Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c6ce73347edaa42…

MALICIOUS

PDF

46.4 KB Created: 2021-05-17 03:02:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 0585e88ade75a7d94e91ec81d3952d44 SHA-1: a99a9cea019b379f4c365b4550f4517b1a058635 SHA-256: 9c6ce73347edaa4250e66b4550a6369bd53850ce01627ac6b94c4ac13adcc145
122 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 fake-CAPTCHA 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 0.8948

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.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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.xyz/app/431946152/free-robux-generator-2021-game-hack PDF link annotation
    • http://www.alsultantrading.ae/userfiles/files/rbxfree-com-free-robux_GM431946152.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/apps-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/http-coin-master-hack-club_GM406889139.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/roblox-admin-hack_GM431946152.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/coin-master-app-free-download_GM406889139.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/how-do-you-hack-roblox_GM431946152.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/coinmaster-com_GM406889139.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/free-robux-sites-that-work_GM431946152.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/coin-master-hack-tool_GM406889139.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/robux-codes-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/free-roblox-toys_GM431946152.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/how-to-get-roebucks-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/minecraft-com-free_GM479516143.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/static-moonactive-net_GM406889139.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/coin-master-hack-twitter_GM406889139.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/how-to-get-free-cards-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004c32.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C32 25712 bytes
SHA-256: b4800d1e754f51870a432bd1742e1798156dc146144206128d8f9d3691867948
font_01_sfnt_off00008771.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8771 2844 bytes
SHA-256: baad2f3f6808f4af03fa9398e38c580c8d846f7f773a947d8cc1f39b2753d31a
font_02_sfnt_off00009133.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9133 18748 bytes
SHA-256: fca1806ffff7593a0a2d811b077fe14576afb362c0c2e8ffc695fbf8edc3964d

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