Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9225a3ad40414a7…

MALICIOUS

PDF

35.3 KB Created: 2021-06-19 21:22:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 82fbc36457252a8a7017519c301d4bdc SHA-1: 11a1d9b0ee68585f66d14fb184301b16fef0db83 SHA-256: d9225a3ad40414a7bfddc9cd46c7a4d02a342d422144991f08629091af30c293
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/431946152/300-roblox-accounts-free-v34m-game-hack PDF link annotation
    • https://i-photo7.com/image/data/files/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/free-minecraft-hosting-24-7_GM479516143.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/how-many-levels-are-in-coin-master_GM406889139.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/roblox-free-skin_GM431946152.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/coin-master-free-spins-link-app-download_GM406889139.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/minecraft-pocket-edition-apk-free-download_GM479516143.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/free-robux-safe_GM431946152.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/roblox-free-body_GM431946152.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/how-to-get-free-items-in-roblox-no-hack_GM431946152.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/coin-master-hack-tool-v1-9_GM406889139.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/coin-mast-hacks_GM406889139.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/tiktok-free-to-download_GM835599320.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/freerobuxhack-us-2021_GM431946152.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/free-minecraft-alt-accounts_GM479516143.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/coin-master-apk_GM406889139.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/coin-master-hack-apk-july-29_GM406889139.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/today-free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/roblox-e-free_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_off00002fd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FD9 22852 bytes
SHA-256: 0f837fe8dabfde99968ac9be6a4d779dc453512e1ef0412c6189a9b11d9517a6
font_01_sfnt_off000062c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62C8 19696 bytes
SHA-256: c775fed438b986be286be4e0c5c09f9383cb482ebd1a6cdaf09f53455c4e163c

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