Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b00cc970472f4b6…

MALICIOUS

PDF

28.9 KB Created: 2021-05-10 18:36:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 7e9b64fe51afa7e77fbc1900c41e5422 SHA-1: 395a06dd6b102b348b0e109ffbe61fa1b588220f SHA-256: 1b00cc970472f4b66a7872613481829f59b17f8da2c704d39fff0ae08101a3b1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, disguised as "free generators" or "game hacks" for popular games. The primary lure URL is https://netcdn.xyz/app/431946152/free-ways-to-get-robux-game-hack, which is also present in the document body. The document's structure and embedded links suggest it is part of a phishing campaign aiming to trick users into visiting malicious sites, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9774

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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-ways-to-get-robux-game-hack In PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/coin-master-support_GM406889139.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/best-free-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/minecraft-bedrock-edition-download-pc-free_GM479516143.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/free-robux-just-enter-username_GM431946152.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/hack-de-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/game-give-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/minecraft-xray-hack_GM479516143.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/minecraft-hacks-list_GM479516143.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/coins-master-hack_GM406889139.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/minecraft-xbox-360-free_GM479516143.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/coinmaster-rewards_GM406889139.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/how-to-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/free-coin-master-spins-blogger_GM406889139.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/download-hack-coin-master-apk_GM406889139.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/archery-master-3d-unlimited-coins-hack_GM406889139.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/coin-master-hack-blogspot_GM406889139.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/coin-master-spin-hack-app_GM406889139.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/claimrobux-net_GM431946152.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/coin-master-hacks-for-pet-food_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_off00002142.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2142 20356 bytes
SHA-256: ce21e098f93bddc139924889f8a148d43907c4379b149572bfd6d4a2c030ca0c
font_01_sfnt_off00004ccb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CCB 18724 bytes
SHA-256: 4748f019d46a9554f00c7c8cf9bb59ec204dfb95bc520e2d25b5a7c8ef81b270

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