Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e499d9ac401cbdb…

MALICIOUS

PDF

35.8 KB Created: 2021-07-03 21:45:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: a28f0ed23e36bd7079d125d84ffd21d5 SHA-1: fd9856fe9a49a137dc9bac3e7307817bda9b6ee6 SHA-256: 2e499d9ac401cbdbb4d24e459a95e25194c565eef336faaf035d5fce1f8ebd5a
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.tw/app/431946152/google-how-do-you-get-free-robux-game-hack PDF link annotation
    • http://dohafashionstores.com/uploaded_files/userfiles/files/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://www.dohafashionstores.com/uploaded_files/userfiles/files/free-back-accessories-roblox_GM431946152.pdfIn PDF document text
    • http://dohafashionstores.com/uploaded_files/userfiles/files/free-coin-master-gifts_GM406889139.pdfIn PDF document text
    • http://dohafashionstores.com/uploaded_files/userfiles/files/minecraft-xbox-free_GM479516143.pdfIn PDF document text
    • http://www.dohafashionstores.com/uploaded_files/userfiles/files/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://dohafashionstores.com/uploaded_files/userfiles/files/coin-master-2021-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://www.dohafashionstores.com/uploaded_files/userfiles/files/minecraft-free-edition_GM479516143.pdfIn PDF document text
    • http://dohafashionstores.com/uploaded_files/userfiles/files/how-to-get-spins-for-free-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.dohafashionstores.com/uploaded_files/userfiles/files/tiktok-free-pictures_GM835599320.pdfIn PDF document text
    • http://www.dohafashionstores.com/uploaded_files/userfiles/files/roblox-hack-scripts-pastebin_GM431946152.pdfIn PDF document text
    • http://dohafashionstores.com/uploaded_files/userfiles/files/free-robux-real-working_GM431946152.pdfIn PDF document text
    • http://dohafashionstores.com/uploaded_files/userfiles/files/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://dohafashionstores.com/uploaded_files/userfiles/files/can-i-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://dohafashionstores.com/uploaded_files/userfiles/files/free-minecraft-server-maker_GM479516143.pdfIn PDF document text
    • http://dohafashionstores.com/uploaded_files/userfiles/files/robux-premium_GM431946152.pdfIn PDF document text
    • http://www.dohafashionstores.com/uploaded_files/userfiles/files/free-robux-codes-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.dohafashionstores.com/uploaded_files/userfiles/files/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
    • http://dohafashionstores.com/uploaded_files/userfiles/files/coin-master-free-spin-link-twitter_GM406889139.pdfIn PDF document text
    • http://dohafashionstores.com/uploaded_files/userfiles/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://dohafashionstores.com/uploaded_files/userfiles/files/coin-master-free-coins-and-spins-link-today_GM406889139.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_off000032c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32C2 22856 bytes
SHA-256: 9172ec5706b0b17814f789800a246fec3a0c2c371bb37966cf30c44b1a66cc41
font_01_sfnt_off000065dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65DD 19388 bytes
SHA-256: e0d82c167f6ca64f121b23a1748ead6b70296300b19a9978e36a20c70c2cac67

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