Malicious PDF — malware analysis report

Static analysis result for SHA-256 09ddd77291b68be6…

MALICIOUS

PDF

34.1 KB Created: 2021-06-19 06:25:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 7fc8b0d26d23d8454406ab053891cc02 SHA-1: 0c24db2b7a9b5cea9600185895cead194526a62f SHA-256: 09ddd77291b68be61a64e7debf55de729108ca78424818f0f3c082e5dc54977c
82 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 4

  • 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.
  • 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-robux-access-code-game-hack PDF link annotation
    • http://iprep-u.com/images/tiktok-free-views-hack_GM835599320.pdfIn PDF document text
    • http://iprep-u.com/images/apps-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://iprep-u.com/images/how-to-hack-coin-master-spin-in-hindi_GM406889139.pdfIn PDF document text
    • http://iprep-u.com/images/robux-online-free_GM431946152.pdfIn PDF document text
    • http://iprep-u.com/images/free-robux-codes-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://iprep-u.com/images/free-robux-no-download_GM431946152.pdfIn PDF document text
    • http://iprep-u.com/images/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
    • http://iprep-u.com/images/www-free-robux_GM431946152.pdfIn PDF document text
    • http://iprep-u.com/images/minecraft-svg-free_GM479516143.pdfIn PDF document text
    • http://iprep-u.com/images/http-coin-master-hack-club_GM406889139.pdfIn PDF document text
    • http://iprep-u.com/images/2021202168-roblox-code-hack_GM431946152.pdfIn PDF document text
    • http://iprep-u.com/images/roblox-promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://iprep-u.com/images/haow-to-hack-robux-no-bc_GM431946152.pdfIn PDF document text
    • http://iprep-u.com/images/robux-hack-tool-download-2021_GM431946152.pdfIn PDF document text
    • http://iprep-u.com/images/coin-master-daily-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://iprep-u.com/images/minecraft-realms-free-trial_GM479516143.pdfIn PDF document text
    • http://iprep-u.com/images/free-views-tiktok_GM835599320.pdfIn PDF document text
    • http://iprep-u.com/images/coin-master-app-for-free-spins_GM406889139.pdfIn PDF document text
    • http://iprep-u.com/images/free-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://iprep-u.com/images/how-to-kill-anyone-in-roblox-hacks-v3rmillion_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_off00002eb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EB6 22660 bytes
SHA-256: 246100afa412671c8c6a957989ede1baf2498f9129293e1b0934e19cdf1bf033
font_01_sfnt_off00006157.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6157 18704 bytes
SHA-256: 72e4a1db85d6073df7e97dca60db87db1f91427518cee48f715219137dac35ab

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