Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d5f3a370c25e9ee…

MALICIOUS

PDF

35.3 KB Created: 2021-06-26 03:03:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: f695139308d395258c1aa50702d38208 SHA-1: 83101dd63249db765bbdcbb2518cabd7c45bd18b SHA-256: 2d5f3a370c25e9eedc5abc9782fc876206bc46217442b6781fd3fcf77c865b53
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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 http://netcdn.co/app/431946152/free-roblox-card-codes-2021-no-survey-game-hack PDF link annotation
    • http://103.40.122.33/akasia/repository/roblox-gui-hack-jailbreak_GM431946152.pdfPDF link annotation
    • http://103.40.122.33/akasia/repository/coin-master-hack-xyz-download-free_GM406889139.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/free-spins-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/free-roblox-explosive_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/how-to-get-free-robux-on-hp-laptop_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/skisploit-roblox-hack_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/free-robux-tv_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/robux-hack-2021-admin-codes_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/project-jojo-roblox-hack_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/how-to-get-free-money-on-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/free-girl-faces-on-roblox_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/auto-clicker-download-roblox-free_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/free-robux-no-downloading-apps_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/5-roblox-games-that-give-free-robux-working-youtubeyoutube_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/free-minecraft-servers-to-join_GM479516143.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/roblox-free-rs-2021_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/free-pet-food-coin-master_GM406889139.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003183.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3183 22264 bytes
SHA-256: f181f3d377abdbab9f8089a862976917886f8c0b07f6a57049c44b5a19767aee
font_01_sfnt_off000062f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62F9 19660 bytes
SHA-256: f8d41afeaf04e46c6a6cdc79a4f3269bfdd1323499eea6f53c103b53cf631fd5

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