Malicious PDF — malware analysis report

Static analysis result for SHA-256 007e3bc20974ea38…

MALICIOUS

PDF

47.9 KB Created: 2021-06-09 10:11:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 96545f0bced02f0eb784a0c8e3563ce6 SHA-1: aae275dfc90026c7b7a2e9435d79534758dc4c72 SHA-256: 007e3bc20974ea38fe381d8e608f1ebc9bfbd12df3e09dd9ef7437e2d62dfbf9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and lures users with promises of free game currency or hacks. The primary link directs to a site associated with 'free robux' generators, a common social engineering tactic. While no scripts were explicitly extracted, the PDF structure and heuristics indicate malicious redirection and potential download attempts.

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/how-to-get-free-robux-easy-website-game-hack In PDF document text
    • http://altc.de/images/roblox-strucid-free-skin-tutorial_GM431946152.pdfIn PDF document text
    • http://altc.de/images/coin-master-apk-hacked-3526_GM406889139.pdfIn PDF document text
    • http://altc.de/images/free-robux-kid-friendly_GM431946152.pdfIn PDF document text
    • http://altc.de/images/tryrbx-site-free-robux_GM431946152.pdfIn PDF document text
    • http://altc.de/images/coin-master-unlimited-spins-hack_GM406889139.pdfIn PDF document text
    • http://altc.de/images/roblox-jailbreak-hack-download_GM431946152.pdfIn PDF document text
    • http://altc.de/images/free-robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://altc.de/images/how-to-get-minecraft-pe-for-free_GM479516143.pdfIn PDF document text
    • http://altc.de/images/free-robux-just-click_GM431946152.pdfIn PDF document text
    • http://altc.de/images/how-to-get-java-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://altc.de/images/how-to-change-name-in-roblox-for-free-2021_GM431946152.pdfIn PDF document text
    • http://altc.de/images/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • http://altc.de/images/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
    • http://altc.de/images/coin-master-free-spins-2021-apk_GM406889139.pdfIn PDF document text
    • http://altc.de/images/are-robux-generators-safe_GM431946152.pdfIn PDF document text
    • http://altc.de/images/free-robux-with-no-human-verification_GM431946152.pdfIn PDF document text
    • http://altc.de/images/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://altc.de/images/how-to-hack-coin-master-with-root_GM406889139.pdfIn PDF document text
    • http://altc.de/images/free-tiktok-fans-app_GM835599320.pdfIn PDF document text
    • http://altc.de/images/free-minecraft-capes-no-mods_GM479516143.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_off00005221.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5221 25916 bytes
SHA-256: 12257bc7cb6b54d6c45698713a3a9ad5ec697bc71b68c03737c58418aecab3f7
font_01_sfnt_off00008c51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C51 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off0000963c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x963C 19008 bytes
SHA-256: 316f7013612ef47f64c29e299d50681eec21fac23bfda646d9e70fc688d5d2e4

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