Malicious PDF — malware analysis report

Static analysis result for SHA-256 d50115486d67a25f…

MALICIOUS

PDF

33.3 KB Created: 2021-07-06 12:20:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9a287a2da34227ff70afd7a49482a2fe SHA-1: 0b6a07b693e4fb5298cac3ee14585973668c7b67 SHA-256: d50115486d67a25f968418f912448c6bc0a3bfa26648b1db77bb48e14f40738a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure for game-related cheats and currency, directing users to a malicious redirector. The redirector, in turn, serves further malicious PDF files hosted on a different domain, indicating a multi-stage download and redirection scheme. The ML classifier strongly supports the malicious nature of this PDF.

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.tw/app/406889139/coin-master-level-4-game-hack In PDF document text
    • http://baxtton.com/sites/default/files/files/coin-master-exchange-40-free-spins_GM406889139.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/minecraft-client-download_GM479516143.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/mythical-world-roblox-hack_GM431946152.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/free-robux-no-generator_GM431946152.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/minecraft-pc-free_GM479516143.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/coin-master-heaven-daily-free-spins_GM406889139.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/how-to-get-free-robux-2021-2-4_GM431946152.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/is-roblox-free-on-ps4_GM431946152.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/cool-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/hacking-page-for-roblox_GM431946152.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/free-robux-wheel_GM431946152.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/how-to-unblock-roblox-hack-a-wifi-password_GM431946152.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/how-to-hack-roblox-for-robux-on-pc_GM431946152.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/hack-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/how-to-get-minecraft-bedrock-edition-for-free_GM479516143.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/roblox-free-models_GM431946152.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/free-pants-on-roblox_GM431946152.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/how-to-make-a-group-on-roblox-for-free_GM431946152.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
stream_002_off00002e8d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2E8D 22276 bytes
SHA-256: def3342a41696d775c8965a937f082124bbc3c197b8d3c71adf6136022a236f1
font_01_sfnt_off00005fd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FD8 18084 bytes
SHA-256: 2b25429d4f62ce8bcc27b9cefab35a7be2cc11d3dff90dca1f7975a4c2ff109a

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