Malicious PDF — malware analysis report

Static analysis result for SHA-256 754e3a18e9b193cf…

MALICIOUS

PDF

48.7 KB Created: 2021-06-07 00:16:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8815b478719818b91b963fcdfd5379d9 SHA-1: d4240069a4d4997f6e4b03c1eaac776825074d21 SHA-256: 754e3a18e9b193cf5d035111ab57ee6360ef1a55afda4657a8e71c0f11fa19b9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for a game hack redirector lure, pointing to a URL that is also flagged as malicious infrastructure. The document body, though heavily obfuscated, contains references to 'free robux' and 'game hack', reinforcing the lure. The embedded URL is the primary indicator of malicious activity, likely leading to a phishing or malware download site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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.tw/app/431946152/do-you-get-free-robux-with-builders-club-game-hack In PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/roblox-download-free-hp_GM431946152.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/roblox-script-hack-pet-simulator_GM431946152.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/minecraft-login-free_GM479516143.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/free-tiktok-accounts-and-passwords_GM835599320.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/comment-hacker-roblox-sur-bubble-gum-simulator_GM431946152.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/robux-hacks-2021_GM431946152.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/free-roblox-robux-hack-generator-no-survey_GM431946152.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/roblox-easy-cheat-engine-hacks_GM431946152.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/free-visual-studio-roblox-exploit-template_GM431946152.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/minecraft-java-edition-redeem-code-free-2021_GM479516143.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/robux-hack-no-subscription_GM431946152.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/roblox-make-shirt-free_GM431946152.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/how-to-get-a-free-bighead-in-roblox_GM431946152.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/como-hackear-el-roblox-con-david-pg_GM431946152.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/cheat-in-roblox-robux-2021_GM431946152.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/free-roblox-accounts-with-obc-lifetime-2021_GM431946152.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/free-bane-mask-on-roblox_GM431946152.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/is-minecraft-dungeons-free_GM479516143.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/how-do-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/robux-com-free_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000052cd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x52CD 25648 bytes
SHA-256: a7c0f56503bb177e99eae51cc775782e6ff5f9a4b4cb97b6784abff3b0f3f12a
font_01_sfnt_off00008f09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F09 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off000098f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98F4 19180 bytes
SHA-256: c05147414706f2a7330622065f7ebbd54b28c43ed2e9fd76c975fa82ba439ff9

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