Malicious PDF — malware analysis report

Static analysis result for SHA-256 677cb65e58865080…

MALICIOUS

PDF

46.3 KB Created: 2021-06-04 01:00:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 341ee1f0455320c6068f2819b1bb763d SHA-1: 2b8c293c994044632907df8b9080ce5400d0c7fb SHA-256: 677cb65e5886508039676db0fe2c31cb62303febb83a442b39a021c2e1eac102
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 0.9832

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 https://netcdn.online/app/406889139/coin-master-hacks-reddit-game-hack PDF link annotation
    • http://abdinusababellibrary.ac.id//repository/cheating-hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/spin-links-for-coin-master_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/rblx-city-free-robux_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/tiktok-free-likes-and-followers-apk-download_GM835599320.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/abd-roblox_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/coin-master-spins_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/www-coinmaster-com_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/free-gfx-roblox_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/minecraft-bedrock-free_GM479516143.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/roblox-hack-site_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/new-free-money-links-coin-master_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/coin-master-link-today_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/how-to-get-minecoins-in-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id/repository/coin-master-free-soins_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id/repository/roblox-apk-hack_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/links-for-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/coin-master-free-spins-hacktman_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/coin-master-hack-pro-gamers-com_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
stream_004_off00005270.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5270 30012 bytes
SHA-256: 207878314e84bdde320ff6cad09e7c14cb8269370379e74db164f0a0aab98614
font_01_sfnt_off000093b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93B6 17888 bytes
SHA-256: 63a6a5d9916b9ee5af7207625cec6907b74dd50493b17e0c9eae8777c3cfd91e

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