Malicious PDF — malware analysis report

Static analysis result for SHA-256 f98983868b469b99…

MALICIOUS

PDF

43.1 KB Created: 2021-05-16 04:52:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27
MD5: f7d425dfdea086e029a619ed787f7a30 SHA-1: fdea050f5ca7e17c1d33e26845b32710bd412b64 SHA-256: f98983868b469b9944820c1bd8bd7a21853d7e57471c3fd954a7295f8b272e7a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically targeting users interested in game hacks and generators. The heuristic firings indicate a malicious redirector lure, and the embedded URLs confirm the attempt to lead users to potentially harmful content. While no scripts were explicitly extracted, the nature of the links suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/479516143/minecraft-modded-client-game-hack In PDF document text
    • http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/hack-coin-master-1_GM406889139.pdfIn PDF document text
    • http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/robux-generator_GM431946152.pdfIn PDF document text
    • http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/coin-master-strategy_GM406889139.pdfIn PDF document text
    • http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/how-to-get-free-roebucks_GM431946152.pdfIn PDF document text
    • http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/coin-master-free-spins-link-blogspot-2021_GM406889139.pdfIn PDF document text
    • http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/coin-master-time-hack_GM406889139.pdfIn PDF document text
    • http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/free-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/i-want-free-robux_GM431946152.pdfIn PDF document text
    • http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/free-spins-coin-master-cheat_GM406889139.pdfIn PDF document text
    • http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/free-robux-no-human-verify_GM431946152.pdfIn PDF document text
    • http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/master-coin-hack-game_GM406889139.pdfIn PDF document text
    • http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/coin-master-apk-free-download_GM406889139.pdfIn PDF document text
    • http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/cm-daily-spins_GM406889139.pdfIn PDF document text
    • http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/free-coins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/coin-master-spin-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/get-free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/youtube-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/roblox-robux-codes-2021_GM431946152.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_003_off00004e79.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E79 25284 bytes
SHA-256: b83847e2febcfcfc1bf0d264058fa2aba3eb9fba04aadf8d6f8d2377c45a6225
font_01_sfnt_off0000872e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x872E 17960 bytes
SHA-256: 4161a5b04ba84e654cfb52330de164b16b4fe14e899f506d74b6b062c73d7ea5

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