejizibakakutulijum.pdfIn PDF document text
    • https://s3.amazonaws.com/tulosa/20041369344.pdfIn PDF document text
    • https://s3.amazonaws.com/dinilederu/aladdin_friend_like_me_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/zuses/honey_bee_photos.pdfIn PDF document text
    • https://s3.amazonaws.com/nowonovege/bewitched_bothered_and_bewildered_lead_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/xugigabitulu/barcelona_fc_team_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/dudurat/ioi_group_annual_report_2014.pdfIn PDF document text
    • https://s3.amazonaws.com/tutapaxi/python_2_mac.pdfIn PDF document text
    • https://s3.amazonaws.com/tesodagiwor/corrugated_tin_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/vovabagubajegeb/69048576169.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_off0000d55e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD55E 5684 bytes
SHA-256: 46685249416ca05c6ac84a51c2e4655d305ab63a519e283cdab350b92b7c2a90
font_01_sfnt_off0000e8b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8B4 10464 bytes
SHA-256: e82483448876990783d54b22946b05f50abc94ef69814cf400639f23b1483be6

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