Malicious PDF — malware analysis report

Static analysis result for SHA-256 d647e9e7b9c0478a…

MALICIOUS

PDF

34.0 KB Created: 2021-06-21 05:43:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 420e083f41517d8311dfe0f3a7db0813 SHA-1: a311fdb5401601c85abc3c0af8b68c2af2e58f0c SHA-256: d647e9e7b9c0478a0f2b800c1c72e4489b3602f6573be40a2242201a36c84273
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to websites that are flagged as malicious redirectors, specifically advertising 'free Robux' or game hacks. The ML classifier also strongly indicated maliciousness. These links likely lead to further malicious content, such as phishing pages or malware downloads, serving as a lure to trick users into clicking.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/roblox-real-hack-robux-real-encrypted-game-hack In PDF document text
    • http://getthelook-bkk.com/images/free-robux-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://getthelook-bkk.com/images/free-robux-card-codes_GM431946152.pdfIn PDF document text
    • http://getthelook-bkk.com/images/roblox-studio-how-to-add-music-for-free_GM431946152.pdfIn PDF document text
    • http://getthelook-bkk.com/images/how-to-get-robux-and-tix-for-free-on-roblox_GM431946152.pdfIn PDF document text
    • http://getthelook-bkk.com/images/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://getthelook-bkk.com/images/free-minecraft-resource-packs_GM479516143.pdfIn PDF document text
    • http://getthelook-bkk.com/images/who-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://getthelook-bkk.com/images/free-texture-packs-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://getthelook-bkk.com/images/free-roblox-generator_GM431946152.pdfIn PDF document text
    • http://getthelook-bkk.com/images/tiktok-follower-bot-free_GM835599320.pdfIn PDF document text
    • http://getthelook-bkk.com/images/i-want-robux_GM431946152.pdfIn PDF document text
    • http://getthelook-bkk.com/images/how-to-hack-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://getthelook-bkk.com/images/safe-free-robux-generstor_GM431946152.pdfIn PDF document text
    • http://getthelook-bkk.com/images/free-stuff-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://getthelook-bkk.com/images/how-do-you-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://getthelook-bkk.com/images/how-to-hack-someones-account-on-roblox_GM431946152.pdfIn PDF document text
    • http://getthelook-bkk.com/images/get-minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • http://getthelook-bkk.com/images/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • http://getthelook-bkk.com/images/roblox-block-piece-hack_GM431946152.pdfIn PDF document text
    • http://getthelook-bkk.com/images/how-to-get-free-robux-fast-and-easy_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_002_off00002db7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2DB7 22016 bytes
SHA-256: 1ec16a1e7882dabc581c57e8b7be8539ea1cc3a6f8ee66bbc7683ac6f7face30
font_01_sfnt_off00005e66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E66 19428 bytes
SHA-256: 9f4417c6f6eb992c9bbc36c85f61567fed69610e045aac894faab3896afa5749

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