Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c5c008262038969…

MALICIOUS

PDF

35.1 KB Created: 2021-06-19 15:41:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 05c5a03d4f4c56a93be524309128862c SHA-1: 235ddc68f4e19914d649fdaf9e214159e76fe077 SHA-256: 6c5c008262038969479c63ba77b169b106b1a06bf456757364519e29e1256baf
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/how-to-hack-roblox-accounts-2021-no-download-game-hack PDF link annotation
    • http://atiltd.com.tw/upload/files/free-robux-no-offers_GM431946152.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/minecraft-hacks-115-2_GM479516143.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/how-to-earn-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/free-coin-master-spins-blog_GM406889139.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/free-robux-please_GM431946152.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/free-robux-just-click_GM431946152.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/haktuts-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/toolbox-for-minecraft-ios_GM479516143.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/how-to-get-unlimited-free-robux-on-roblox-2021-1_GM431946152.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/how-to-get-hacks-on-roblox_GM431946152.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/roblox-person_GM431946152.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/icloud-the-cheating-app-for-roblox_GM431946152.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/download-coin-master-hack-mod-apk_GM406889139.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/free-roblox-clothes-templates_GM431946152.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/games-that-give-free-robux_GM431946152.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/how-to-use-someones-ip-on-roblox-to-hack_GM431946152.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/coin-master-free-coins-and-spins-app_GM406889139.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/how-to-get-free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/roblox-urbis-level-hack_GM431946152.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/minecraft-download-free-download_GM479516143.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ffc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FFC 22380 bytes
SHA-256: 1b3800bd93b23ac23aee57df32f32a721c762423c3486da930b15d116888f3d5
font_01_sfnt_off000061b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61B9 19808 bytes
SHA-256: a8397f75cf3fbf86c07dc5054265f4f1e3b415e2351cd4c7057c36bc39b62a2f

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