Malicious PDF — malware analysis report

Static analysis result for SHA-256 9bad366bdeeab457…

MALICIOUS

PDF

33.6 KB Created: 2021-06-18 13:25:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 73aff5bb3b000820b213d8693f504fdf SHA-1: 1cef6fb72fc1f33ff8dcec59d8c514fccd6ac951 SHA-256: 9bad366bdeeab4574726529660003b73337f3bbb692ceca14e93f4d962e3655f
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. It uses a callback-phone (TOAD) lure. 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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/cbro-roblox-funds-hacks-game-hack PDF link annotation
    • https://scraperite.com/images/btool-hacks-roblox_GM431946152.pdfIn PDF document text
    • https://scraperite.com/images/how-to-get-free-robux-without-doing-anything-2021_GM431946152.pdfIn PDF document text
    • https://scraperite.com/images/ban-roblox-pour-avoir-hack-des-robux_GM431946152.pdfIn PDF document text
    • https://scraperite.com/images/free-minecraft-generator_GM479516143.pdfIn PDF document text
    • https://scraperite.com/images/roblox-frisk-shirt-free_GM431946152.pdfIn PDF document text
    • https://scraperite.com/images/coin-master-free-attack-link_GM406889139.pdfIn PDF document text
    • https://scraperite.com/images/dominus-roblox-free_GM431946152.pdfIn PDF document text
    • https://scraperite.com/images/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • https://scraperite.com/images/www-roblox-com-free-account_GM431946152.pdfIn PDF document text
    • https://scraperite.com/images/how-to-get-minecraft-for-free-on-iphone-2021_GM479516143.pdfIn PDF document text
    • https://scraperite.com/images/cheat-engine-for-roblox-april_GM431946152.pdfIn PDF document text
    • https://scraperite.com/images/all-roblox-dance-hacks_GM431946152.pdfIn PDF document text
    • https://scraperite.com/images/free-robux-real_GM431946152.pdfIn PDF document text
    • https://scraperite.com/images/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://scraperite.com/images/coin-master-rewards-app_GM406889139.pdfIn PDF document text
    • https://scraperite.com/images/how-to-get-free-robux-without-download-apps-or-survey_GM431946152.pdfIn PDF document text
    • https://scraperite.com/images/tiktok-fans-free_GM835599320.pdfIn PDF document text
    • https://scraperite.com/images/how-to-get-free-broken-egg-in-roblox-rpg-world_GM431946152.pdfIn PDF document text
    • https://scraperite.com/images/roblox-arsenal-hack_GM431946152.pdfIn PDF document text
    • https://scraperite.com/images/hack-coin-master-with-lucky-patcher_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_off00002e96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E96 21716 bytes
SHA-256: ad944410c00d687bac75f455a3a7c281ddf5106b1da2b4398b188c7c817a1881
font_01_sfnt_off00005e68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E68 18948 bytes
SHA-256: 16f392549fe0fe8e490d56e8a16ef7834b47d77c22053183b91e309b986e0179

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